Weekly Information about Bright Comets (2022 July 30: North)

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Updated on August 7, 2022
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern Hemisphere.
Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

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* C/2017 K2 ( PanSTARRS )

Now it is bright as 8.3 mag (Aug. 1, Carlos Labordena). It is observable at 7.5-8 mag for a long time from 2022 to 2023. In the Northern Hemisphere, it stays observable in good condition until autumn. However, it is not observable at the high light from autumn to 2023 summer. In the Southern Hemisphere, it stays observable in good condition for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  16 30.26   -9 54.4   1.855   2.522   120    8.4  20:42 ( 15, 44)  
Aug.  6  16 20.12  -12 50.1   1.900   2.465   111    8.3  20:33 ( 23, 39)  

* C/2021 P4 ( ATLAS )

It brightened up to 10.4 mag from June to July (July 22, Ken-ichi Kadota). Now it is not observable. In the Souther Hemisphere, it will appear in the morning sky at 12 mag in October. It will never be observable again in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   9 58.38   14 37.8   1.975   1.080    20    9.7  20:42 (112, -6)  
Aug.  6  10 14.90    8 55.4   1.991   1.086    19    9.7  20:33 (108,-10)  

* C/2021 E3 ( ZTF )

Now it is very bright as 9.8 mag (June 25, Marco Goiato). It will be fading gradually after this. In the Southen Hemisphere, it stays observable in good condition for a long time, although it becomes temporarily low in August. In the Northern Hemisphere, it is not observable until November when it fades down to 13 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   9 35.14  -45 20.7   2.062   1.882    65   10.8  20:42 ( 57,-40)  
Aug.  6   9 41.93  -43 27.2   2.187   1.913    60   11.0  20:33 ( 60,-42)  

* C/2019 L3 ( ATLAS )

It brightened up to 8.3 mag in winter (Jan. 6, Toshiyuki Takahashi). Now it is fading. Now it is not observable. It will appear in the morning sky again in September in the Southern Hemisphere, or in October in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   8 34.09    0 24.8   4.945   3.993    18   11.5   3:29 (245,-31)  
Aug.  6   8 41.25   -0 45.7   4.972   4.022    18   11.6   3:37 (251,-26)  

* 73P/Schwassmann-Wachmann 3

Now it is 12.3 mag (July 19, Thomas Lehmann). It brightens up to 11-12 mag from summer to autumn. It stays observable in good condition in the Southern Hemisphere. In the Northern Hemisphere, it becomes extremely low from August to September. Michael Jager detected its two fragments at 19 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  12 11.48    1 24.9   1.200   1.046    55   12.2  20:42 ( 82, 13)  
Aug.  6  12 32.32   -2 20.7   1.159   1.014    55   11.9  20:33 ( 79, 11)  

* C/2019 T4 ( ATLAS )

Now it is bright as 12.4 mag (July 20, Ken-ichi Kadota). It stays 12 mag for a while. It becomes unobservable from August to November in the Northern Hemisphere, or from September to December in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  12 26.67   -3 27.8   4.663   4.263    60   12.2  20:42 ( 76, 13)  
Aug.  6  12 32.97   -3 15.6   4.759   4.270    55   12.2  20:33 ( 78, 10)  

* C/2020 R7 ( ATLAS )

Now it is 13.7 mag (July 25, Chris Wyatt). It will brighten up to 12.5 mag in summer. In the Southern Hemisphere, it stays observable in excellent condition for a long time. In the Northern Hemisphere, it locates extremely low for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 33.88  -54 34.6   2.237   2.995   130   12.5  21:01 (  0,  1)  
Aug.  6  17 15.66  -51  1.0   2.300   2.985   123   12.6  20:33 (  3,  4)  

* 22P/Kopff

Now it is 13.9 mag (July 29, Chris Wyatt). It stays observable in good condition after this. But it will be fading gradually after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   1 33.12    4 20.3   1.536   2.027   103   12.7   3:29 (319, 52)  
Aug.  6   1 37.50    4 21.1   1.501   2.067   108   12.8   3:37 (330, 56)  

* C/2022 E3 ( ZTF )

Now it is bright as 12.8 mag (Aug. 1, Toshihiko Ikemura, Hirohisa Sato). It will approach to Earth down to 0.29 a.u. in 2023 February, and it is expected to brighten up to 5 mag. In the Northern Hemisphere, it stays observable in excellent condition. In the Southern Hemisphere, it becomes unobservable from late September to early February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 40.20   35 54.1   2.119   2.663   111   12.9  21:07 (180, 89)  
Aug.  6  17 20.93   35 46.0   2.117   2.584   105   12.8  20:33 (106, 87)  

* C/2020 V2 ( ZTF )

Now it is 13.0 mag (July 22, Ken-ichi Kadota). It is expected to brighten up to 10 mag in 2023. In the Northern Hemisphere, it stays observable in good condition until 2023 autumn, although it becomes very low temporarily in summer. In the Southern Hemipshere, it stays unobservable until 2023 summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  10  2.84   53 22.7   4.532   3.792    38   13.1  20:42 (143, 18)  
Aug.  6  10  6.61   53  3.4   4.479   3.736    38   13.0  20:33 (144, 16)  

* 117P/Helin-Roman-Alu 1

Now it is 13.5 mag (July 29, Chris Wyatt). It stays observable at 13-14 mag for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  18 29.79  -32 27.6   2.129   3.042   148   13.3  21:58 (  0, 23)  
Aug.  6  18 26.97  -32 28.4   2.182   3.043   141   13.4  21:28 (  0, 23)  

* C/2020 K1 ( PanSTARRS )

Now it is 13.6 mag (July 29, Chris Wyatt). It is expected to brighten up to 11 mag in 2023. In the Northern Hemisphere, it stays observable in good condition until November. But it becomes unobservable after that. In the Southern Hemisphere, it stays observable in good condition for a long time, although it becomes unobservable temporarily from November to January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 37.02    8 31.3   3.384   4.092   128   13.4  21:05 (  0, 63)  
Aug.  6  17 31.14    6 40.3   3.411   4.050   122   13.3  20:33 (  1, 62)  

* C/2021 F1 ( Lemmon-PanSTARRS )

Now it is very bright as 11.3 mag (July 5, Thomas Lehmann). It will be fading after this. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   4 27.49  -39 40.6   1.928   2.051    82   13.6   3:29 (314, -7)  
Aug.  6   4 38.73  -44 51.4   1.954   2.136    85   14.0   3:37 (321, -7)  

* C/2019 U5 ( PanSTARRS )

Now it is 13.7 mag (July 22, Ken-ichi Kadota). It is expected to brighten up to 12 mag in 2023. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it locates extremely low in 2022, but it will be observable in good condition in 2023.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  13 27.92   29 26.3   4.521   4.222    66   13.7  20:42 (100, 42)  
Aug.  6  13 26.14   27 48.0   4.584   4.191    61   13.7  20:33 (100, 38)  

* 9P/Tempel 1

Now it is 15.0 mag (July 25, Chris Wyatt). Now it is fading. It stays 13-14 mag for a while. It is observable in excellent condition in the Southern Hemisphere. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  23  9.77  -25 14.5   1.155   2.063   143   13.8   2:41 (  0, 30)  
Aug.  6  23  4.94  -26 14.3   1.161   2.102   150   13.9   2:09 (  0, 29)  

* 81P/Wild 2

Now it is not observable. It will appear in the morning sky in September in the Northern Hemisphere, or in November in the Southern Hemisphere. It will brighten up to 11.5 mag in winter

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   7 43.32   20 16.1   3.051   2.071    12   14.0   3:29 (238, -8)  
Aug.  6   8  0.10   19 36.6   2.994   2.033    15   13.8   3:37 (242, -5)  

* 45P/Honda-Mrkos-Pajdusakova

Now it is 11.2 mag (July 4, Ken-ichi Kadota). It is brighter than originally predicted by 3 mag. It brightened up to 6.7 mag in early May (May 10, Mike Olason). Now it is fading rapidly. The condition is very bad in this apparition. It is observable only in the extremely low sky from mid May to mid July in the Northern Hemisphere, or from early June to early August in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  10 37.89   11 47.5   2.468   1.671    30   13.9  20:42 (104,  0)  
Aug.  6  10 54.70   10  7.3   2.586   1.756    27   14.3  20:33 (103, -2)  

* 41P/Tuttle-Giacobini-Kresak

The condition is worst in this apparition. It is not observable at all.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   9 38.22   15 24.0   2.162   1.213    15   14.4  20:42 (116, -9)  
Aug.  6  10  3.31   13 47.3   2.121   1.170    14   13.9  20:33 (114, -9)  

* 169P/NEAT

It brightened up to 12.8 mag from late June to early July (June 23, Thomas Lehmann). It is not observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   7 21.69   17  4.6   1.614   0.716    17   13.9   3:29 (244, -6)  
Aug.  6   7 55.34   15 36.3   1.712   0.791    16   14.9   3:37 (245, -7)  

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky. Now it is 15.9 mag (July 30A. Diepvens).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   6 15.73   29 10.0   6.829   6.009    33   14.0   3:29 (243, 13)  
Aug.  6   6 21.28   29  8.1   6.766   6.011    38   14.0   3:37 (247, 18)  

* 116P/Wild 4

Now it is 13.8 mag (July 19, Thomas Lehmann). It becomes too low to observe in mid August in the Northern Hemisphere, or in late September in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  11 52.06    0 58.6   2.687   2.199    51   14.2  20:42 ( 85,  8)  
Aug.  6  12  4.80   -0 32.5   2.746   2.202    48   14.3  20:33 ( 85,  6)  

* C/2021 T2 ( Fuls )

It is expected to brighten up to 13-14 mag in July. But actually, it is not detected, fainter than 17 mag (July 10, Martin Masek). In the Southern Hemisphere, it stays observable in good condition after this. In the Northern Hemisphere, it is not observable at all.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  11 11.41  -46 22.8   1.390   1.477    73   14.4  20:42 ( 49,-24)  
Aug.  6  11 50.63  -42 11.6   1.537   1.534    70   14.8  20:33 ( 52,-19)  

* C/2020 Y2 ( ATLAS )

Now it is 14.5 mag (June 19, ATLAS South Africa). It was expected to brighten up to 13 mag in spring. But actually, it is fainter than originally expected. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable until autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   6 47.33  -39 31.4   3.480   3.159    63   15.0   3:29 (300,-30)  
Aug.  6   6 48.30  -39 59.6   3.463   3.169    64   15.1   3:37 (303,-24)  

* 19P/Borrelly

It brightened up to 8.8 mag from winter to early spring (Jan. 31, Chris Wyatt). Now it is fading. It has already faded down to 13.5 mag (July 10, Ken-ichi Kadota). It locates extremely low in the Southern Hemisphere. It will be unobservable in August in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  10 46.38   30 56.3   3.115   2.317    31   15.3  20:42 (119, 12)  
Aug.  6  11  1.00   29 27.2   3.194   2.369    29   15.5  20:33 (118, 11)  

* C/2018 U1 ( Lemmon )

Now it is 15.2 mag (June 28, S. L. Ferreira). It stays at 15-16 mag for a long time. In the Southern Hemisphere, it stays observable in excellent condition for a long time. In the Northern Hemiphere, it is not observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  14 29.43  -49 25.4   5.079   5.400   103   15.4  20:42 ( 25, -2)  
Aug.  6  14 26.16  -49 11.5   5.205   5.421    96   15.4  20:33 ( 28, -4)  

* C/2022 L1 ( Catalina )

Now it is 16.5 mag (July 31, Toshihiko Ikemura, Hirohisa Sato). It is observable at 15-16 mag in good condition from July to August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 40.85   10 22.3   0.972   1.787   128   15.5  21:06 (  0, 66)  
Aug.  6  17  2.69   12 45.6   1.071   1.746   113   15.5  20:33 ( 20, 67)  

* C/2021 Y1 ( ATLAS )

Now it is 16.8 mag (July 28, J.-G. Bosch, J. Nicolas, F. Kugel). It is expected to brighten up to 12 mag from winter to summer in 2023. In the Northern Hemisphere, it stays observable in good condition until 2023 spring. It will be observable in good condition after August also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   4 40.14   38  9.7   4.199   3.701    54   15.8   3:29 (244, 35)  
Aug.  6   4 46.85   37 45.7   4.052   3.641    59   15.7   3:37 (247, 40)  

* 118P/Shoemaker-Levy 4

Now it is 18.0 mag (June 27, iTelescope Observatory, Siding Spring). It is expected to brighten very rapidly up to 11-12 mag in winter, and it will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   4 37.53   13 29.8   2.441   2.075    57   15.8   3:29 (270, 24)  
Aug.  6   4 53.13   13 45.3   2.357   2.049    60   15.7   3:37 (273, 28)  

* 61P/Shajn-Schaldach

Now it is 16.3 mag (July 29, Ken-ichi Kadota). It is expected to brighten up to 15 mag in autumn, and it will be observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   1 11.31    6  4.4   1.693   2.224   107   15.9   3:29 (325, 57)  
Aug.  6   1 18.32    6 20.6   1.609   2.209   112   15.8   3:37 (338, 60)  

* 119P/Parker-Hartley

Appearing in the morning sky. It will brighten up to 15 mag from summer to winter, and it stays observable in good condition. It locates somwwhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   5 21.35   19 10.8   2.920   2.329    45   15.9   3:29 (259, 18)  
Aug.  6   5 35.38   19 27.8   2.861   2.328    49   15.9   3:37 (261, 23)  

* C/2020 S4 ( PanSTARRS )

Appearing in the morning sky. It will brighten up to 14 mag in early 2023, and it will be observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   7  3.64   17 15.8   4.744   3.821    21   16.0   3:29 (247, -3)  
Aug.  6   7 13.31   17 17.4   4.675   3.791    26   15.9   3:37 (250,  2)  

* C/2021 A1 ( Leonard )

It brightened up to 3 mag from mid December to late December. Now it is fading. It has already faded down to 13.4 mag (May 28, Thomas Lehmann). It is observable in good condition in the Southern Hemisphere. It is getting observable again also in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  16  4.34  -25 55.3   2.760   3.351   117   16.0  20:42 ( 18, 27)  
Aug.  6  16  0.73  -24 57.5   2.956   3.435   109   16.2  20:33 ( 23, 26)  

* 152P/Helin-Lawrence

Now it is 16.4 mag (July 21, J.-C. Merlin). It will be fading gradually after this. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  19 28.79  -27 30.2   2.288   3.270   162   16.2  22:57 (  0, 28)  
Aug.  6  19 24.84  -27 49.9   2.335   3.282   154   16.3  22:25 (  0, 27)  

* 327P/Van Ness

Now it is 17.8 mag (July 3, Michael Jager). It will brighten rapidly up to 15 mag in September, and it will be observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   0 41.88   22  0.8   0.965   1.596   107   16.5   3:29 (321, 74)  
Aug.  6   0 56.61   19 54.2   0.893   1.582   111   16.2   3:37 (340, 74)  

* 246P/NEAT

Now it is 16.3 mag (July 1, Ken-ichi Kadota). It brightened up to 14 mag from 2020 to 2021. Now it is fading slowly. It is observable at 16.5-17 mag in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   0 52.48  -15  3.7   3.225   3.819   118   16.5   3:29 (343, 38)  
Aug.  6   0 52.42  -15 34.3   3.163   3.837   125   16.5   3:37 (354, 39)  

* C/2021 G2 ( ATLAS )

Now it is 16.8 mag (June 1, ATLAS South Africa). It will brighten up to 13 mag from 2024 to 2025.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   8 11.13  -24 29.3   8.271   7.567    43   16.5   3:29 (274,-40)  
Aug.  6   8 16.12  -24 46.7   8.239   7.531    43   16.5   3:37 (278,-34)  

* C/2020 H6 ( ATLAS )

Now it is 16.0 mag (Aug. 1, Toshihiko Ikemura, Hirohisa Sato). It stays observable at 16 mag from 2021 to 2022. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  15 23.05   42 10.4   5.240   5.267    85   16.5  20:42 (116, 67)  
Aug.  6  15 23.80   41 45.8   5.324   5.292    82   16.6  20:33 (115, 64)  

* C/2020 J1 ( SONEAR )

It brightened up to 12.3 mag from spring to summer in 2021 (June 15, 2021, Marco Goiato). Now it is fading. It has already faded down to 15.9 mag (July 19, ATLAS-MLO, Mauna Loa).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  12  1.85   29 51.3   5.982   5.354    47   16.6  20:42 (110, 26)  
Aug.  6  12  3.38   29 34.3   6.095   5.400    43   16.7  20:33 (111, 22)  

* C/2020 F5 ( MASTER )

It brightened up to 14 mag in 2021. Now it is fading. It has already faded down to 16.5 mag (July 3, Thomas Lehmann). It is observable at 16-17 mag in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   0  8.96   13  1.4   5.313   5.868   118   16.6   3:29 (353, 68)  
Aug.  6   0  6.50   13 31.5   5.258   5.904   125   16.6   3:10 (  0, 69)  

* C/2022 N1 ( Attard-Maury )

Now it is 16.9 mag (July 31, Toshihiko Ikemura, Hirohisa Sato). It will be fading rapidyly, and it will be fainter than 18 mag in late August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 54.95  -16 53.6   0.664   1.591   141   16.6  21:17 (  0, 38)  
Aug.  6  16 48.51  -14 33.5   0.790   1.559   119   16.9  20:33 ( 15, 39)  

* C/2021 X1 ( Maury-Attard )

Now it is 17.1 mag (Apr. 17, ATLAS South Africa). It will brighten up to 14 mag in 2023. In the Southern Hemisphere, it stays observable in good condition for a long time although it became extremely low temporarily in June. In the Northern Hemisphere, it is not observable until late August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   6 38.10  -10  5.0   4.998   4.281    40   16.8   3:29 (273,-14)  
Aug.  6   6 39.74  -10 25.4   4.902   4.241    44   16.7   3:37 (278, -7)  

* P/2022 L3 ( ATLAS )

Now it is 16.4 mag (July 23, ATLAS Chile). It will brighten up to 15 mag in autumn, and it will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   2 22.61    6  3.5   2.306   2.538    91   16.9   3:29 (303, 46)  
Aug.  6   2 29.42    7 13.7   2.206   2.520    95   16.7   3:37 (309, 52)  

* 157P/Tritton

Now it is 18.4 mag (July 14, B. T. Bolin, Z. T. F. Collaboration). It stays observable at 16 mag from summer to winter. In the Southern Hemisphere, it locates low until October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   5 29.62   30 18.0   2.206   1.629    43   16.8   3:29 (248, 22)  
Aug.  6   5 53.28   30  6.1   2.159   1.612    45   16.7   3:37 (249, 24)  

* 44P/Reinmuth 2

Now it is 17.0 mag (July 23, iTelescope Observatory, Mayhill). It will be observable at 16.5 mag in good condition from summer to autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   2 51.47   22 43.0   2.193   2.241    79   16.8   3:29 (276, 50)  
Aug.  6   3  1.35   23 35.9   2.134   2.259    83   16.8   3:37 (279, 56)  

* 107P/(4015) Wilson-Harrington

Now it is 16.9 mag (June 17, Giuseppe Pappa). It will brighten up to 16.5 mag in July. In 2022, it stays observable for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   2 47.47   22 40.1   0.411   1.029    80   16.8   3:29 (277, 51)  
Aug.  6   3 35.01   25 32.8   0.435   1.001    75   17.0   3:37 (271, 50)  

* C/2019 F1 ( ATLAS-Africano )

It brightened up to 14.2 mag in 2021 summer (July 18, 2021, Taras Prystavski). Now it is fading. It has already faded down to 16.6 mag (July 26, ATLAS Chile). In the Southern Hemisphere, it stays observable in good condition for a long time. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   2 21.39  -25 16.9   4.748   5.040   100   16.8   3:29 (325, 21)  
Aug.  6   2 21.46  -25 28.9   4.703   5.081   106   16.8   3:37 (333, 24)  

* 408P/2020 M7 ( Novichonok-Gerke )

Now it is 18.6 mag (July 29, Pan-STARRS 2, Haleakala). It will be observable at 16 mag in excellent condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   3 55.32    9 55.1   3.731   3.482    68   16.9   3:29 (280, 31)  
Aug.  6   4  2.47    9 42.1   3.637   3.479    73   16.8   3:37 (285, 36)  

* C/2020 O2 ( Amaral )

Now it is 16.1 mag (June 12, ATLAS-MLO, Mauna Loa). It was observed at 15 mag in 2021. Now it is fading. It stays observable at 16-17 mag for a while in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 53.77   30 43.1   4.971   5.509   117   17.1  21:21 (  0, 86)  
Aug.  6  17 50.54   30 41.0   5.048   5.534   113   17.2  20:51 (  0, 86)  

* C/2020 F2 ( ATLAS )

Now it is 17.3 mag (July 18, ATLAS-MLO, Mauna Loa). It stays observable at 17-18 mag for a long time until 2024.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  13 17.28    4 43.4   9.114   8.817    69   17.2  20:42 ( 75, 28)  
Aug.  6  13 16.99    4 40.0   9.226   8.818    63   17.2  20:33 ( 78, 24)  

* C/2021 S3 ( PanSTARRS )

It is expected to brighten up to 7 mag in early 2024. In the Southern Hemisphere, it stays observable in good condition for a long time. It will appear in the morning sky in mid August also in the Northern Hemisphere, but it stays low in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   5 50.98  -20  6.4   6.969   6.455    55   17.3   3:29 (288,-10)  
Aug.  6   5 55.24  -20 38.7   6.853   6.395    59   17.2   3:37 (292, -4)  

* 444P/2022 C4 ( WISE-PanSTARRS )

Now it is 17.8 mag (July 26, J. Nicolas, F. Kugel). It is observable in excellent condition. But it will be fading rapidly, and it will be fainter than 18 mag in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  15 16.79  -21  9.5   0.845   1.488   105   17.4  20:42 ( 30, 27)  
Aug.  6  15 31.27  -24 55.3   0.897   1.500   103   17.5  20:33 ( 30, 23)  

* C/2019 O3 ( Palomar )

Now it is 16.6 mag (July 29, ATLAS-MLO, Mauna Loa). Fading slowly. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 42.08   68 21.4   9.284   9.296    87   17.4  21:08 (180, 57)  
Aug.  6  17 34.52   68  6.2   9.304   9.309    87   17.4  20:33 (180, 57)  

* C/2021 T4 ( Lemmon )

Now it is 16.9 mag (July 29, Ken-ichi Kadota). It is expected to brighten up to 8 mag in 2023 July. In 2022, it stays observable in good condition while the comet will be brightening gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   3 33.96    7 22.5   4.782   4.605    73   17.5   3:29 (286, 33)  
Aug.  6   3 34.30    6 56.0   4.596   4.539    80   17.4   3:37 (293, 40)  

* C/2019 T3 ( ATLAS )

Now it is 17.3 mag (July 6, Catalina Sky Survey). It was observed at 16 mag from 2020 to 2021. Now it is fading. It will be fainter than 18 mag in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  22  0.96   11 51.6   6.100   6.938   142   17.4   1:33 (  0, 67)  
Aug.  6  21 56.30   11  5.8   6.073   6.962   149   17.5   1:00 (  0, 66)  

* 100P/Hartley 1

Now it is 17.4 mag (July 8, J.-G. Bosch, J. Nicolas, F. Kugel). It is observable at 17 mag from spring to summer. In the Northern Hemisphere, it becomes low in summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  12 33.59   -2 24.9   2.284   2.020    62   17.5  20:42 ( 76, 15)  
Aug.  6  12 44.69   -4 46.8   2.345   2.018    58   17.5  20:33 ( 75, 12)  

* 422P/2021 L1 ( Christensen )

It was observed at 17 mag in 2021. It is observable at 17-18 mag also in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   2 52.56    7 18.6   3.345   3.387    83   17.6   3:29 (294, 41)  
Aug.  6   2 55.62    8  8.4   3.263   3.406    89   17.6   3:37 (301, 48)  

* C/2020 U4 ( PanSTARRS )

Now it is 19.0 mag (July 26, P. Carson). It stays observable at 17-18 mag in 2022. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   2 50.02   29 28.3   5.540   5.419    77   17.6   3:29 (266, 53)  
Aug.  6   2 47.01   29 36.3   5.420   5.428    85   17.6   3:37 (271, 61)  

* 99P/Kowal 1

Now it is 17.3 mag (July 18, ATLAS-MLO, Mauna Loa). It will be unobservable in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  13 22.68   -9 12.9   4.865   4.724    76   17.6  20:42 ( 62, 20)  
Aug.  6  13 26.80   -9 40.1   4.968   4.726    70   17.7  20:33 ( 65, 17)  

* 255P/Levy

It has not been observed yet in this apparition. It will brighten very rapidly, and it is expected to brighten up to 15 mag in September. It is not observable in the Southern Hemisphere. It locates extremely low even in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   5 41.51   30 11.9   1.568   1.043    41   18.7   3:29 (246, 20)  
Aug.  6   6 20.89   29  5.7   1.541   0.987    38   17.7   3:37 (247, 19)  

* C/2021 QM45 ( PanSTARRS )

Now it is 17.5 mag (July 4, Michael Jager). In the Northern Hemisphere, it stays observable at 17 mag in good condition for a long time until winter. In the Southern Hemisphere, it stays extremely low for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   5  1.52   40 28.2   3.310   2.777    50   17.8   3:29 (240, 32)  
Aug.  6   5 17.29   41 19.8   3.248   2.774    53   17.7   3:37 (241, 35)  

* C/2020 F7 ( Lemmon )

It brightened up to 17 mag in early 2022. Now it is fading. It will be fainter than 18 mag in autumn. It is not observable in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   7 20.15  -45  4.6   5.999   5.662    65   17.7   3:29 (304,-37)  
Aug.  6   7 23.90  -46  4.3   6.002   5.679    66   17.7   3:37 (307,-32)  

* C/2020 U5 ( PanSTARRS )

Now it is 17.9 mag (July 22, Katsumi Yoshimoto). It started fading before the perihelion passage. It was predicted to stay at 16 mag for a long time. But actually, it will be fainter than 18 mag in autumn. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable until 2023.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  17 37.05   77 56.7   3.887   3.845    80   17.7  21:02 (180, 47)  
Aug.  6  17 25.57   75 30.9   3.869   3.859    81   17.8  20:33 (179, 50)  

* 395P/2020 H1 ( Catalina-NEAT )

Now it is 16.4 mag (June 30, Kunihiro Shima). It was observed at 17 mag in 2021. It is observable at 17-18 mag in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  23 27.92    0 20.8   3.447   4.212   133   17.8   2:59 (  0, 55)  
Aug.  6  23 26.46    0 13.9   3.388   4.222   140   17.8   2:30 (  0, 55)  

* (3200) Phaethon

It approached to Sun down to 0.14 a.u. on May 15. But it was not observable around that time. Appearing in the morning sky. In the Northern Hemisphere, it stays observable at 17-18 mag in good condition from July to November. In the Southern Hemisphere, it stays extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   4  0.35   38  1.0   1.683   1.506    62   17.8   3:29 (248, 42)  
Aug.  6   4  5.80   39  3.1   1.665   1.582    67   17.9   3:37 (248, 48)  

* C/2020 T2 ( Palomar )

It brightened up to 9.5 mag in early summer in 2021 (June 27, Marco Goiato). Now it is fading. It has already faded down to 17.3 mag (July 18, G. van Buitenen, J.-C. Merlin). In the Northern Hemisphere, it stays extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  23 18.58  -39  3.3   3.794   4.612   139   17.9   2:50 (  0, 16)  
Aug.  6  23 15.15  -39 50.0   3.818   4.671   143   18.0   2:19 (  0, 15)  

* C/2019 E3 ( ATLAS )

Now it is 17.3 mag (June 27, ATLAS South Africa). Very far object. It stays 18 mag for a long time from 2021 to 2026. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable at all.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   7 57.67  -62 35.1  10.719  10.618    81   17.9   3:29 (326,-44)  
Aug.  6   8  1.15  -62 54.6  10.727  10.609    80   17.9   3:37 (326,-40)  

* 378P/2019 E2 ( McNaught )

Now it is 18.8 mag (July 25, ATLAS South Africa). It stays 18 mag for a long time even after the perihelion passage.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   2 30.96   -5  6.3   4.902   5.053    92   18.0   3:29 (310, 36)  
Aug.  6   2 32.89   -5 18.4   4.826   5.078    98   17.9   3:37 (319, 41)  

* 325P/Yang-Gao

Now it is 18.8 mag (July 25, Toshihiko Ikemura, Hirohisa Sato). It was expected to be observable at 16 mag in good condition in spring. But actually, it is fainter than predicted by 2-3 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30  20 50.48   11 15.9   0.981   1.928   149   19.3   0:22 (  0, 66)  
Aug.  6  20 43.54   11 11.1   1.021   1.973   151   19.5  23:43 (  0, 66)  

* C/2014 F3 ( Sheppard-Trujillo )

Now it is 20.3 mg (Oct. 30, 2021, Pan-STARRS 1, Haleakala). At the discovery, it was expected to be observable at 16-17 mag for a long time from 2020 to 2022. It had been lost for a long time since 2015, but the recent observations are found. Actually, it brigthens up to 20-21 mag at best.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 30   0 54.24   10 51.6   5.777   6.194   109   21.4   3:29 (329, 63)  
Aug.  6   0 54.35   11  0.9   5.693   6.210   116   21.3   3:37 (347, 66)  

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