Weekly Information about Bright Comets (2022 Sept. 24: North)

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Updated on September 27, 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 8.8 mag (Sept. 18, Marco Goiato). It is observable at 8 mag for a long time from 2022 to 2023. In the Northern Hemisphere, it will be unobservable soon. Then it is not observable at the high light until 2023 summer. In the Southern Hemisphere, it stays observable for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  15 55.74  -30 33.3   2.362   2.105    63    8.3  19:18 ( 44,  7)  
Oct.  1  15 57.93  -32 48.2   2.420   2.062    57    8.3  19:08 ( 45,  3)  

* C/2022 P1 ( NEOWISE )

Bright new comet. Now it is very bright as 10.5 mag (Sept. 19, Katsumi Yoshimoto). It stays 10 mag until November. In the Southern Hemisphere, it stays observable in good condition for a while. In the Northern Hemisphere, it becomes low rapidly.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   0 27.61  -25 53.0   0.851   1.804   153   10.3   0:21 (  0, 30)  
Oct.  1  23 27.73  -34 18.0   0.875   1.764   140   10.1  22:42 (  0, 20)  

* 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)  
Sept.24  12  4.53  -27 55.4   2.212   1.403    27   11.2  19:18 ( 76,-32)  
Oct.  1  12 21.84  -32 28.7   2.260   1.474    29   11.5   4:30 (290,-32)  

* C/2022 E3 ( ZTF )

Now it is bright as 11.9 mag (Sept. 17, Chris Wyatt). 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 October to early February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  16  0.74   28 57.4   2.250   2.020    63   11.8  19:18 ( 97, 45)  
Oct.  1  15 56.50   27 56.1   2.257   1.940    58   11.6  19:08 ( 99, 41)  

* 73P/Schwassmann-Wachmann 3

Now it is 12.6 mag (Sept. 19, Chris Wyatt). It stays 11-12 mag to autumn. It stays observable in good condition in the Southern Hemisphere. It locates low in the Northern Hemisphere. Michael Jager detected several fragments at 17.5-19 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  16  4.55  -31 12.4   0.966   1.059    65   11.8  19:18 ( 42,  8)  
Oct.  1  16 47.12  -33 50.2   0.976   1.101    67   12.1  19:08 ( 36,  9)  

* C/2019 L3 ( ATLAS )

It brightened up to 8.3 mag in winter (Jan. 6, Toshiyuki Takahashi). Now it is fading. It has already faded down to 13.3 mag (Sept. 4, N. Paul, B. Lutkenhoner, E. Cortes). Appering in the morning sky.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   9 26.57   -9 59.0   4.961   4.240    39   11.9   4:24 (288,  8)  
Oct.  1   9 32.03  -11 26.0   4.933   4.274    44   12.0   4:30 (294, 12)  

* C/2020 V2 ( ZTF )

Now it is 12.4 mag (Sept. 16, S. Shurpakov). 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 became 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)  
Sept.24  10 40.17   53 45.1   3.796   3.351    56   12.1   4:24 (222, 27)  
Oct.  1  10 45.41   54 27.0   3.660   3.297    61   12.0   4:30 (223, 31)  

* 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)  
Sept.24  13 15.18   -2 47.2   1.964   1.060    18   12.3  19:18 ( 89, -5)  
Oct.  1  13 43.89   -5 25.0   1.971   1.077    19   12.5  19:08 ( 86, -4)  

* C/2021 E3 ( ZTF )

It brightened up to 9.3 mag in early summer (June 5, Chris Wyatt). Now it is fading. It has already faded down to 12.8 mag (Aug. 20, Chris Wyatt). In the Southen Hemisphere, it stays observable in good condition for a long time. 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)  
Sept.24  10 11.25  -39  8.4   2.780   2.212    46   12.4   4:24 (306,-17)  
Oct.  1  10 12.94  -39 19.1   2.817   2.263    47   12.5   4:30 (310,-12)  

* 81P/Wild 2

Appearing in the morning sky in the Northern Hemisphere. It will appear in the morning sky in November also 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)  
Sept.24  10  3.25   11 44.7   2.563   1.791    31   12.6   4:24 (265, 13)  
Oct.  1  10 21.52   10 11.4   2.501   1.762    34   12.4   4:30 (268, 15)  

* C/2019 T4 ( ATLAS )

Now it is bright as 12.8 mag (Aug. 28, Hiroshi Abe). 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)  
Sept.24  13 22.63   -3  0.0   5.262   4.335    20   12.6  19:18 ( 89, -3)  
Oct.  1  13 30.24   -3  2.2   5.303   4.347    15   12.6  19:08 ( 90, -5)  

* 118P/Shoemaker-Levy 4

Now it is 14.9 mag (Sept. 2, Thomas Lehmann). 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)  
Sept.24   6 41.61   12 46.0   1.790   1.902    80   13.5   4:24 (300, 54)  
Oct.  1   6 56.25   12 16.2   1.714   1.887    83   13.2   4:30 (306, 57)  

* C/2020 K1 ( PanSTARRS )

Now it is 13.6 mag (Sept. 19, 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)  
Sept.24  17 15.58   -6 20.4   3.843   3.771    78   13.3  19:18 ( 44, 38)  
Oct.  1  17 16.87   -8  1.0   3.918   3.734    72   13.3  19:08 ( 47, 34)  

* C/2019 U5 ( PanSTARRS )

Now it is 13.6 mag (Aug. 28, Hiroshi Abe). 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, although it becomes unobservable temporarily in October. In the Southern Hemisphere, it is not observable until mid December. But it will be observable in good condition in 2023.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  13 30.22   17 26.3   4.851   3.993    27   13.5  19:18 (104, 10)  
Oct.  1  13 32.25   16  8.9   4.853   3.967    24   13.5  19:08 (105,  6)  

* 29P/Schwassmann-Wachmann 1

Now it is 13.9 mag (Sept. 6. Ken-ichi Kadota).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   6 51.62   28 56.7   6.131   6.026    79   13.8   4:24 (272, 60)  
Oct.  1   6 54.27   28 56.7   6.022   6.029    85   13.8   4:30 (278, 67)  

* 22P/Kopff

Now it is 13.4 mag (Sept. 17, Thomas Lehmann). 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)  
Sept.24   1 25.28    0 46.2   1.396   2.361   159   13.9   1:16 (  0, 56)  
Oct.  1   1 18.90    0  0.9   1.418   2.403   166   14.1   0:42 (  0, 55)  

* 117P/Helin-Roman-Alu 1

Now it is 13.7 mag (Sept. 17, Thomas Lehmann). It stays observable at 13-14 mag for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  18 40.00  -31 25.9   2.761   3.064    97   14.0  19:18 ( 12, 23)  
Oct.  1  18 46.09  -31 10.6   2.859   3.069    92   14.0  19:08 ( 14, 22)  

* C/2022 R2 ( ATLAS )

Bright new comet. Now it is bright as 14.3 mag (Sept. 23, Michael Jager). Although it is a tiny comet, it will approach to Sun down to 0.63 a.u. on Oct. 25. In the Northern Hemisphere, it is observable until late October. In the Southern Hemisphere, it is not observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   8 54.73   25 36.4   1.055   0.905    52   14.7   4:24 (261, 34)  
Oct.  1   9 56.41   27 14.5   1.020   0.811    47   14.1   4:30 (256, 29)  

* C/2021 Y1 ( ATLAS )

Now it is 16.3 mag (Sept. 15, ATLAS-HKO, Haleakala). 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. In the Southern Hemisphere, it stays observable in good condition for a long time after this. It is fainter than this ephemeris recently.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   5 16.49   33  4.2   2.906   3.230    99   14.4   4:24 (279, 81)  
Oct.  1   5 16.97   31 57.5   2.740   3.173   106   14.2   4:30 (325, 86)  

* C/2020 R7 ( ATLAS )

Now it is 14.3 mag (Aug. 31, Ken-ichi Kadota). The brightness evolution is slower than originally expected. It stays 14-15 mag for a long time. It locates extremely low in the Northern Hemisphere. In the Southern Hemisphere, it will be unobservable temporarily in November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  16 42.95  -31  2.1   3.091   2.957    72   14.3  19:18 ( 36, 13)  
Oct.  1  16 44.88  -29  8.6   3.218   2.960    66   14.4  19:08 ( 40, 13)  

* 116P/Wild 4

Now it is 13.8 mag (Aug. 20, Chris Wyatt). It is already unobservable in the Northern Hemisphere. It will be unobservable soon also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  13 38.79  -11  6.2   3.105   2.250    26   14.8  19:18 ( 79, -5)  
Oct.  1  13 52.85  -12 30.9   3.147   2.261    23   14.8  19:08 ( 79, -6)  

* C/2020 Y2 ( ATLAS )

Now it is 14.9 mag (Sept. 4, 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 stays extremely low for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   6 28.36  -47 29.1   3.197   3.273    85   15.2   4:24 (341,  4)  
Oct.  1   6 19.03  -48 54.9   3.153   3.294    89   15.2   4:30 (348,  5)  

* C/2020 S4 ( PanSTARRS )

Now it is 15.8 mag (Aug. 31, Ken-ichi Kadota). 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)  
Sept.24   8 18.93   16 48.0   4.045   3.608    57   15.4   4:24 (275, 37)  
Oct.  1   8 27.62   16 41.7   3.938   3.585    62   15.3   4:30 (279, 42)  

* P/2022 L3 ( ATLAS )

Now it is 15.3 mag (Sept. 6, Ken-ichi Kadota). It stays 15 mag and observable in excellent condition until December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   2 51.29   15 29.0   1.620   2.440   135   15.4   2:42 (  0, 71)  
Oct.  1   2 49.39   16 41.5   1.561   2.433   142   15.3   2:13 (  0, 72)  

* 9P/Tempel 1

Now it is 16.4 mag (Sept. 13, ATLAS South Africa). 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)  
Sept.24  22 21.13  -28 13.6   1.505   2.382   142   15.4  22:08 (  0, 27)  
Oct.  1  22 18.36  -27 40.9   1.597   2.422   136   15.7  21:38 (  0, 27)  

* 327P/Van Ness

Now it is 14.0 mag (Sept. 22, Michael Jager). It brightened rapidly as predicted. It will be fading after this, and it will be fainter than 18 mag in December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   2 11.01  -16  6.7   0.644   1.572   144   15.5   2:01 (  0, 39)  
Oct.  1   2 14.88  -22 15.9   0.662   1.584   143   15.6   1:38 (  0, 33)  

* 119P/Parker-Hartley

Now it is 15.3 mag (Sept. 16, ATLAS-HKO, Haleakala). It stays observable in good condition at 15 mag from summer to winter. It locates somwwhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   7  4.83   19 38.6   2.390   2.347    75   15.6   4:24 (285, 53)  
Oct.  1   7 15.60   19 30.4   2.317   2.354    79   15.5   4:30 (290, 58)  

* C/2022 A2 ( PanSTARRS )

It is expected to brighten up to 12.5 mag in winter. In the Northern Hemisphere, it will become observable in October. Then it stays observable in good condition after that. In the Southern Hemisphere, it is not observable until 2023 June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  11 44.32   16 40.0   3.475   2.536    17   15.7   4:24 (246, -4)  
Oct.  1  11 52.88   17 20.0   3.376   2.477    22   15.6   4:30 (250,  1)  

* 61P/Shajn-Schaldach

Now it is 15.6 mag (Sept. 6, Ken-ichi Kadota). It stays 15.5 mag until November, and it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   1 36.71    4 10.7   1.182   2.138   156   15.7   1:27 (  0, 59)  
Oct.  1   1 34.50    3 22.1   1.154   2.133   163   15.6   0:58 (  0, 59)  

* 71P/Clark

It will brighten up to 13 mag in winter. But the condition is bad. It is not observable until February in the Southern Hemisphere, or until May in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  13  8.80   -3 28.1   2.878   1.940    16   15.9  19:18 ( 90, -6)  
Oct.  1  13 23.67   -5 18.3   2.861   1.906    14   15.7  19:08 ( 89, -8)  

* C/2018 U1 ( Lemmon )

Now it is 16.5 mag (Aug. 17, Thomas Lehmann). It stays at 15-16 mag for a long time. In the Southern Hemisphere, it stays observable in excellent condition for a long time, although it becomes extremely low temporarily in November. In the Northern Hemiphere, it is not observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  14 27.21  -49 22.1   6.039   5.574    58   15.9  19:18 ( 41,-18)  
Oct.  1  14 29.74  -49 40.7   6.136   5.598    53   15.9  19:08 ( 42,-20)  

* C/2021 X1 ( Maury-Attard )

Now it is 15.4 mag (Sept. 16, ATLAS-MLO, Mauna Loa). It will brighten up to 14 mag in 2023. 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)  
Sept.24   6 37.62  -15 13.0   3.994   3.970    81   16.0   4:24 (324, 32)  
Oct.  1   6 34.04  -16 14.2   3.846   3.934    87   15.9   4:30 (334, 35)  

* C/2022 L1 ( Catalina )

Brightened rapidly. It brightened up to 14.0 mag in early September (Sept. 2, Michael Jager). Now it is 16.4 mag (Sept. 10, Ken-ichi Kadota). It will be fading after this. In the Northern Hemisphere, it stays observable for a long time, although it becomes extremely low in November. In the Southern Hemisphere, it becomes unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  15 23.48   16 38.4   1.993   1.593    52   16.0  19:18 ( 88, 32)  
Oct.  1  15 20.50   16 52.2   2.095   1.592    47   16.1  19:08 ( 91, 28)  

* C/2021 T4 ( Lemmon )

Now it is 16.0 mag (Sept. 16, ATLAS-MLO, Mauna Loa). 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)  
Sept.24   3 12.00    0 57.9   3.328   4.074   132   16.2   3:03 (  0, 56)  
Oct.  1   3  4.00   -0 21.9   3.181   4.007   140   16.0   2:27 (  0, 55)  

* 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)  
Sept.24   8 49.10  -28 17.3   7.825   7.280    53   16.2   4:24 (308,  3)  
Oct.  1   8 53.18  -28 58.2   7.740   7.245    57   16.1   4:30 (313,  7)  

* 408P/2020 M7 ( Novichonok-Gerke )

Now it is 16.6 mag (Sept. 10, Ken-ichi Kadota). It will be observable at 16-17 mag in excellent condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   4 36.12    6  8.1   2.973   3.468   111   16.4   4:24 (359, 61)  
Oct.  1   4 37.82    5 22.0   2.889   3.468   117   16.3   4:00 (  0, 60)  

* 157P/Tritton

Now it is 16.1 mag (Sept. 23, Michael Jager). It stays observable at 16 mag from summer to winter. In the Southern Hemisphere, it locates low until October. Michael Jager discovered a 18-mag fragment.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   8 27.94   22  3.0   1.888   1.579    56   16.4   4:24 (268, 38)  
Oct.  1   8 46.95   20  9.9   1.854   1.587    58   16.3   4:30 (272, 40)  

* 395P/2020 H1 ( Catalina-NEAT )

Now it is 15.9 mag (Sept. 5, Michael Jager). It continued brightening even after the perihelion passage. It stays observable at 16 mag in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  23  5.93   -2  4.5   3.316   4.296   165   16.5  22:53 (  0, 53)  
Oct.  1  23  3.08   -2 27.4   3.362   4.308   158   16.5  22:22 (  0, 53)  

* 285P/LINEAR

It brightened by 6 mag in outburst up to 14.6 mag (Aug. 13, ATLAS-MLO, Mauna Loa). Now it is fading. But it is bright as 15.5 mag still now (Sept. 4, ATLAS-MLO, Mauna Loa). It stays observable in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  18 40.43    3  9.5   1.624   2.046    99   16.5  19:18 ( 23, 56)  
Oct.  1  18 48.55    1 26.6   1.652   2.010    95   16.7  19:08 ( 25, 54)  

* C/2020 F5 ( MASTER )

It brightened up to 14 mag in 2021. Now it is fading. It has already faded down to 16.1 mag (Sept. 8, ATLAS-MLO, Mauna Loa). It is observable at 16-17 mag in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  23 39.95   15 14.3   5.189   6.160   164   16.5  23:27 (  0, 70)  
Oct.  1  23 35.74   15 15.9   5.236   6.197   162   16.5  22:55 (  0, 70)  

* C/2021 S3 ( PanSTARRS )

Now it is 16.1 mag (Sept. 13, J.-C. Merlin). 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. In the Northern Hemisphere, it stays low in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   6 17.85  -26 20.7   5.948   5.970    86   16.6   4:24 (335, 24)  
Oct.  1   6 19.50  -27 23.8   5.816   5.908    90   16.5   4:30 (342, 25)  

* 246P/NEAT

Now it is 15.6 mag (Sept. 8, ATLAS-MLO, Mauna Loa). It brightened up to 14 mag from 2020 to 2021. Now it is fading slowly. It is observable at 16-17 mag in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   0 31.04  -19 30.0   3.007   3.960   159   16.6   0:22 (  0, 36)  
Oct.  1   0 26.30  -19 49.8   3.036   3.978   157   16.6  23:45 (  0, 35)  

* 44P/Reinmuth 2

Now it is 17.0 mag (Sept. 1, ATLAS-MLO, Mauna Loa). It will be observable at 16-17 mag in good condition from summer to autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   3 41.75   27 27.1   1.735   2.409   120   16.6   3:32 (  0, 83)  
Oct.  1   3 42.02   27 38.1   1.690   2.433   127   16.6   3:05 (  0, 83)  

* C/2019 T3 ( ATLAS )

Now it is 16.7 mag (Sept. 4, Purple Mountain Observatory). It stayed bright for a while even after the perihelion passage, but it will be fading after this. It will be fainter than 18 mag in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  21 25.31    4 25.2   6.336   7.140   140   16.9  21:12 (  0, 59)  
Oct.  1  21 22.11    3 26.3   6.437   7.166   133   16.9  20:42 (  0, 58)  

* 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 16.8 mag (Sept. 12, 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)  
Sept.24   2  2.55  -27  0.5   4.563   5.373   140   16.9   1:53 (  0, 28)  
Oct.  1   1 57.64  -27  2.2   4.583   5.416   142   16.9   1:21 (  0, 28)  

* C/2021 F1 ( Lemmon-PanSTARRS )

It brightened up to 9.3 mag from spring to early summer (Mar. 24, Michael Jager). It stayed bright for a while even after the perihelion passaage. But it is fading rapidly now. It has already faded down to 17.1 mag (Aug. 9, iTelescope Observatory, Siding Spring). However, Thomas Lehmann reported it is bright as 13.8 mag on Sept. 2. 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)  
Sept.24   5 40.52  -75 34.5   2.510   2.721    91   16.9   4:24 (356,-21)  
Oct.  1   5 40.99  -78 42.9   2.629   2.803    89   17.3   4:30 (358,-24)  

* C/2020 H6 ( ATLAS )

Now it is 16.1 mag (Sept. 16, S. Shurpakov). 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)  
Sept.24  15 47.08   38 45.3   5.831   5.474    64   17.0  19:18 (112, 46)  
Oct.  1  15 52.51   38 25.5   5.887   5.501    62   17.0  19:08 (112, 43)  

* C/2019 O3 ( Palomar )

Now it is 16.5 mag (Sept. 7, 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)  
Sept.24  17  8.77   65  3.5   9.443   9.402    84   17.0  19:18 (156, 53)  
Oct.  1  17  8.78   64 36.4   9.461   9.416    84   17.1  19:08 (153, 52)  

* P/2022 P2 ( ZTF )

Now it is 16.9 mag (Aug. 31, Michael Jager). It stays observable at 17 mag until winter. In the Southern Hemisphere, it locates extremely low until autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   8 29.04   20 59.7   2.493   2.107    56   17.2   4:24 (269, 37)  
Oct.  1   8 42.33   19 43.5   2.449   2.128    59   17.2   4:30 (273, 41)  

* 402P/2020 Q3 ( LINEAR )

It brightened up to 15.3 mag in last winter (Jan. 12, H. Nohara). Now it is fading. It will be observable at 17 mag in good condition in next winter. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   9 28.35   18 21.7   4.942   4.251    42   17.3   4:24 (264, 24)  
Oct.  1   9 35.45   18 16.6   4.880   4.266    47   17.3   4:30 (267, 29)  

* C/2022 L2 ( ATLAS )

Now it is 17.0 mag (Sept. 12, E. Bryssinck). It is expected to brighten up to 11-12 mag in 2024. In the Northern Hemisphere, it stays observable in good condition for a long time until 2023 autumn, although it becomes temporarily low in December. In the Southern Hemisphere, it becomes unobservable in October. But it will be observable in excellent condition at the high light.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  17 58.72   25 24.3   5.691   5.766    89   17.4  19:18 ( 70, 68)  
Oct.  1  17 57.00   24 15.6   5.727   5.715    84   17.4  19:08 ( 73, 64)  

* C/2020 U4 ( PanSTARRS )

Now it is 17.5 mag (Sept. 10, Ken-ichi Kadota). 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)  
Sept.24   2  2.14   28 39.2   4.695   5.499   139   17.4   1:53 (  0, 84)  
Oct.  1   1 52.70   28  6.1   4.638   5.511   147   17.4   1:16 (  0, 83)  

* P/2021 N2 ( Fuls )

It brightened very rapidly up to 15.5 mag from last autumn to last winter (Nov. 2, 2021, Toshihiko Ikemura, Hirohisa Sato). Now it is fading. It has already faded down to 17.1 mag (Sept. 13, J.-C. Merlin).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   6 37.32   14  6.6   4.243   4.215    81   17.4   4:24 (299, 55)  
Oct.  1   6 41.15   13 40.2   4.157   4.232    87   17.4   4:30 (309, 60)  

* C/2020 U5 ( PanSTARRS )

Now it is 17.9 mag (Sept. 12, E. Bryssinck). 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)  
Sept.24  17 31.74   55 53.8   3.923   3.980    85   17.4  19:18 (145, 61)  
Oct.  1  17 37.37   53  6.2   3.963   4.000    84   17.5  19:08 (138, 61)  

* C/2021 QM45 ( PanSTARRS )

Now it is 17.3 mag (Sept. 17, Catalina Sky Survey). 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)  
Sept.24   7  2.31   45 32.9   2.805   2.806    79   17.5   4:24 (238, 60)  
Oct.  1   7 15.27   45 58.7   2.742   2.818    83   17.4   4:30 (236, 64)  

* C/2022 Q2 ( ATLAS )

Now it is 16.7 mag (Sept. 22, Michael Jager). It stays observable at 17-18 mag until next summer. It may be brighter than this ephemeris.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   1 46.56   -7 51.9   1.378   2.316   152   17.8   1:38 (  0, 47)  
Oct.  1   1 13.33  -10  6.7   1.283   2.258   162   17.6   0:38 (  0, 45)  

* (3200) Phaethon

It approached to Sun down to 0.14 a.u. on May 15. But it was not observable around that time. 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)  
Sept.24   3 46.89   45 45.4   1.376   1.995   113   17.7   3:38 (180, 79)  
Oct.  1   3 32.04   46 13.7   1.335   2.040   121   17.6   2:56 (180, 79)  

* 107P/(4015) Wilson-Harrington

Now it is 17.4 mag (Aug. 9, Michael Jager). In 2022, it stays observable at 17 mag for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   7 13.80   25 27.1   0.698   1.053    74   17.7   4:24 (275, 55)  
Oct.  1   7 31.84   24 27.3   0.726   1.093    76   17.7   4:30 (279, 57)  

* C/2021 A1 ( Leonard )

It brightened up to 3 mag from mid December to late December. Now it is fading. It is observable in good condition in the Southern Hemisphere. No observations have been reported since June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  16  6.20  -21 37.1   4.353   4.000    63   17.7  19:18 ( 49, 15)  
Oct.  1  16  9.55  -21 26.1   4.537   4.078    56   17.9  19:08 ( 51, 13)  

* C/2020 O2 ( Amaral )

Now it is 16.8 mag (Sept. 14, 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)  
Sept.24  17 46.35   28 47.4   5.690   5.719    86   17.7  19:18 ( 82, 67)  
Oct.  1  17 48.32   28 28.2   5.785   5.747    82   17.8  19:08 ( 84, 64)  

* 152P/Helin-Lawrence

Now it is 17.9 mag (Sept. 2, J. Drummond). 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)  
Sept.24  19 23.15  -28 21.9   2.931   3.373   107   17.7  19:18 (  2, 27)  
Oct.  1  19 26.88  -28 14.3   3.041   3.387   101   17.9  19:08 (  5, 27)  

* 244P/Scotti

It is observable at 17 mag in good condition in winter. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   6 19.26   25 39.4   3.861   3.926    86   17.9   4:24 (285, 66)  
Oct.  1   6 23.56   25 41.2   3.757   3.925    92   17.8   4:30 (294, 71)  

* C/2022 P3 ( ZTF )

Now it is 17.5 mag (Aug. 25, C. Gerhard). In the Northern Hemisphere, it is observable at 17-18 mag in excellent condition in autumn. In the Southern Hemisphere, it is only observable in extremely low sky in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   7 14.96   38 54.9   2.691   2.637    76   17.9   4:24 (251, 58)  
Oct.  1   7 25.40   41  9.6   2.618   2.656    81   17.8   4:30 (247, 62)  

* 442P/2022 G1 ( McNaught )

Now it is 17.3 mag (Sept. 16, ATLAS-MLO, Mauna Loa). It stays observable at 18 mag in good condition from August to September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24  23 39.05   -9  7.2   1.348   2.341   168   17.8  23:26 (  0, 46)  
Oct.  1  23 35.24   -9  2.1   1.375   2.349   162   17.9  22:54 (  0, 46)  

* 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)  
Sept.24   8 19.88  -66 53.1  10.732  10.551    76   17.9   4:24 (340,-20)  
Oct.  1   8 20.94  -67 39.1  10.727  10.543    76   17.9   4:30 (343,-19)  

* 422P/2021 L1 ( Christensen )

It was observed at 17 mag in 2021. It was expected to be observable at 17-18 mag also in 2022. But actually, it is much fainter than last year by 3 mag, 20.3 mag (Sept. 5, W. Hasubick).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Sept.24   2 51.59   13 12.1   2.758   3.550   136   19.7   2:42 (  0, 68)  
Oct.  1   2 47.01   13 49.1   2.714   3.572   143   19.7   2:10 (  0, 69)  

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