Weekly Information about Bright Comets (2022 Oct. 1: North)

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Updated on October 9, 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. 25, Chris Wyatt). It is observable at 8 mag for a long time from 2022 to 2023. In the Southern Hemisphere, it stays observable for a long time, although it becomes low temporarily from November to December. In the Northern Hemisphere, it is not observable until 2023 summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  15 57.93  -32 48.2   2.420   2.062    57    8.3  19:08 ( 45,  3)  
Oct.  8  16  1.29  -35  2.0   2.471   2.021    52    8.3  18:58 ( 46,  0)  

* C/2022 P1 ( NEOWISE )

Now it is very bright as 10.7 mag (Oct. 2, Marco Goiato). It stays 10 mag until November. In the Northern Hemisphere, it becomes unobservable soon. In the Southern Hemisphere, it becomes unobservable temporarily from December to January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  23 27.73  -34 18.0   0.875   1.764   140   10.1  22:42 (  0, 20)  
Oct.  8  22 26.85  -39 34.0   0.962   1.728   123   10.0  21:15 (  0, 15)  

* C/2022 E3 ( ZTF )

Now it is bright as 11.6 mag (Oct. 2, Osamu Miyazaki). 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 is not observable until early February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  15 56.50   27 56.1   2.257   1.940    58   11.6  19:08 ( 99, 41)  
Oct.  8  15 53.45   27  0.9   2.253   1.860    54   11.5  18:58 (100, 36)  

* C/2021 P4 ( ATLAS )

It brightened up to 10.4 mag from June to July (July 22, Ken-ichi Kadota). Appearing in the morning sky in the Souther Hemisphere. It will never be observable again in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  12 21.84  -32 28.7   2.260   1.474    29   11.5   4:30 (290,-32)  
Oct.  8  12 40.08  -36 48.3   2.312   1.548    31   11.8   4:36 (296,-31)  

* C/2020 V2 ( ZTF )

Now it is 12.0 mag (Oct. 3, Osamu Miyazaki). 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)  
Oct.  1  10 45.41   54 27.0   3.660   3.297    61   12.0   4:30 (223, 31)  
Oct.  8  10 50.59   55 21.8   3.518   3.244    66   11.8   4:36 (223, 35)  

* C/2019 L3 ( ATLAS )

It brightened up to 8.3 mag in last winter (Jan. 6, Toshiyuki Takahashi). Now it is fading. But it is bright as 11.0 mag still now (Sept. 30, Thomas Lehmann).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   9 32.03  -11 26.0   4.933   4.274    44   12.0   4:30 (294, 12)  
Oct.  8   9 37.14  -12 54.5   4.900   4.308    48   12.0   4:36 (299, 16)  

* 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)  
Oct.  1  16 47.12  -33 50.2   0.976   1.101    67   12.1  19:08 ( 36,  9)  
Oct.  8  17 31.25  -35 28.9   1.000   1.148    70   12.4  18:58 ( 31, 11)  

* 81P/Wild 2

Now it is 12.1 mag (Oct. 3, Ken-ichi Kadota). It will appear in the morning sky in November also in the Southern Hemisphere. It stays 11-12 mag until spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  10 21.52   10 11.4   2.501   1.762    34   12.4   4:30 (268, 15)  
Oct.  8  10 39.92    8 32.8   2.440   1.735    36   12.2   4:36 (272, 17)  

* 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)  
Oct.  1  13 43.89   -5 25.0   1.971   1.077    19   12.5  19:08 ( 86, -4)  
Oct.  8  14 12.60   -7 55.9   1.988   1.102    19   12.9  18:58 ( 82, -3)  

* 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 15.1 mag (Oct. 6, ATLAS Chile). In the Southen Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it will be observable after November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  10 12.94  -39 19.1   2.817   2.263    47   12.5   4:30 (310,-12)  
Oct.  8  10 13.83  -39 37.3   2.841   2.317    49   12.7   4:36 (314, -8)  

* 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)  
Oct.  1  13 30.24   -3  2.2   5.303   4.347    15   12.6  19:08 ( 90, -5)  
Oct.  8  13 37.91   -3  4.0   5.334   4.360    11   12.6  18:58 ( 91, -7)  

* 118P/Shoemaker-Levy 4

Now it is 14.7 mag (Sept. 29, Katsumi Yoshimoto). 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)  
Oct.  1   6 56.25   12 16.2   1.714   1.887    83   13.2   4:30 (306, 57)  
Oct.  8   7 10.42   11 42.6   1.639   1.873    86   12.9   4:36 (313, 59)  

* C/2020 K1 ( PanSTARRS )

Now it is 13.1 mag (Oct. 2, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct.  1  17 16.87   -8  1.0   3.918   3.734    72   13.3  19:08 ( 47, 34)  
Oct.  8  17 18.91   -9 37.7   3.991   3.697    65   13.3  18:58 ( 49, 30)  

* C/2019 U5 ( PanSTARRS )

Now it is 13.7 mag (Sept. 24, 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)  
Oct.  1  13 32.25   16  8.9   4.853   3.967    24   13.5  19:08 (105,  6)  
Oct.  8  13 34.45   14 54.6   4.843   3.943    23   13.5  18:58 (106,  2)  

* 29P/Schwassmann-Wachmann 1

Now it is 13.6 mag (Sept. 30. Hiroshi Abe).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   6 54.27   28 56.7   6.022   6.029    85   13.8   4:30 (278, 67)  
Oct.  8   6 56.39   28 57.4   5.913   6.031    91   13.7   4:36 (285, 73)  

* C/2022 R2 ( ATLAS )

Bright new comet. Now it is bright as 12.4 mag (Oct. 2, 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)  
Oct.  1   9 56.36   27 14.9   1.024   0.813    47   14.2   4:30 (256, 29)  
Oct.  8  11  2.14   26 48.6   1.034   0.732    42   13.7   4:36 (252, 23)  

* C/2021 Y1 ( ATLAS )

Now it is 15.2 mag (Sept. 28, D. Buczynski). 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)  
Oct.  1   5 16.97   31 57.5   2.740   3.173   106   14.2   4:30 (325, 86)  
Oct.  8   5 16.12   30 40.2   2.577   3.116   113   14.0   4:11 (  0, 86)  

* 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)  
Oct.  1  18 46.09  -31 10.6   2.859   3.069    92   14.0  19:08 ( 14, 22)  
Oct.  8  18 53.00  -30 53.8   2.958   3.074    87   14.1  18:58 ( 17, 22)  

* 22P/Kopff

Now it is 14.2 mag (Sept. 25, 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)  
Oct.  1   1 18.90    0  0.9   1.418   2.403   166   14.1   0:42 (  0, 55)  
Oct.  8   1 12.30   -0 40.9   1.452   2.446   172   14.3   0:08 (  0, 54)  

* C/2020 R7 ( ATLAS )

Now it is 15.0 mag (Oct. 2, 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)  
Oct.  1  16 44.88  -29  8.6   3.218   2.960    66   14.4  19:08 ( 40, 13)  
Oct.  8  16 47.57  -27 25.7   3.340   2.964    59   14.5  18:58 ( 44, 12)  

* (65803) Didymos

Due to the DART spacecraft impact to its satellite Dimorphos on Sept. 26, the cometary activity was detected. Now it is bright as 12.9 mag (Sept. 28, John Drummond). It stays bright and observable in good condition until mid January

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   4 11.64  -30  3.1   0.072   1.036   117   14.8   3:31 (  0, 25)  
Oct.  8   5 27.86  -21 12.3   0.072   1.023   107   15.1   4:21 (  0, 34)  

* 116P/Wild 4

Now it is 13.8 mag (Aug. 20, Chris Wyatt). It will be fading after this. Now it is not observable. It will be observable agin at 16 mag in January in the Southern Hemisphere, or in February in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  13 52.85  -12 30.9   3.147   2.261    23   14.8  19:08 ( 79, -6)  
Oct.  8  14  7.05  -13 52.9   3.186   2.273    19   14.9  18:58 ( 78, -8)  

* C/2020 Y2 ( ATLAS )

Now it is 15.1 mag (Sept. 28, ATLAS South Africa). It was expected to brighten up to 13 mag in spring. But actually, it was 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)  
Oct.  1   6 19.03  -48 54.9   3.153   3.294    89   15.2   4:30 (348,  5)  
Oct.  8   6  7.27  -50 18.3   3.111   3.315    92   15.2   4:36 (356,  5)  

* C/2020 S4 ( PanSTARRS )

Now it is 16.7 mag (Oct. 6, A. Diepvens). It will brighten up to 14 mag in early 2023, and it will be observable in good condition. It is fainter than this ephemeris recently.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   8 27.62   16 41.7   3.938   3.585    62   15.3   4:30 (279, 42)  
Oct.  8   8 36.02   16 36.1   3.828   3.564    67   15.2   4:36 (284, 47)  

* P/2022 L3 ( ATLAS )

Now it is 15.3 mag (Sept. 27, Michael Jager). 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)  
Oct.  1   2 49.39   16 41.5   1.561   2.433   142   15.3   2:13 (  0, 72)  
Oct.  8   2 46.09   17 53.5   1.511   2.427   149   15.2   1:42 (  0, 73)  

* 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)  
Oct.  1  11 52.88   17 20.0   3.376   2.477    22   15.6   4:30 (250,  1)  
Oct.  8  12  1.91   18  6.0   3.266   2.418    26   15.4   4:36 (252,  6)  

* 119P/Parker-Hartley

Now it is 15.1 mag (Sept. 30, Hiroshi Abe). 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)  
Oct.  1   7 15.60   19 30.4   2.317   2.354    79   15.5   4:30 (290, 58)  
Oct.  8   7 25.63   19 21.8   2.242   2.361    84   15.5   4:36 (297, 62)  

* 61P/Shajn-Schaldach

Now it is 15.1 mag (Sept. 30, 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)  
Oct.  1   1 34.50    3 22.1   1.154   2.133   163   15.6   0:58 (  0, 59)  
Oct.  8   1 31.46    2 31.6   1.138   2.129   169   15.6   0:27 (  0, 58)  

* 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)  
Oct.  1  13 23.67   -5 18.3   2.861   1.906    14   15.7  19:08 ( 89, -8)  
Oct.  8  13 39.07   -7  9.1   2.842   1.873    11   15.6  18:58 ( 88, -9)  

* 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)  
Oct.  1   2 14.88  -22 15.9   0.662   1.584   143   15.6   1:38 (  0, 33)  
Oct.  8   2 16.97  -27 37.7   0.693   1.599   141   15.8   1:12 (  0, 28)  

* 9P/Tempel 1

Now it is 15.8 mag (Oct. 2, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct.  1  22 18.36  -27 40.9   1.597   2.422   136   15.7  21:38 (  0, 27)  
Oct.  8  22 17.02  -26 59.9   1.696   2.462   130   16.0  21:09 (  0, 28)  

* C/2021 X1 ( Maury-Attard )

Now it is 15.1 mag (Oct. 6, 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)  
Oct.  1   6 34.04  -16 14.2   3.846   3.934    87   15.9   4:30 (334, 35)  
Oct.  8   6 29.22  -17 19.3   3.699   3.898    93   15.7   4:36 (346, 36)  

* C/2021 T4 ( Lemmon )

Now it is 15.4 mag (Sept. 24, X. Gao, Q.-Z. Ye). 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)  
Oct.  1   3  4.00   -0 21.9   3.181   4.007   140   16.0   2:27 (  0, 55)  
Oct.  8   2 54.60   -1 48.0   3.051   3.939   148   15.9   1:50 (  0, 53)  

* C/2018 U1 ( Lemmon )

Now it is 17.1 mag (Sept. 30, J.-C. Merlin). 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)  
Oct.  1  14 29.74  -49 40.7   6.136   5.598    53   15.9  19:08 ( 42,-20)  
Oct.  8  14 32.65  -50  3.4   6.225   5.622    49   16.0  18:58 ( 43,-22)  

* C/2021 G2 ( ATLAS )

Now it is 16.6 mag (Oct. 1, ATLAS Chile). 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)  
Oct.  1   8 53.18  -28 58.2   7.740   7.245    57   16.1   4:30 (313,  7)  
Oct.  8   8 57.02  -29 41.2   7.651   7.209    60   16.1   4:36 (318, 10)  

* C/2022 L1 ( Catalina )

Brightened rapidly. It brightened up to 14.0 mag in early September (Sept. 2, Michael Jager). Now it is 16.0 mag (Sept. 26, 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. It is not observable after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  15 20.50   16 52.2   2.095   1.592    47   16.1  19:08 ( 91, 28)  
Oct.  8  15 18.58   17  9.1   2.182   1.597    42   16.3  18:58 ( 94, 24)  

* 408P/2020 M7 ( Novichonok-Gerke )

Now it is 16.6 mag (Sept. 26, ATLAS-HKO, Haleakala). 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)  
Oct.  1   4 37.82    5 22.0   2.889   3.468   117   16.3   4:00 (  0, 60)  
Oct.  8   4 38.59    4 33.3   2.810   3.468   123   16.2   3:34 (  0, 60)  

* 157P/Tritton

Now it is 16.1 mag (Sept. 23, Michael Jager). It stays observable at 16 mag from summer to winter. It will be getting higher after this also in the Southern Hemisphere. Michael Jager discovered a 18-mag fragment.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   8 46.95   20  9.9   1.854   1.587    58   16.3   4:30 (272, 40)  
Oct.  8   9  4.99   18 10.4   1.821   1.598    61   16.3   4:36 (277, 42)  

* C/2021 S3 ( PanSTARRS )

Now it is 16.2 mag (Oct. 6, ATLAS Chile). 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)  
Oct.  1   6 19.50  -27 23.8   5.816   5.908    90   16.5   4:30 (342, 25)  
Oct.  8   6 20.59  -28 29.1   5.685   5.846    94   16.4   4:36 (350, 26)  

* 395P/2020 H1 ( Catalina-NEAT )

Now it is 15.8 mag (Sept. 28, 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)  
Oct.  1  23  3.08   -2 27.4   3.362   4.308   158   16.5  22:22 (  0, 53)  
Oct.  8  23  0.66   -2 48.2   3.420   4.319   150   16.6  21:53 (  0, 52)  

* C/2020 F5 ( MASTER )

It brightened up to 14 mag in 2021. Now it is fading. It has already faded down to 15.9 mag (Oct. 3, ATLAS Chile). It is observable at 16-17 mag in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  23 35.74   15 15.9   5.236   6.197   162   16.5  22:55 (  0, 70)  
Oct.  8  23 31.77   15 15.3   5.298   6.235   157   16.6  22:23 (  0, 70)  

* 44P/Reinmuth 2

Now it is 16.9 mag (Oct. 1, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct.  1   3 42.02   27 38.1   1.690   2.433   127   16.6   3:05 (  0, 83)  
Oct.  8   3 40.74   27 42.3   1.651   2.458   134   16.6   2:36 (  0, 83)  

* 246P/NEAT

Now it is 15.7 mag (Sept. 30, J. L. Virlichie, P. Traverse, H. Roy, G. Houdin). 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)  
Oct.  1   0 26.30  -19 49.8   3.036   3.978   157   16.6  23:45 (  0, 35)  
Oct.  8   0 21.66  -20  2.6   3.078   3.995   153   16.7  23:13 (  0, 35)  

* 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 16.1 mag still now (Oct. 1, Toshihiko Ikemura, Hirohisa Sato). It stays observable in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1  18 48.55    1 26.6   1.652   2.010    95   16.7  19:08 ( 25, 54)  
Oct.  8  18 58.10   -0 11.5   1.683   1.976    91   17.0  18:58 ( 28, 51)  

* C/2019 T3 ( ATLAS )

Now it is 17.1 mag (Oct. 2, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct.  1  21 22.11    3 26.3   6.437   7.166   133   16.9  20:42 (  0, 58)  
Oct.  8  21 19.39    2 29.4   6.551   7.192   126   17.0  20:12 (  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 16.7 mag (Oct. 6, 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)  
Oct.  1   1 57.64  -27  2.2   4.583   5.416   142   16.9   1:21 (  0, 28)  
Oct.  8   1 52.48  -26 58.3   4.615   5.458   144   17.0   0:48 (  0, 28)  

* C/2020 H6 ( ATLAS )

Now it is 16.6 mag (Oct. 2, 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)  
Oct.  1  15 52.51   38 25.5   5.887   5.501    62   17.0  19:08 (112, 43)  
Oct.  8  15 58.34   38  8.7   5.938   5.529    61   17.1  18:58 (113, 41)  

* C/2019 O3 ( Palomar )

Now it is 16.1 mag (Sept. 30, D. Buczynski). 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)  
Oct.  1  17  8.78   64 36.4   9.461   9.416    84   17.1  19:08 (153, 52)  
Oct.  8  17  9.54   64 11.0   9.477   9.430    84   17.1  18:58 (151, 51)  

* P/2022 P2 ( ZTF )

Now it is 18.0 mag (Oct. 2, M. Jaeger, E. Prosperi, S. Prosperi). 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)  
Oct.  1   8 42.34   19 43.4   2.442   2.122    59   17.2   4:30 (273, 41)  
Oct.  8   8 54.82   18 25.2   2.396   2.144    63   17.2   4:36 (278, 44)  

* 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)  
Oct.  1   5 40.99  -78 42.9   2.629   2.803    89   17.3   4:30 (358,-24)  
Oct.  8   5 34.10  -81 30.7   2.754   2.884    87   17.7   4:26 (  0,-26)  

* 402P/2020 Q3 ( LINEAR )

It brightened up to 15.3 mag in last winter (Jan. 12, H. Nohara). Now it is fading. It has already faded down to 17.7 mag (Oct. 3, Catalina Sky Survey). 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)  
Oct.  1   9 35.45   18 16.6   4.880   4.266    47   17.3   4:30 (267, 29)  
Oct.  8   9 42.24   18 13.3   4.811   4.281    52   17.3   4:36 (271, 34)  

* C/2022 L2 ( ATLAS )

Now it is 17.3 mag (Oct. 4, ATLAS-MLO, Mauna Loa). 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)  
Oct.  1  17 56.99   24 15.6   5.727   5.715    84   17.4  19:08 ( 73, 64)  
Oct.  8  17 55.94   23  8.6   5.763   5.663    79   17.3  18:58 ( 76, 59)  

* C/2020 U4 ( PanSTARRS )

Now it is 17.2 mag (Oct. 1, D. Buczynski). 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)  
Oct.  1   1 52.70   28  6.1   4.638   5.511   147   17.4   1:16 (  0, 83)  
Oct.  8   1 42.89   27 25.6   4.600   5.523   155   17.4   0:39 (  0, 83)  

* C/2022 Q2 ( ATLAS )

Now it is 16.3 mag (Oct. 3, ATLAS Chile). 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)  
Oct.  1   1 13.31  -10  6.9   1.284   2.260   162   17.6   0:38 (  0, 45)  
Oct.  8   0 35.07  -12 14.3   1.232   2.203   161   17.4  23:23 (  0, 43)  

* 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 17.3 mag (Oct. 4, W. Hasubick).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   6 41.16   13 40.1   4.157   4.231    87   17.4   4:30 (309, 60)  
Oct.  8   6 44.32   13 13.1   4.071   4.249    93   17.4   4:36 (323, 64)  

* C/2021 QM45 ( PanSTARRS )

Now it is 17.3 mag (Sept. 30, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct.  1   7 15.27   45 58.7   2.742   2.818    83   17.4   4:30 (236, 64)  
Oct.  8   7 27.36   46 23.7   2.680   2.831    88   17.4   4:36 (232, 67)  

* C/2020 U5 ( PanSTARRS )

Now it is 17.9 mag (Oct. 4, M. Iozzi). 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)  
Oct.  1  17 37.37   53  6.2   3.963   4.000    84   17.5  19:08 (138, 61)  
Oct.  8  17 43.45   50 23.8   4.011   4.022    83   17.5  18:58 (132, 60)  

* (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)  
Oct.  1   3 32.04   46 13.7   1.335   2.040   121   17.6   2:56 (180, 79)  
Oct.  8   3 13.83   46 18.7   1.301   2.082   129   17.5   2:10 (180, 79)  

* 107P/(4015) Wilson-Harrington

Now it is 17.1 mag (Oct. 1, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct.  1   7 31.84   24 27.3   0.726   1.093    76   17.7   4:30 (279, 57)  
Oct.  8   7 47.31   23 27.3   0.748   1.139    79   17.8   4:36 (284, 60)  

* 244P/Scotti

Now it is 18.7 mag (Oct. 5, J.-G. Bosch, F. Kugel). 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)  
Oct.  1   6 23.56   25 41.2   3.757   3.925    92   17.8   4:30 (294, 71)  
Oct.  8   6 27.12   25 43.2   3.653   3.924    98   17.8   4:36 (310, 76)  

* C/2020 O2 ( Amaral )

Now it is 16.8 mag (Oct. 2, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct.  1  17 48.32   28 28.2   5.785   5.747    82   17.8  19:08 ( 84, 64)  
Oct.  8  17 50.83   28 10.6   5.879   5.775    79   17.9  18:58 ( 86, 61)  

* C/2022 P3 ( ZTF )

Now it is 17.5 mag (Oct. 1, Ken-ichi Kadota). In the Northern Hemisphere, it is observable at 17-18 mag in excellent condition in autumn. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   7 25.40   41  9.6   2.618   2.655    81   17.8   4:30 (247, 62)  
Oct.  8   7 35.58   43 32.1   2.548   2.676    86   17.8   4:36 (240, 66)  

* C/2019 E3 ( ATLAS )

Now it is 17.5 mag (Oct. 2, 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)  
Oct.  1   8 20.94  -67 39.1  10.727  10.543    76   17.9   4:30 (343,-19)  
Oct.  8   8 21.33  -68 27.0  10.720  10.536    76   17.9   4:36 (346,-18)  

* 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, 20.8 mag (Oct. 1, Pan-STARRS 2, Haleakala).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  1   2 47.01   13 49.1   2.714   3.572   143   19.7   2:10 (  0, 69)  
Oct.  8   2 41.57   14 24.1   2.682   3.595   151   19.8   1:37 (  0, 69)  

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