Weekly Information about Bright Comets (2024 July 6: South)

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Updated on July 10, 2024
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern Hemisphere.
Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

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* 13P/Olbers

It returned for the first time in 68 years. Now it is 6.7 mag (July 8, Virgilio Gonano). It will fade out rapidly after this. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it is not observable now, but it will appear in August. It is brighter than this ephemeris recently.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   9  0.92   42  9.4   1.918   1.179    31    7.3  18:31 (136, -8)  
July 13   9 39.39   41  9.4   1.901   1.192    33    7.4  18:34 (137, -6)  

* 12P/Pons-Brooks

It returns for the first time in 70 years. It brightened up to 3.7 mag in early April (Apr. 6, Jose Guilherme Aguiar). Now it is 7.8 mag (July 5, Marco Goiato). Fading rapidly. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it stays observable in good condition. It is brighter than this ephemeris recently.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   8 18.39  -38 10.7   1.691   1.536    63    8.7  18:31 ( 62, 30)  
July 13   8 52.00  -40 45.1   1.764   1.629    65    9.1  18:34 ( 59, 31)  

* C/2023 A3 ( Tsuchinshan-ATLAS )

It will approach to Sun down to 0.4 a.u. in late September, and it is expected to brighten up to 2 mag. The brightness evolution slowed down since May. Now it is 9.7 mag (July 8, Virgilio Gonano). It will brighten rapidly after this. It will be unobservable soon in the Northern Hemisphere, or in August in the Southern Hemisphere. But it will be observable again in September in the Southern Hemisphere, or in October in the Northern Hemisphere. At the high light, in the Northern Hemisphere, it will be observable in good condition after the perihelion passage. In the Southern Hemisphere, it will be observable in the low sky before and after the perihelion passage.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  11 11.53    2 32.6   1.996   1.796    63    9.4  18:31 (132, 40)  
July 13  11  6.01    2  8.3   2.024   1.682    56    9.2  18:34 (123, 35)  

* 46P/Wirtanen

The condition is bad in this apparition. It brightens up to 10 mag in early summer, however, it is not observable at all. It will fade out rapidly after this. It will be fainter than 18 mag in October. It will never be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   8  1.49   25 22.9   2.194   1.232    14   11.4  18:31 (115, -8)  
July 13   8 29.47   24 27.8   2.243   1.280    13   11.9  18:34 (114, -8)  

* C/2023 V4 ( Camarasa-Duszanowicz )

It brightened very rapidly. Now it is 10.8 mag (July 8, Virgilio Gonano). It will fade out rapidly after this. It will be fainter than 18 mag in November. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it is not observable now, but it will appear in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   9 15.26   58 46.2   1.799   1.267    43   11.5  18:31 (151,-17)  
July 13  10 12.24   56 38.6   1.813   1.321    45   11.8  18:34 (152,-13)  

* 154P/Brewington

Now it is 14.1 mag (July 9, Mike Olason). It will fade out rapidly after this. In the Northern Hemisphere, it will be getting higher gradually. It stays extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   4 16.58   32 19.6   2.254   1.574    37   11.6   5:38 (224,  5)  
July 13   4 40.45   33 41.6   2.245   1.589    38   11.8   5:36 (223,  4)  

* C/2023 R2 ( PanSTARRS )

It brightens up to 11 mag in August. It brightens up to 11.5 mag, but it will turn to fade out rapidly after that. Now it is not observable. It will appear in September in the Northern Hemisphere. In the Southern Hemisphere, it will never be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   7 18.47    6 31.0   2.054   1.119    16   12.6  18:31 ( 94, -6)  
July 13   7 48.26    6 31.2   1.993   1.053    15   12.2  18:34 ( 94, -6)  

* C/2022 E2 ( ATLAS )

Now it is 12.8 mag (May 31, Hiroshi Abe). It stays 12 mag for a while. Now it is not observable. It will appear soon in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   7  9.03   37 13.1   4.695   3.720    14   12.7  18:31 (120,-24)  
July 13   7 12.57   37 49.6   4.674   3.710    16   12.7   5:36 (239,-23)  

* C/2021 S3 ( PanSTARRS )

It brightened up to 9.6 mag from February to March (Feb. 25, Thomas Lehmann). Now it is 12.4 mag (July 8, Osamu Miyazaki). Fading gradually. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it is not observable now, but it will appear in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  20  6.56   62 45.1   2.097   2.387    93   12.9   1:10 (180, -8)  
July 13  19 56.89   62 48.5   2.151   2.461    95   13.1   0:33 (180, -8)  

* C/2023 C2 ( ATLAS )

Now it is 13.5 mag (June 11, Thomas Lehmann). It stays 13 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in August. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  15 24.40  -68 43.1   2.093   2.789   123   13.1  20:27 (  0, 56)  
July 13  15 27.53  -66 19.9   2.078   2.750   121   13.0  20:02 (  0, 59)  

* 479P/2023 WM26 ( Elenin )

First return of a new periodic comet which was discovered in 2011, half a year after the perihelion passage. It brightened very rapidly up to 10.7 mag in spring (Apr. 28, Marco Goiato). Now it is 15.6 mag (June 19, Ken-ichi Kadota). Fading rapidly. It will be fainter than 18 mag in September. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  13 22.15  -29 13.7   0.856   1.491   105   13.5  18:31 (167, 84)  
July 13  13 51.11  -29 13.7   0.927   1.542   104   14.0  18:34 (163, 84)  

* C/2021 G2 ( ATLAS )

Now it is 13.8 mag (June 19, Ken-ichi Kadota). It stays 14 mag for a while. It will be unobservable in August in the Northern Hemisphere, or in October in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  12 12.10  -21 38.7   4.944   5.008    87   14.0  18:31 (123, 68)  
July 13  12 16.83  -21  2.8   5.040   5.003    82   14.0  18:34 (115, 63)  

* C/2020 V2 ( ZTF )

It was observed at 9-10 mag for a long time in 2023. Now it is 14.5 mag (June 27, ATLAS Chile). Fading slowly. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   0 34.69  -58  2.1   4.466   4.946   112   14.2   5:38 (  0, 67)  
July 13   0 29.89  -60  0.6   4.469   5.002   116   14.2   5:06 (  0, 65)  

* 29P/Schwassmann-Wachmann 1

Now it is 16.0 mag (June 11, Jean-Francois Soulier). In the Northern Hemisphere, it is not observable now, but it will appear in September. In the Southern Hemisphere, it will be unobservable soon. But it will be observable again in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   8 47.54   17 43.4   7.117   6.214    25   14.2  18:31 (116,  5)  
July 13   8 52.53   17 19.6   7.162   6.216    19   14.2  18:34 (111,  0)  

* 130P/McNaught-Hughes

Now it is 14.4 mag (July 6, Hiroshi Abe). Fading slowly. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   1 42.37    4  2.1   1.874   1.953    78   14.7   5:38 (206, 48)  
July 13   1 53.42    4 56.4   1.827   1.975    82   14.7   5:36 (200, 48)  

* 37P/Forbes

It will brighten up to 14 mag from summer to autumn. Now it is 15.8 mag (June 8, A. Pearce). It stays 14 mag for a while. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  12 53.41  -17 53.7   1.481   1.869    95   14.8  18:31 (153, 71)  
July 13  13  3.49  -18 19.6   1.515   1.838    90   14.7  18:34 (139, 69)  

* 192P/Shoemaker-Levy 1

Now it is 16.7 mag (June 7, Taras Prystavski). It will fade out rapidly after this. In the Northern Hemisphere, it will be getting higher gradually. It stays extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   4  5.00   15 44.9   2.155   1.556    42   14.8   5:38 (234, 19)  
July 13   4 22.90   17 46.9   2.153   1.587    43   14.8   5:36 (231, 19)  

* 146P/Shoemaker-LINEAR

It will brighten up to 14.5 mag in summer. Now it is 15.3 mag (July 5, ATLAS-HKO, Haleakala). Fading gradually. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   2 36.67   -7 16.2   1.428   1.463    71   14.9   5:38 (232, 51)  
July 13   2 56.59   -4 54.7   1.390   1.445    71   14.8   5:36 (228, 50)  

* C/2022 L2 ( ATLAS )

Now it is 16.0 mag (July 2, ATLAS Chile). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in October. In the Southern Hemisphere, it will be getting lower gradually. But it will be getting higher again after August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   9 43.74  -22 32.4   3.322   2.950    60   15.0  18:31 ( 88, 40)  
July 13   9 43.99  -22 24.5   3.444   2.980    55   15.1  18:34 ( 84, 33)  

* C/2022 S4 ( Lemmon )

Now it is 16.5 mag (June 20, Thomas Lehmann). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it stays observable in good condition. The brightness evolution is slower than originally expected.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   5 21.98  -50 48.5   2.816   2.765    76   15.0   5:38 (311, 37)  
July 13   5 45.76  -53 12.3   2.782   2.763    78   15.0   5:36 (314, 38)  

* 32P/Comas Sola

Now it is 14.7 mag (May 31, Hiroshi Abe). Fading slowly. It will be unobservable soon. But it will be observable again in October in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   8 53.34   24 47.8   3.007   2.136    25   15.0  18:31 (122,  2)  
July 13   9 10.01   23 38.0   3.054   2.157    23   15.1  18:34 (119,  0)  

* C/2017 K2 ( PanSTARRS )

It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 14.5 mag (Apr. 27, Hiroshi Abe). It stays 15 mag for a while. Now it is not observable. It will be observable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   6  0.57   15 45.0   7.183   6.211    15   15.2   5:38 (252, -2)  
July 13   6  4.28   15 59.5   7.207   6.269    21   15.2   5:36 (249,  2)  

* P/2024 FG9 ( Nanshan-Hahn )

Alan Hale reported its cometary appearance. Now it is 14.7 mag (June 12, Ken-ichi Kadota). It will fade out rapidly after this. It will be fainter than 18 mag in October. It will be unobservable soon in the Northern Hemisphere, or in September in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   9 41.21   12 33.1   2.315   1.659    39   15.2  18:31 (120, 18)  
July 13  10  0.45   10 53.4   2.364   1.678    37   15.4  18:34 (117, 17)  

* C/2022 N2 ( PanSTARRS )

It is expected to brighten up to 13 mag in 2025 autumn, and it will be observable in good condition. Now it is 15.9 mag (July 1, ATLAS-HKO, Haleakala). It stays 15 mag for a while. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  23  4.25   -4  8.5   4.519   5.084   118   15.3   4:08 (180, 59)  
July 13  23  4.47   -3 59.6   4.393   5.046   125   15.2   3:41 (180, 59)  

* C/2022 QE78 ( ATLAS )

Now it is 15.9 mag (Mar. 26, ATLAS Chile). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in August. In the Southern Hemisphere, it will be getting higher gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   5 48.24    2 53.8   7.207   6.313    26   15.5   5:38 (261,  8)  
July 13   5 53.58    3  4.2   7.149   6.289    29   15.5   5:36 (258, 12)  

* 299P/Catalina-PanSTARRS

It brightened very rapidly in outburst in late May. Now it is 15.3 mag (June 12, Ken-ichi Kadota). Fading slowly. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  15 23.72  -24  9.0   2.420   3.175   130   15.5  20:25 (180, 79)  
July 13  15 24.45  -23 43.3   2.498   3.179   123   15.6  19:58 (180, 79)  

* C/2019 L3 ( ATLAS )

It brightened up to 8.3 mag in 2021-2022 winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is 16.4 mag (June 30, ATLAS Chile). It stays 16 mag for a while. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it will be getting lower gradually. But it will be getting higher again after September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  10 52.20  -46 44.3   8.229   8.234    86   15.5  18:31 ( 56, 58)  
July 13  10 56.05  -46 31.0   8.347   8.279    82   15.6  18:34 ( 57, 54)  

* P/2003 T12 ( SOHO )

It was observed at three apparitions in 2003, 2012 and 2016. It has not been observed yet in this apparition. It will fade out rapidly after this. It will be fainter than 18 mag soon. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it will be unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   5 24.19   19 46.5   1.384   0.595    22   15.6   5:38 (244,  2)  
July 13   6  8.48   19 14.9   1.483   0.620    19   16.2   5:36 (247, -1)  

* C/2014 UN271 ( Bernardinelli-Bernstein )

Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 15.3 mag (June 19, Thomas Lehmann). It stays 16 mag for a while. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it stays observable in good condition. In the Northern Hemisphere, it is not observable until 2030.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   4  1.16  -62 52.7  16.120  16.199    92   15.6   5:38 (328, 48)  
July 13   4  4.66  -63 14.3  16.071  16.175    94   15.6   5:36 (330, 50)  

* C/2019 U5 ( PanSTARRS )

Now it is 14.9 mag (June 5, Thomas Lehmann). It stays 16 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in September. In the Southern Hemisphere, it will be getting higher gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   7 35.99  -32  5.2   5.928   5.416    55   15.7  18:31 ( 63, 19)  
July 13   7 38.68  -32 19.0   5.990   5.458    54   15.7  18:34 ( 60, 14)  

* 30P/Reinmuth 1

Now it is 16.3 mag (Mar. 29, Ken-ichi Kadota). It stays 16 mag for a while. Now it is not observable. It will appear in September in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   7  6.66   21 32.5   2.869   1.853     1   15.8  18:31 (105,-16)  
July 13   7 26.04   21 15.1   2.857   1.840     1   15.7   5:36 (256,-17)  

* 144P/Kushida

It brightened up to 8.9 mag from January to March (Feb. 13, Chris Wyatt). Now it is 15.1 mag (June 5, Ken-ichi Kadota). It will fade out rapidly after this. It will be fainter than 18 mag in August. It stays extremely low in the Northern Hemisphere. In the Southern Hemisphere, it will be getting lower gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  10 54.77    3 52.1   2.560   2.223    59   16.1  18:31 (129, 37)  
July 13  11  7.71    2 39.6   2.676   2.274    56   16.5  18:34 (124, 35)  

* C/2019 T4 ( ATLAS )

It brightened up to 11.1 mag in early 2022 (Mar. 31, 2022, F. Kugel, J.-G. Bosch, J. Nicolas). Now it is 15.4 mag (June 26, Thomas Lehmann). Fading slowly. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  17 20.48   32 59.2   6.745   7.298   119   16.3  22:21 (180, 22)  
July 13  17 18.14   32 45.3   6.821   7.339   117   16.3  21:51 (180, 22)  

* C/2023 F3 ( ATLAS )

Now it is 16.8 mag (July 5, ATLAS Chile). It stays 16 mag for a while. In the Northern Hemisphere, it will be unobservable soon. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  13 43.08  -45 55.0   4.949   5.430   113   16.3  18:44 (  0, 79)  
July 13  13 37.24  -44 53.3   5.038   5.415   106   16.3  18:34 ( 22, 79)  

* 89P/Russell 2

Now it is 16.6 mag (July 6, ATLAS Chile). Fading slowly. It will be fainter than 18 mag in November. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  23 51.12  -18  2.9   1.755   2.341   112   16.5   4:55 (180, 73)  
July 13  23 54.87  -18  7.1   1.702   2.358   118   16.4   4:31 (180, 73)  

* C/2020 K1 ( PanSTARRS )

It brightened up to 12.1 mag in 2023 spring (May 20, 2023, Jose Guilherme de S. Aguiar). Now it is 15.4 mag (May 30, Thomas Lehmann). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in September. In the Southern Hemisphere, it will be getting higher gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   6 18.54  -35 59.9   5.437   4.999    59   16.6   5:38 (299, 23)  
July 13   6 24.43  -35 43.4   5.484   5.046    59   16.7   5:36 (297, 26)  

* C/2019 E3 ( ATLAS )

Very far object. Now it is 16.7 mag (July 5, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   3  2.59  -64 21.0  10.191  10.388    98   16.7   5:38 (334, 53)  
July 13   3  3.22  -64 45.5  10.162  10.393   100   16.7   5:36 (338, 55)  

* C/2022 R6 ( PanSTARRS )

Now it is 17.0 mag (May 6, ATLAS Chile). It stays 16 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in August. In the Southern Hemisphere, it will be getting higher gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   6  9.22  -23 56.1   7.767   7.131    48   16.7   5:38 (287, 18)  
July 13   6 14.73  -23 54.2   7.735   7.113    49   16.7   5:36 (284, 22)  

* C/2024 G3 ( ATLAS )

It approaches to Sun down to 0.09 a.u. on Jan. 13, 2025. According to the calculation, it will brighten up to -1 mag. But probably, it will be disintegrated. At the high light, it may be observable after the perihelion passage only in the Southern Hemisphere. Now it is 16.8 mag (July 5, ATLAS Chile). It will brighten rapidly after this. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  12 54.23  -69 40.0   3.076   3.564   110   17.0  18:31 (  5, 55)  
July 13  12 51.52  -67 20.8   3.046   3.474   106   16.8  18:34 ( 12, 56)  

* 65P/Gunn

Now it is 16.5 mag (June 23, ATLAS-HKO, Haleakala). It stays 17 mag for a while. It will be getting lower gradually after this, and it will be unobservable in September in the Northern Hemisphere, or in October in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  12 42.82    1 16.4   3.281   3.354    85   16.8  18:31 (161, 52)  
July 13  12 47.18    0 28.3   3.364   3.340    79   16.9  18:34 (150, 51)  

* C/2021 X1 ( Maury-Attard )

It brightened up to 14 mag in early 2023 and 2023 autumn. Now it is 17.3 mag (July 6, ATLAS-HKO, Haleakala). Fading slowly. It will be fainter than 18 mag in October. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  22  9.02   22 18.6   4.395   4.924   115   16.9   3:13 (180, 33)  
July 13  22  0.56   22 38.5   4.351   4.969   122   16.9   2:37 (180, 32)  

* C/2023 Q1 ( PanSTARRS )

Now it is 17.3 mag (June 28, A. Diepvens). Brightening slowly. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   3 14.17   37 29.6   3.559   3.017    50   17.1   5:38 (211,  8)  
July 13   3 26.13   39 14.9   3.457   2.979    54   16.9   5:36 (208,  8)  

* 362P/(457175) 2008 GO98

Now it is 16.4 mag (May 4, Toshiyuki Takahashi). It stays 17 mag for a while. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  15  1.47   -1 14.1   2.245   2.867   118   17.0  20:03 (180, 56)  
July 13  15  3.35   -1 34.0   2.323   2.866   112   17.1  19:37 (180, 57)  

* 328P/LONEOS-Tucker

Now it is 17.5 mag (July 2, ATLAS-HKO, Haleakala). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   1 50.71   17 39.7   1.928   1.885    72   17.4   5:38 (202, 34)  
July 13   2  4.33   20  4.0   1.864   1.879    75   17.3   5:36 (198, 33)  

* C/2022 U1 ( Leonard )

Now it is 16.5 mag (July 4, A. Diepvens). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It stays extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  21 42.48   49  5.6   3.998   4.288    99   17.3   2:47 (180,  6)  
July 13  21 27.84   49 11.6   3.935   4.300   104   17.3   2:04 (180,  6)  

* C/2022 T1 ( Lemmon )

Now it is 17.8 mag (June 29, ATLAS Chile). Fading slowly. It will be fainter than 18 mag soon. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  14 10.50  -16 15.4   3.176   3.677   111   17.6  19:12 (180, 71)  
July 13  14 14.51  -15 54.2   3.289   3.700   105   17.7  18:49 (180, 71)  

* C/2023 R1 ( PanSTARRS )

Now it is 17.6 mag (July 6, ATLAS-HKO, Haleakala). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   0 16.89   30 37.0   6.514   6.548    87   17.7   5:20 (180, 24)  
July 13   0 14.09   31  1.3   6.356   6.503    93   17.6   4:50 (180, 24)  

* 227P/Catalina-LINEAR

It brightened up to 14.5 mag from February to March (Mar. 11, W. Pei). Now it is 17.2 mag (June 25, ATLAS-MLO, Mauna Loa). It will fade out rapidly after this. It will be fainter than 18 mag soon. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it will be getting lower gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  11 43.51    3 33.2   2.067   1.979    70   17.7  18:31 (142, 44)  
July 13  11 57.06    1 41.1   2.164   2.015    67   17.9  18:34 (135, 44)  

* C/2024 J3 ( ATLAS )

Now it is 17.1 mag (July 1, ATLAS Chile). It stays 18 mag for a while. It stays extremely low in the Northern Hemisphere. But it will become high in spring. In the Southern Hemisphere, it stays observable in good condition. It is expected to brighten up to 13 mag in 2026, and it will be observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it locates very low at the high light.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  18 56.61  -42 25.5   7.011   7.975   160   17.7   0:02 (  0, 83)  
July 13  18 51.70  -42  9.5   6.979   7.932   158   17.7  23:25 (  0, 83)  

* 125P/Spacewatch

Now it is 16.5 mag (June 13, ATLAS-MLO, Mauna Loa). It will fade out rapidly after this. It will be fainter than 18 mag soon. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  21 52.42   -4 15.8   1.055   1.912   134   17.8   2:56 (180, 59)  
July 13  21 50.13   -5  5.6   1.044   1.950   142   17.9   2:27 (180, 60)  

* C/2023 Q2 ( PanSTARRS )

Now it is 16.9 mag (July 1, G. Duszanowicz). Fading slowly. It will be fainter than 18 mag soon. In the Northern Hemisphere, it will be getting lower gradually. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  17 57.35  -15 52.0   2.224   3.212   163   17.8  22:57 (180, 71)  
July 13  17 42.94  -18 16.4   2.266   3.215   154   17.8  22:15 (180, 73)  

* 2020 TS2

It will approach to Sun down to 0.12 a.u. on Aug. 4. It will brighten up to 11 mag, but it is not observable at the high light. It brightens up to 10.5 mag, but it will turn to fade out rapidly after that. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it will be unobservable in August. But it will be observable again in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   5 52.10   14 37.3   1.803   0.896    18   20.3   5:38 (252,  0)  
July 13   6 24.07   15 46.2   1.653   0.739    16   19.3   5:36 (252, -2)  

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