Weekly Information about Bright Comets (2024 June 22: North)

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Updated on June 22, 2024
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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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* 13P/Olbers

It returned for the first time in 68 years. Now it is 6.3 mag (June 13, 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)  
June 22   7 46.50   41 54.1   1.974   1.182    28    7.2  21:04 (135, 10)  
June 29   8 22.92   42 23.2   1.942   1.176    29    7.2  21:04 (134, 12)  

* 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 7.0 mag (June 15, Marco Goiato). Fading rapidly. In the Northern Hemisphere, it is not observable now. It locates somewhat low in the Southern Hemisphere. But it will become high in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   7 13.39  -31 30.0   1.591   1.351    57    7.8  21:04 ( 75,-39)  
June 29   7 45.33  -35  4.8   1.634   1.443    60    8.2  21:04 ( 70,-39)  

* 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 9.9 mag (June 9, Marco Goiato). It will brighten rapidly after this. It will be unobservable in July 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)  
June 22  11 26.66    3  0.4   1.919   2.016    80    9.7  21:04 ( 71, 29)  
June 29  11 18.33    2 50.3   1.960   1.907    71    9.6  21:04 ( 77, 22)  

* 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)  
June 22   7  1.51   26 14.1   2.112   1.149    13   10.7  21:04 (129, -7)  
June 29   7 32.10   25 59.5   2.150   1.188    13   11.0  21:04 (129, -7)  

* C/2023 V4 ( Camarasa-Duszanowicz )

It brightened very rapidly. Now it is 10.7 mag (June 13, 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.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   7 15.69   58 10.7   1.819   1.180    37   11.0  21:04 (151, 17)  
June 29   8 14.31   59 17.8   1.802   1.219    40   11.2  21:04 (149, 21)  

* 154P/Brewington

Now it is 12.0 mag (June 13, Ken-ichi Kadota). It will fade out rapidly after this. It locates somewhat low in the Northern Hemisphere. But it will become high in autumn. It stays extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   3 29.18   28 48.2   2.278   1.556    34   11.4   3:00 (242, 11)  
June 29   3 52.38   30 40.0   2.263   1.563    36   11.5   3:02 (242, 13)  

* C/2021 S3 ( PanSTARRS )

It brightened up to 9.6 mag from February to March (Feb. 25, Thomas Lehmann). Now it is 12.3 mag (June 19, 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)  
June 22  20 23.79   61 27.1   1.987   2.240    90   12.5   2:22 (180, 64)  
June 29  20 15.75   62 18.0   2.043   2.313    92   12.7   1:47 (180, 63)  

* 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. Now it is 12.6 mag (June 11, Thomas Lehmann). 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)  
June 22  12 19.15  -28 25.8   0.744   1.399   104   12.5  21:04 ( 37, 15)  
June 29  12 51.38  -28 59.2   0.795   1.443   104   13.0  21:04 ( 36, 15)  

* 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 in July in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   7  2.34   36  6.7   4.697   3.743    17   12.7  21:04 (136,  0)  
June 29   7  5.60   36 38.9   4.703   3.731    15   12.7  21:04 (140, -3)  

* C/2023 R2 ( PanSTARRS )

Brightening slowly. 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. It brightens up to 11 mag in August. But it is not observable around the high light.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   6 24.56    6  8.5   2.199   1.272    18   13.3  21:04 (121,-28)  
June 29   6 50.56    6 23.3   2.124   1.193    17   12.9  21:04 (122,-28)  

* 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)  
June 22  15 26.65  -72 54.3   2.152   2.871   126   13.2  21:24 (  0,-18)  
June 29  15 23.95  -70 55.5   2.118   2.829   125   13.1  21:04 (  1,-16)  

* C/2021 G2 ( ATLAS )

Now it is 13.9 mag (June 6, Thomas Lehmann). 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)  
June 22  12  3.90  -23  6.1   4.757   5.020    99   13.9  21:04 ( 44, 17)  
June 29  12  7.78  -22 19.8   4.849   5.013    93   13.9  21:04 ( 49, 14)  

* C/2020 V2 ( ZTF )

It was observed at 9-10 mag for a long time in 2023. Now it is 13.4 mag (June 14, Thomas Lehmann). 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)  
June 22   0 39.51  -54  9.9   4.488   4.832   103   14.1   3:00 (331,-11)  
June 29   0 37.81  -56  4.5   4.473   4.889   108   14.1   3:02 (336, -9)  

* 29P/Schwassmann-Wachmann 1

Now it is 15.7 mag (May 28, ATLAS-HKO, Haleakala). It will be unobservable in July. But it will be observable again in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   8 37.89   18 28.0   7.000   6.211    36   14.2  21:04 (109,  5)  
June 29   8 42.64   18  6.2   7.063   6.213    30   14.2  21:04 (112,  0)  

* 130P/McNaught-Hughes

Now it is 14.2 mag (June 18, Hiroshi Abe). Fading slowly. 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)  
June 22   1 18.09    1 55.8   1.965   1.914    72   14.6   3:00 (284, 22)  
June 29   1 30.57    3  1.8   1.920   1.933    75   14.6   3:02 (286, 26)  

* C/2022 L2 ( ATLAS )

Now it is 14.1 mag (June 3, Thomas Lehmann). 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)  
June 22   9 45.23  -23 18.1   3.054   2.894    71   14.7  21:04 ( 66, -6)  
June 29   9 44.09  -22 49.9   3.192   2.921    65   14.8  21:04 ( 70,-11)  

* 32P/Comas Sola

Now it is 14.7 mag (May 31, Hiroshi Abe). Fading slowly. It will be unobservable in July. 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)  
June 22   8 18.85   26 51.4   2.908   2.100    30   14.8  21:04 (118,  6)  
June 29   8 36.28   25 52.4   2.958   2.118    28   14.9  21:04 (119,  4)  

* 192P/Shoemaker-Levy 1

Now it is 16.7 mag (June 7, Taras Prystavski). Fading gradually. 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)  
June 22   3 28.47   11 18.6   2.160   1.507    38   15.0   3:00 (257,  1)  
June 29   3 46.98   13 37.2   2.158   1.530    40   14.9   3:02 (257,  5)  

* P/2024 FG9 ( Nanshan-Hahn )

Alan Hale reported its cometary appearance. Now it is 14.7 mag (June 12, Ken-ichi Kadota). Fading gradually. It will be fainter than 18 mag in October. It will be unobservable in July 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)  
June 22   9  1.58   15 36.9   2.223   1.627    42   15.0  21:04 (103,  8)  
June 29   9 21.58   14  7.9   2.268   1.642    40   15.1  21:04 (103,  5)  

* 37P/Forbes

It will brighten up to 14 mag from summer to autumn. Now it is 15.8 mag (June 8, A. Pearce). Brightening 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)  
June 22  12 37.49  -17 25.4   1.414   1.936   104   15.1  21:04 ( 40, 27)  
June 29  12 44.72  -17 35.4   1.447   1.902    99   15.0  21:04 ( 45, 24)  

* 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)  
June 22   4 40.99  -46 10.9   2.915   2.776    72   15.1   3:00 (304,-41)  
June 29   5  0.48  -48 27.0   2.861   2.769    74   15.0   3:02 (307,-39)  

* 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 appear in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   5 52.79   15 12.1   7.098   6.095     8   15.1   3:00 (230,-23)  
June 29   5 56.73   15 29.2   7.147   6.153    11   15.1   3:02 (235,-18)  

* 146P/Shoemaker-LINEAR

It will brighten up to 14.5 mag in summer. Now it is 15.8 mag (June 19, ATLAS-HKO, Haleakala). Fading slowly. 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)  
June 22   1 55.66  -11 55.6   1.515   1.509    70   15.3   3:00 (289,  6)  
June 29   2 16.26   -9 38.2   1.469   1.484    70   15.1   3:02 (289,  9)  

* 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)  
June 22  15 25.37  -25 12.7   2.288   3.168   144   15.3  21:21 (  0, 30)  
June 29  15 24.03  -24 39.0   2.349   3.171   137   15.4  21:04 (  3, 30)  

* C/2019 L3 ( ATLAS )

It brightened up to 8.3 mag in 2021-2022 winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is 16.3 mag (May 23, ATLAS South Africa). It stays 16 mag for a while. 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)  
June 22  10 45.45  -47 21.8   7.994   8.144    94   15.4  21:04 ( 39,-11)  
June 29  10 48.66  -47  1.3   8.111   8.189    90   15.4  21:04 ( 42,-14)  

* 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). Fading rapidly. 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)  
June 22  10 27.89    6 16.0   2.328   2.122    65   15.4  21:04 ( 83, 20)  
June 29  10 41.51    5  4.3   2.444   2.173    62   15.7  21:04 ( 84, 16)  

* 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 (May 24, Ken-ichi Kadota). 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)  
June 22  23  2.18   -4 35.5   4.789   5.160   105   15.5   3:00 (318, 41)  
June 29  23  3.48   -4 20.5   4.652   5.122   112   15.4   3:02 (326, 45)  

* 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. It locates somewhat low in the Southern Hemisphere. But it will become high in summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   7 30.79  -31 56.2   5.780   5.332    59   15.5  21:04 ( 73,-36)  
June 29   7 33.34  -31 57.6   5.858   5.374    57   15.6  21:04 ( 76,-41)  

* 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 turn to fade out rapidly after the peak. It will be fainter than 18 mag in July. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it will be unobservable in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   3 48.10   19 12.2   1.211   0.636    31   16.0   3:00 (248,  2)  
June 29   4 37.09   19 47.6   1.291   0.601    26   15.5   3:02 (245, -1)  

* 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. It locates somewhat low in the Southern Hemisphere. But it will become high in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   5 37.45    2 26.4   7.295   6.363    21   15.6   3:00 (243,-30)  
June 29   5 42.85    2 41.2   7.255   6.338    23   15.5   3:02 (247,-25)  

* 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)  
June 22   3 53.67  -62 15.7  16.224  16.247    89   15.7   3:00 (326,-36)  
June 29   3 57.49  -62 33.1  16.171  16.223    91   15.6   3:02 (327,-33)  

* 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)  
June 22   6 28.32   21 40.9   2.890   1.883     6   15.9  21:04 (132,-16)  
June 29   6 47.39   21 41.0   2.880   1.867     3   15.8  21:04 (133,-17)  

* 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 10, Masayoshi Yoshimi). Fading slowly. 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)  
June 22  17 25.94   33 10.0   6.617   7.217   122   16.2  23:21 (  0, 88)  
June 29  17 23.10   33  7.6   6.677   7.257   121   16.2  22:51 (  0, 88)  

* C/2023 F3 ( ATLAS )

Now it is 16.5 mag (June 6, Giuseppe Pappa). It stays 16 mag for a while. In the Northern Hemisphere, it will be unobservable in July. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  13 58.77  -48  3.1   4.799   5.462   126   16.3  21:04 ( 12,  5)  
June 29  13 50.23  -46 58.9   4.868   5.446   119   16.3  21:04 ( 18,  5)  

* 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)  
June 22   6  5.93  -36 53.3   5.328   4.905    60   16.5  21:04 ( 74,-54)  
June 29   6 12.36  -36 23.1   5.385   4.952    59   16.5   3:02 (287,-50)  

* 89P/Russell 2

Now it is 16.8 mag (May 29, ATLAS South Africa). It stays 17 mag for a while. In the Southern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  23 39.86  -18 15.0   1.871   2.312   102   16.6   3:00 (318, 25)  
June 29  23 46.09  -18  5.6   1.812   2.326   107   16.5   3:02 (323, 28)  

* C/2019 E3 ( ATLAS )

Very far object. Now it is 17.1 mag (Apr. 2, 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)  
June 22   2 59.74  -63 41.0  10.256  10.380    94   16.7   3:00 (329,-31)  
June 29   3  1.41  -63 59.4  10.223  10.384    96   16.7   3:02 (330,-28)  

* 65P/Gunn

Now it is 16.5 mag (June 19, 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)  
June 22  12 36.17    2 42.4   3.115   3.384    96   16.8  21:04 ( 56, 42)  
June 29  12 39.13    2  1.2   3.198   3.369    90   16.8  21:04 ( 61, 37)  

* C/2021 X1 ( Maury-Attard )

It brightened up to 14 mag in early 2023 and 2023 autumn. Now it is 17.2 mag (June 7, Ken-ichi Kadota). 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)  
June 22  22 23.59   21 17.4   4.513   4.835   102   16.9   3:00 (301, 67)  
June 29  22 16.72   21 51.2   4.450   4.879   109   16.9   3:02 (319, 74)  

* 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)  
June 22  15  0.72   -0 55.0   2.105   2.870   130   17.0  21:04 (  3, 54)  
June 29  15  0.59   -1  0.8   2.172   2.868   124   17.0  21:04 ( 15, 53)  

* 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 17.2 mag (June 13, ATLAS South Africa). Brightening gradually. 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)  
June 22  13 11.68  -74 10.9   3.165   3.740   117   17.2  21:04 (  8,-21)  
June 29  13  0.54  -71 58.0   3.116   3.652   114   17.1  21:04 ( 12,-20)  

* C/2023 T3 ( Fuls )

Now it is 17.0 mag (May 27, Taras Prystavski). It stays 17 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 unobservable in August. But it will be observable again in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   8 43.57   -5 58.5   4.646   4.052    48   17.1  21:04 ( 88, -8)  
June 29   8 51.45   -6 17.1   4.677   4.023    45   17.1  21:04 ( 91,-13)  

* C/2023 Q1 ( PanSTARRS )

Brightening slowly. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it will be unobservable in September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   2 51.37   34  4.1   3.759   3.094    42   17.3   3:00 (242, 20)  
June 29   3  2.59   35 46.0   3.660   3.055    46   17.2   3:02 (242, 25)  

* 227P/Catalina-LINEAR

It brightened up to 14.5 mag from February to March (Mar. 11, W. Pei). Now it is 16.9 mag (June 15, ATLAS-HKO, Haleakala). It will fade out rapidly after this. It will be fainter than 18 mag in July. 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)  
June 22  11 15.95    7 24.4   1.877   1.911    76   17.2  21:04 ( 76, 30)  
June 29  11 29.82    5 27.7   1.971   1.944    73   17.4  21:04 ( 77, 26)  

* 62P/Tsuchinshan 1

It brightened up to 7.4 mag from December to January (Dec. 24, Osamu Miyazaki). Now it is 16.3 mag (May 29, Ken-ichi Kadota). Fading rapidly. It will be fainter than 18 mag in July. 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)  
June 22  12 41.84   -1  8.2   1.907   2.301    99   17.3  21:04 ( 51, 40)  
June 29  12 49.34   -2 14.3   2.038   2.353    94   17.8  21:04 ( 55, 36)  

* C/2022 U1 ( Leonard )

Now it is 17.4 mag (June 6, ATLAS-HKO, Haleakala). 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)  
June 22  22  7.60   48 10.8   4.144   4.266    89   17.4   3:00 (218, 72)  
June 29  21 55.80   48 44.3   4.068   4.277    94   17.4   3:02 (197, 75)  

* C/2022 T1 ( Lemmon )

Now it is 17.8 mag (June 10, Mt. Lemmon Survey). Fading slowly. It will be fainter than 18 mag in August. 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)  
June 22  14  4.44  -17 15.5   2.966   3.634   124   17.4  21:04 ( 19, 36)  
June 29  14  7.14  -16 42.4   3.068   3.655   117   17.5  21:04 ( 26, 34)  

* 125P/Spacewatch

Now it is 16.5 mag (June 13, ATLAS-MLO, Mauna Loa). Fading gradually. It will be fainter than 18 mag in July. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  21 51.90   -3 18.9   1.094   1.840   121   17.5   3:00 (340, 50)  
June 29  21 53.05   -3 40.1   1.072   1.875   127   17.7   3:02 (351, 51)  

* 328P/LONEOS-Tucker

Now it is 18.9 mag (June 12, Taras Prystavski). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   1 23.32   12 50.2   2.059   1.903    66   17.7   3:00 (273, 27)  
June 29   1 37.03   15 14.9   1.993   1.893    69   17.6   3:02 (273, 32)  

* C/2024 J3 ( ATLAS )

Now it is 17.1 mag (June 13, ATLAS South Africa). 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)  
June 22  19  6.28  -42 48.3   7.113   8.056   156   17.8   1:06 (  0, 12)  
June 29  19  1.50  -42 38.7   7.052   8.013   159   17.8   0:34 (  0, 12)  

* C/2023 Q2 ( PanSTARRS )

Now it is 18.9 mag (June 15, Roland Fichtl). Fading slowly. It will be fainter than 18 mag in July. 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)  
June 22  18 26.87  -10 52.7   2.213   3.209   166   17.8   0:27 (  0, 44)  
June 29  18 12.19  -13 22.4   2.206   3.210   169   17.8  23:39 (  0, 41)  

* C/2023 R1 ( PanSTARRS )

Now it is 17.9 mag (June 8, ATLAS-HKO, Haleakala). Brightening slowly. 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)  
June 22   0 20.54   29 42.7   6.827   6.638    75   17.9   3:00 (262, 48)  
June 29   0 19.02   30 10.5   6.671   6.593    81   17.8   3:02 (265, 55)  

* 473P/2023 W1 ( NEAT )

First return of a new periodic comet which brightened up to 10 mag in 2001. It brightened up to 12.5 mag from February to March (Feb. 29, Thomas Lehmann). Now it is 14.9 mag (May 28, Thomas Lehmann). Fading rapidly. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it is not observable now.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   9 31.90   54 42.5   2.539   2.032    49   18.1  21:04 (137, 31)  
June 29   9 55.74   51 46.1   2.629   2.091    48   18.5  21:04 (134, 30)  

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