Weekly Information about Bright Comets (2025 June 14: North)

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Updated on June 14, 2025
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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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* 217P/LINEAR

Now it is 12.1 mag (June 10, Taras Prystavski). It will fade out rapidly after this. In the Northern Hemisphere, it is not observable now, but it will appear in July. It stays extremely 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 14   3 35.72   11 13.1   2.033   1.253    29   13.2   2:58 (251, -7)  
June 21   4  0.64   12 29.8   2.051   1.275    29   13.3   2:59 (250, -6)  

* C/2023 A3 ( Tsuchinshan-ATLAS )

It brightened up to -3 mag due to the forward scattering in the SOHO coronagraph images (Oct. 9, 2024, Q.-c. Zhang, Charles S. Morris). It became a great comet of 0 mag on the ground. Now it is 13.3 mag (May 31, Thomas Lehmann). Fading gradually. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. But it will become high in spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14  19 23.89   28 55.3   3.503   4.118   120   13.4   1:56 (  0, 84)  
June 21  19 13.40   29  3.1   3.538   4.198   124   13.5   1:18 (  0, 84)  

* 21P/Giacobini-Zinner

It brightened up to 11 mag in the SWAN images (Jan. 27, Vladimir Bezugly). It will fade out rapidly after this. It will be fainter than 18 mag in October. Now it is not observable. It will appear in July in the Southern Hemisphere, or in September in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   5 31.26    5 23.1   2.424   1.491    17   14.0  21:01 (124,-32)  
June 21   5 51.97    4 47.7   2.483   1.555    18   14.4   2:59 (237,-31)  

* C/2022 N2 ( PanSTARRS )

Now it is 14.9 mag (Feb. 4, Alfons Diepvens). It stays 14 mag for a while. In the Northern Hemisphere, it will be getting higher gradually. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   2 13.08   17 58.1   4.485   3.848    45   14.1   2:58 (257, 13)  
June 21   2 21.44   18 46.6   4.409   3.842    50   14.1   2:59 (259, 17)  

* 29P/Schwassmann-Wachmann 1

Now it is 13.0 mag (June 5, Osamu Miyazaki). 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 Northern Hemisphere, or in October in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   9 49.20    9 37.9   6.670   6.282    63   14.1  21:01 ( 87, 21)  
June 21   9 52.58    9 19.3   6.768   6.283    57   14.1  21:04 ( 90, 15)  

* C/2021 G2 ( ATLAS )

Now it is 13.6 mag (June 4, Yoshiaki Yamaguchi). 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 14  15  7.67   -2 46.8   4.598   5.417   140   14.2  21:36 (  0, 52)  
June 21  15  6.17   -2 14.9   4.690   5.438   133   14.2  21:07 (  0, 53)  

* C/2024 G3 ( ATLAS )

It approached to Sun down to 0.09 a.u. on Jan. 13. It brightened up to -2 or -3 mag and it was detected even in the daylight. The nucleus was disintegrated on Jan. 19. However, its remnant is still visible. Fading 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 14   3  1.15  -57 43.1   2.922   3.037    86   14.2   2:58 (321,-33)  
June 21   3 12.47  -59 45.1   2.966   3.132    89   14.3   2:59 (324,-32)  

* 48P/Johnson

Now it is 15.2 mag (May 10, Taras Prystavski). 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 14   2  4.71    2  8.8   2.603   2.163    53   14.6   2:58 (271,  6)  
June 21   2 17.51    2 56.4   2.563   2.183    57   14.7   2:59 (273,  9)  

* C/2022 E2 ( ATLAS )

It was observed at 12-13 mag for a long time in 2024. Now it is 14.9 mag (June 1, Ken-ichi Kadota). It stays 15 mag for a while. 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 14   1 53.19   51 26.6   4.975   4.388    49   14.8   2:58 (226, 32)  
June 21   1 52.26   52  6.9   4.937   4.421    54   14.8   2:59 (227, 36)  

* C/2024 E1 ( Wierzchos )

It is expected to brighten up to 5 mag in 2026 January. Now it is 15.7 mag (June 1, Ken-ichi Kadota). It will brighten rapidly after this. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it is not observable now, but it will appear in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14  17 21.48   58 14.1   3.244   3.540    98   15.0  23:48 (180, 67)  
June 21  17  7.69   57 54.8   3.166   3.457    97   14.9  23:06 (180, 67)  

* C/2022 QE78 ( ATLAS )

Now it is 14.6 mag (May 10, Alfons Diepvens). 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 unobservable soon. But it will be observable again in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   7 15.53   17 35.9   6.414   5.516    25   15.0  21:01 (115, -5)  
June 21   7 21.95   17 48.3   6.451   5.510    20   15.0  21:04 (119, -9)  

* C/2023 R1 ( PanSTARRS )

It is expected to brighten up to 13 mag in early summer in 2026. Now it is 15.9 mag (May 14, Ken-ichi Kadota). It stays 15 mag for a while. In the Northern Hemisphere, it stays observable in good condition. 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 14  22 19.07   24 29.4   4.276   4.480    95   15.2   2:58 (286, 64)  
June 21  22 12.77   24 55.3   4.127   4.444   101   15.1   2:59 (295, 70)  

* 65P/Gunn

Now it is 15.2 mag (June 3, Thomas Lehmann). It stays 16 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)  
June 14  18 50.74  -30 28.6   1.949   2.926   160   15.1   1:23 (  0, 25)  
June 21  18 45.84  -30 58.0   1.926   2.926   166   15.1   0:51 (  0, 24)  

* C/2014 UN271 ( Bernardinelli-Bernstein )

Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 14.7 mag (May 24, 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. 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 14   4 41.30  -65 37.7  15.021  15.044    89   15.2   2:58 (331,-45)  
June 21   4 46.79  -65 47.5  14.982  15.021    90   15.1   2:59 (330,-43)  

* C/2025 F2 ( SWAN )

It brightened rapidly up to 7.8 mag on Apr. 8 (Osamu Miyazaki). The nucleus was disintegrated, however, its remnant had been visible until mid May. Fading rapidly. It will be fainter than 18 mag in August. In the Northern Hemisphere, it will never be observable after this. 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 14   5 44.45  -23 58.3   1.533   1.128    47   15.2  21:01 ( 91,-47)  
June 21   5 52.18  -28  2.4   1.610   1.260    51   15.6   2:59 (273,-51)  

* 43P/Wolf-Harrington

Now it is 16.5 mag (Apr. 7, Alfons Diepvens). It stays 15 mag for a while. Now it is not observable. It will appear in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   5 55.97   20 20.4   3.477   2.472     6   15.3  21:01 (130,-16)  
June 21   6 10.59   20  7.0   3.477   2.465     4   15.3  21:04 (133,-19)  

* C/2024 J3 ( ATLAS )

It will brighten up to 13 mag in 2026. Now it is 15.9 mag (June 2, Thomas Lehmann). 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 14  19 30.19  -18 59.9   4.969   5.881   151   15.4   2:02 (  0, 36)  
June 21  19 25.38  -18 29.0   4.880   5.840   159   15.3   1:30 (  0, 37)  

* 49P/Arend-Rigaux

Now it is 14.5 mag (May 23, Thomas Lehmann). Fading gradually. It will be fainter than 18 mag in August. It will be unobservable in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   7 49.09   24 42.1   2.364   1.595    31   15.4  21:01 (116,  6)  
June 21   8 11.77   24 29.7   2.421   1.629    30   15.6  21:04 (117,  4)  

* C/2023 C2 ( ATLAS )

It brightened up to 12.7 mag in 2024 summer (Aug. 7, 2024, Thomas Lehmann). Now it is 15.5 mag (June 4, Toshihiko Ikemura, Hirohisa Sato). It stays 16 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14  23 35.52   40 28.0   3.407   3.275    73   15.5   2:58 (247, 53)  
June 21  23 38.75   42 40.0   3.390   3.325    77   15.6   2:59 (244, 58)  

* C/2024 J2 ( Wierzchos )

Brightened rapidly. Now it is 14.6 mag (Jan. 31, Thomas Lehmann). 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 14   2  9.14    6 45.1   2.600   2.108    50   15.6   2:58 (267,  8)  
June 21   2 19.36    4 52.8   2.554   2.153    55   15.7   2:59 (271, 10)  

* C/2023 T3 ( Fuls )

Now it is 15.3 mag (May 4, Toshiyuki Takahashi). Fading slowly. In the Northern Hemisphere, it will be unobservable in October. 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 14  13 12.59  -24 34.1   3.130   3.767   121   15.9  21:01 ( 20, 27)  
June 21  13 15.94  -23 46.2   3.230   3.789   116   16.0  21:04 ( 27, 26)  

* 47P/Ashbrook-Jackson

Now it is 17.1 mag (May 7, ATLAS Chile). Brightening 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 14  23 13.57  -13 53.3   2.579   2.914    98   16.1   2:58 (313, 27)  
June 21  23 18.02  -13 22.0   2.480   2.903   104   16.0   2:59 (318, 31)  

* C/2024 L5 ( ATLAS )

Now it is 15.3 mag (May 13, Ken-ichi Kadota). Fading slowly. It will be unobservable in July in the Northern Hemisphere, or in August in the Southern Hemisphere. 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 14  11  8.10   -5 42.1   3.445   3.549    87   16.0  21:01 ( 60, 27)  
June 21  11  5.11   -4 41.7   3.602   3.566    79   16.1  21:04 ( 67, 22)  

* P/2023 S1 ( PanSTARRS )

It brightened up to 14.4 mag in winter (Feb. 4, Ken-ichi Kadota). Now it is 16.1 mag (May 20, Thomas Lehmann). Fading slowly. 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 14   9 48.63    8 59.8   2.996   2.700    63   16.0  21:01 ( 86, 21)  
June 21   9 58.27    8  0.8   3.082   2.710    59   16.1  21:04 ( 88, 16)  

* C/2023 H5 ( Lemmon )

Now it is 16.1 mag (May 14, Ken-ichi Kadota). It stays 16 mag for a while. In the Northern Hemisphere, it stays observable in good condition. 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)  
June 14  10 41.93   64 51.1   4.660   4.315    64   16.3  21:01 (149, 45)  
June 21  10 46.67   64 35.9   4.708   4.313    61   16.3  21:04 (148, 42)  

* C/2023 F3 ( ATLAS )

Now it is 16.2 mag (May 8, Ken-ichi Kadota). It stays 17 mag for a while. In the Northern Hemisphere, it will be unobservable soon. 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)  
June 14  10 36.49  -28 22.0   5.182   5.285    90   16.3  21:01 ( 49,  6)  
June 21  10 35.64  -27 14.7   5.304   5.295    83   16.4  21:04 ( 55,  1)  

* C/2025 K1 ( ATLAS )

It is expected to brighten up to 7.5 mag in October. Now it is 16.8 mag (June 4, Toshihiko Ikemura, Hirohisa Sato). It will brighten rapidly after this. 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. But it will be observable again in June in the Northern Hemisphere, or in August in the Southern Hemisphere. It is not observable for a month around the perihelion passage. But in the Northern Hemisphere, it stays observable in good condition until mid September and after late October. In the Southern Hemisphere, it is observable only before the perihelion passage.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14  22 23.56   18  5.5   1.983   2.336    97   16.9   2:58 (295, 59)  
June 21  22 19.25   19 13.8   1.766   2.232   103   16.4   2:59 (304, 66)  

* C/2022 R6 ( PanSTARRS )

Now it is 16.2 mag (May 13, ATLAS South Africa). 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 unobservable in July. But it will be observable again in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   7 25.56  -11 41.1   7.261   6.584    45   16.5  21:01 ( 90,-20)  
June 21   7 30.74  -11 17.2   7.308   6.581    41   16.5  21:04 ( 94,-25)  

* 88P/Howell

It will brighten up to 9 mag in 2026 spring. Now it is 17.7 mag (May 14, Ken-ichi Kadota). Brightening gradually. It will be getting lower gradually after this, and it will be unobservable in August 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 14  10 34.64   12 55.3   2.996   2.862    72   16.7  21:01 ( 83, 32)  
June 21  10 40.45   12 10.9   3.047   2.821    67   16.6  21:04 ( 86, 27)  

* 496P/2024 S3 ( Hill )

First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 16.0 mag (May 11, 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. It stays extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   9 21.85   27 59.3   2.398   1.949    52   16.9  21:01 (107, 25)  
June 21   9 40.08   26 20.7   2.486   1.992    50   17.2  21:04 (107, 22)  

* C/2019 E3 ( ATLAS )

Very far object. Now it is 16.9 mag (Dec. 20, 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 14   1 30.15  -53 39.0  10.670  10.761    92   17.0   2:58 (322,-20)  
June 21   1 30.87  -53 53.4  10.615  10.772    96   17.0   2:59 (325,-17)  

* C/2024 T5 ( ATLAS )

Now it is 18.0 mag (Feb. 2, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in July. In the Southern Hemisphere, it stays observable in good condition. It is expected to brighten up to 13 mag in winter between 2026 and 2027.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   2 45.09  -37 15.1   7.109   6.859    71   17.1   2:58 (300,-23)  
June 21   2 50.30  -37 21.9   7.005   6.815    75   17.1   2:59 (302,-19)  

* C/2020 V2 ( ZTF )

It was observed at 9-10 mag for a long time in 2023. Now it is 15.5 mag (June 6, Martin Masek). It stays 18 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. It is brighter than this ephemeris recently.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14  22  1.12  -70 33.7   7.071   7.617   119   17.1   2:58 (352,-17)  
June 21  21 52.39  -71 29.2   7.082   7.668   121   17.1   2:59 (355,-17)  

* 362P/(457175) 2008 GO98

Now it is 18.6 mag (June 4, Toshihiko Ikemura, Hirohisa Sato). 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 14  21 54.56    3 49.2   2.833   3.320   109   17.1   2:58 (322, 53)  
June 21  21 55.18    4 10.2   2.763   3.336   115   17.1   2:59 (332, 56)  

* C/2021 S3 ( PanSTARRS )

It brightened up to 9.6 mag from February to March in 2024 (Feb. 25, 2024, Thomas Lehmann). Now it is 17.6 mag (June 4, Toshihiko Ikemura, Hirohisa Sato). It stays 17 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 14  23 42.39   41 36.3   5.988   5.763    72   17.2   2:58 (245, 52)  
June 21  23 43.40   42 13.6   5.968   5.825    77   17.2   2:59 (244, 57)  

* 302P/Lemmon-PanSTARRS

Now it is 17.3 mag (Oct. 31, ATLAS Chile). It stays 17 mag for a while. 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 14   0 25.98   -1 50.5   3.383   3.318    77   17.3   2:58 (290, 23)  
June 21   0 31.94   -1 26.1   3.293   3.322    82   17.2   2:59 (294, 28)  

* C/2019 L3 ( ATLAS )

It brightened up to 8.3 mag in 2021-2022 winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is 17.7 mag (May 13, Jean-Claude Merlin). It stays 18 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 14  11 51.23  -55 47.4   9.963  10.388   112   17.3  21:01 ( 21, -7)  
June 21  11 52.30  -55 19.2  10.067  10.431   108   17.3  21:04 ( 25, -9)  

* C/2024 G2 ( ATLAS )

Now it is 17.3 mag (May 6, ATLAS Chile). It stays 18 mag for a while. 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 14  11  4.10  -23 24.9   5.185   5.348    93   17.4  21:01 ( 48, 13)  
June 21  11  4.79  -22  5.5   5.298   5.349    87   17.4  21:04 ( 54, 10)  

* C/2024 G6 ( ATLAS )

Now it is 16.5 mag (June 1, Toshihiko Ikemura, Hirohisa Sato). It stays 18 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 14  16 24.10  -19  9.8   5.668   6.652   164   17.5  22:52 (  0, 36)  
June 21  16 18.37  -18 22.8   5.697   6.640   156   17.5  22:19 (  0, 37)  

* C/2024 X2 ( ATLAS )

Now it is 17.3 mag (May 6, ATLAS Chile). It stays 18 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 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 14   7 59.43  -19 29.8   4.147   3.682    56   17.5  21:01 ( 78,-18)  
June 21   8  4.88  -17 58.8   4.221   3.679    51   17.6  21:04 ( 83,-22)  

* C/2024 G4 ( PanSTARRS )

Now it is 17.9 mag (June 4, Toshihiko Ikemura, Hirohisa Sato). It stays 18 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 14  16 51.80   17 16.7   4.553   5.356   138   17.6  23:20 (  0, 72)  
June 21  16 49.33   17  4.4   4.555   5.335   136   17.6  22:50 (  0, 72)  

* C/2023 Q1 ( PanSTARRS )

It brightened up to 13.8 mag in winter (Dec. 30, Thomas Lehmann). Now it is 17.0 mag (May 14, Ken-ichi Kadota). Fading slowly. It will be fainter than 18 mag in July. It locates somewhat low in the Northern Hemisphere. It stays extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   9 47.45   34 24.1   3.734   3.289    56   17.6  21:01 (111, 33)  
June 21   9 56.37   32 40.1   3.849   3.333    52   17.7  21:04 (112, 28)  

* C/2023 V1 ( Lemmon )

Now it is 17.5 mag (Apr. 28, Yasukazu Ikari). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. 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 14  17 14.05   63 27.5   4.938   5.097    93   17.6  23:39 (180, 62)  
June 21  16 55.08   62 53.3   4.944   5.095    92   17.6  22:53 (180, 62)  

* 2024 XK14

Peculiar asteroid moving along a cometary orbit. Michael Mattiazzo detected a 25-arcsec tail on May 31. Now it is 17.8 mag (May 31, Michael Mattiazzo). It will fade out rapidly after this. It will be fainter than 18 mag in July. In the Northern Hemisphere, it will never be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14   4  6.22  -31 53.3   2.418   2.077    58   17.6   2:58 (286,-36)  
June 21   4 19.39  -35  4.1   2.344   2.089    62   17.6   2:59 (291,-35)  

* C/2025 L1 ( ATLAS )

It is expected to brighten up to 13.5 mag and to be observable in good condition in 2026 spring. Now it is 18.1 mag (June 9, Hidetaka Sato). Brightening gradually. 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 14   2 57.24  -51 17.6   3.100   3.118    81   17.9   2:58 (314,-31)  
June 21   3 12.65  -53 19.5   2.974   3.053    84   17.7   2:59 (317,-30)  

* C/2023 U1 ( Fuls )

Now it is 17.3 mag (Mar. 6, ATLAS Chile). It stays 18 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 14   3 22.11  -49 49.1   5.425   5.313    78   17.8   2:58 (311,-34)  
June 21   3 23.97  -50 38.4   5.387   5.332    81   17.8   2:59 (313,-31)  

* 240P/NEAT

It will brighten up to 14 mag and will be observable in good condition from autumn to winter. Brightening 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)  
June 14   2  4.30   -7 58.7   2.935   2.563    58   18.0   2:58 (280,  0)  
June 21   2 15.51   -7  7.8   2.843   2.536    62   17.9   2:59 (281,  4)  

* C/2023 H1 ( PanSTARRS )

Now it is 16.7 mag (May 13, ATLAS South Africa). It stays 18 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 14  20 17.10  -18 51.2   3.896   4.725   140   17.9   2:49 (  0, 36)  
June 21  20 14.97  -18 31.6   3.854   4.745   147   17.9   2:19 (  0, 37)  

* 12P/Pons-Brooks

It returns for the first time in 70 years. It brightened up to 3.7 mag in early April in 2024 (Apr. 6, 2024, Jose Guilherme Aguiar). Now it is 17.4 mag (May 24, Mike Olason). Fading gradually. It will be fainter than 18 mag soon. It stays extremely 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 14  15 48.17  -47 39.5   4.357   5.249   148   17.9  22:17 (  0,  7)  
June 21  15 41.90  -46 42.5   4.454   5.311   144   18.0  21:43 (  0,  8)  

* C/2022 U1 ( Leonard )

Now it is 17.6 mag (Apr. 26, Yasukazu Ikari). Fading slowly. It stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 14  18 54.85   15 17.6   4.778   5.555   136   17.9   1:27 (  0, 70)  
June 21  18 47.03   14 50.4   4.775   5.591   139   18.0   0:52 (  0, 70)  

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