Weekly Information about Bright Comets (2025 Aug. 2: North)

Japanese version Home page	Updated on August 8, 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.

C/2025 K1 ( ATLAS ) It is expected to brighten up to 7.5 mag in October. Now it is 12.4 mag (Aug. 5, Osamu Miyazaki). Brightening rapidly. 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 August in the Southern Hemisphere, or in October in the Northern 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) Aug. 2 19 36.63 23 15.0 0.661 1.556 135 12.7 22:46 ( 0, 78) Aug. 9 18 21.22 18 55.4 0.588 1.433 124 12.1 21:03 ( 0, 73) C/2022 N2 ( PanSTARRS ) Now it is 13.9 mag (Aug. 5, Osamu Miyazaki). It stays 14 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) Aug. 2 3 6.04 22 55.1 3.883 3.825 79 13.8 3:33 (276, 51) Aug. 9 3 12.10 23 28.7 3.790 3.826 84 13.7 3:40 (281, 57) C/2024 E1 ( Wierzchos ) It is expected to brighten up to 5 mag in 2026 January. Now it is 13.8 mag (July 24, Osamu Miyazaki). It will brighten rapidly after this. 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) Aug. 2 16 3.63 48 45.6 2.786 2.938 88 13.9 20:38 (139, 70) Aug. 9 15 58.81 46 14.7 2.736 2.848 85 13.7 20:29 (127, 68) C/2021 G2 ( ATLAS ) Now it is 13.1 mag (July 30, Osamu Miyazaki). It stays 14 mag for a while. It will be getting lower gradually after this, and it will be unobservable in October in the Southern Hemisphere, or in November in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 15 7.78 -0 39.7 5.394 5.572 94 13.9 20:38 ( 49, 42) Aug. 9 15 9.80 -0 36.6 5.523 5.596 88 13.9 20:29 ( 53, 40) 240P/NEAT Now it is brighter than originally expected. Now it is 14.0 mag (Aug. 5, Thomas Lehmann). Brightening slowly. It stays observable in good condition. It is expected to brighten up to 12 mag and to be observable in good condition from autumn to winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 3 18.81 -3 10.9 2.270 2.383 83 14.1 3:33 (302, 32) Aug. 9 3 28.22 -2 43.3 2.174 2.360 87 13.9 3:40 (307, 37) 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 16.1 mag (Aug. 5, Thomas Lehmann). Fading slowly. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 18 17.76 25 39.8 4.028 4.661 123 14.2 21:32 ( 0, 81) Aug. 9 18 11.43 24 38.1 4.154 4.737 119 14.3 20:59 ( 0, 80) 29P/Schwassmann-Wachmann 1 In the Northern Hemisphere, it is not observable now, but it will appear in October. In the Southern Hemisphere, it will be unobservable soon. But it will be observable again in October. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 10 17.43 6 53.1 7.199 6.289 24 14.3 20:38 (105, -9) Aug. 9 10 22.06 6 24.0 7.240 6.290 18 14.3 20:29 (107,-12) 217P/LINEAR Now it is 13.8 mag (Aug. 2, Andrew Pearce). Fading gradually. In the Northern Hemisphere, it will be getting higher gradually. 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) Aug. 2 6 14.59 16 4.6 2.187 1.502 36 14.4 3:33 (257, 9) Aug. 9 6 33.72 16 6.1 2.206 1.551 38 14.6 3:40 (259, 12) C/2023 R1 ( PanSTARRS ) It is expected to brighten up to 13 mag in early summer in 2026. Now it is 14.8 mag (July 31, Andrew Pearce). It stays 14 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 21 9.83 24 25.3 3.434 4.238 137 14.5 0:29 ( 0, 80) Aug. 9 20 56.32 23 33.6 3.375 4.205 140 14.4 23:42 ( 0, 79) C/2022 E2 ( ATLAS ) It was observed at 12-13 mag for a long time in 2024. Now it is 14.8 mag (Aug. 5, Thomas Lehmann). 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) Aug. 2 1 22.73 56 9.5 4.581 4.631 86 14.9 3:33 (204, 66) Aug. 9 1 12.66 56 37.5 4.515 4.667 92 14.9 3:40 (189, 68) C/2022 QE78 ( ATLAS ) Now it is 14.6 mag (May 10, Alfons Diepvens). It stays 15 mag for a while. Now it is not observable. It will appear 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) Aug. 2 8 2.05 18 30.2 6.477 5.484 10 14.9 3:33 (239,-10) Aug. 9 8 8.73 18 33.2 6.449 5.482 16 14.9 3:40 (244, -5) C/2024 J3 ( ATLAS ) It will brighten up to 13 mag in 2026. Now it is 15.1 mag (July 18, 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) Aug. 2 18 52.95 -15 17.6 4.678 5.597 152 15.0 22:08 ( 0, 40) Aug. 9 18 48.14 -14 46.4 4.699 5.557 144 15.0 21:36 ( 0, 40) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 15.0 mag (July 29, Andrew Pearce). 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) Aug. 2 5 17.67 -67 34.4 14.786 14.884 93 15.1 3:33 (336,-27) Aug. 9 5 22.12 -67 59.1 14.761 14.862 93 15.1 3:40 (338,-25) 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 be observable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 7 37.39 16 55.9 3.397 2.444 16 15.1 3:33 (244, -6) Aug. 9 7 51.39 16 6.6 3.371 2.444 20 15.1 3:40 (248, -3) 48P/Johnson Now it is 15.3 mag (July 25, Masayoshi Yoshimi). Fading gradually. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 3 23.54 5 44.6 2.276 2.323 79 15.2 3:33 (293, 38) Aug. 9 3 32.17 5 52.6 2.222 2.349 84 15.3 3:40 (298, 43) 65P/Gunn Now it is 14.5 mag (July 6, Thomas Lehmann). Fading slowly. It locates somewhat low in the Northern Hemisphere. But it will become high in summer. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 18 17.49 -32 27.1 2.059 2.935 143 15.2 21:33 ( 0, 23) Aug. 9 18 15.60 -32 27.0 2.120 2.938 136 15.3 21:04 ( 0, 23) 47P/Ashbrook-Jackson Now it is 15.7 mag (July 25, Masayoshi Yoshimi). 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) Aug. 2 23 24.36 -11 41.8 1.984 2.852 141 15.3 2:43 ( 0, 43) Aug. 9 23 21.65 -11 38.3 1.928 2.845 149 15.3 2:13 ( 0, 43) 3I/2025 N1 ( ATLAS ) Third interstellar object in history following 1I/'Oumuamua and 2I/Borisov. The eccentricity is extremely big as 6. It approaches to Sun down to 1.38 a.u. in late October. It is not observable around the perihelion passage. But it is expected to be observable at 12 mag before and after that time. Now it is 16.6 mag (Aug. 1, Michael Jager). It will brighten rapidly after this. It will be getting lower gradually after this, and it will be unobservable in October. But it will be observable again in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 16 48.83 -17 26.5 2.798 3.460 123 15.6 20:38 ( 10, 37) Aug. 9 16 29.59 -16 52.6 2.715 3.234 111 15.3 20:29 ( 21, 35) 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 stayed visible until early summer. 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) Aug. 2 4 12.78 -73 3.9 3.345 3.678 101 15.3 3:33 (344,-25) Aug. 9 4 20.03 -75 17.2 3.432 3.766 101 15.4 3:40 (347,-25) C/2023 C2 ( ATLAS ) It brightened up to 12.7 mag in 2024 summer (Aug. 7, 2024, Thomas Lehmann). Now it is 15.3 mag (Aug. 4, Thomas Lehmann). Fading slowly. 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) Aug. 2 23 35.24 53 56.9 3.321 3.634 99 15.4 2:54 (180, 71) Aug. 9 23 30.17 55 18.8 3.320 3.687 103 15.4 2:21 (180, 70) C/2025 A6 ( Lemmon ) Brightening rapidly. It is expected to brighten up to 6 mag from October to November. Now it is 14.5 mag (Aug. 1, Ddac Mesa Romeu). It will brighten rapidly after this. In the Northern Hemisphere, it will be unobservable in November. But it will be observable again in August. In the Southern Hemisphere, it is not observable now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 7 17.64 28 35.1 2.838 1.949 23 15.9 3:33 (238, 4) Aug. 9 7 25.71 29 9.4 2.672 1.844 28 15.5 3:40 (241, 10) 88P/Howell It will brighten up to 9 mag in 2026 spring. Now it is 17.7 mag (July 24, Thomas Lehmann). It will brighten rapidly after this. 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) Aug. 2 11 27.53 6 27.4 3.248 2.562 40 15.9 20:38 ( 94, 5) Aug. 9 11 37.07 5 18.7 3.260 2.517 36 15.8 20:29 ( 95, 2) 60P/Tsuchinshan 2 The condition is bad. It is hardly observable in this apparition. Fading slowly. Now it is not observable. It will appear in October in the Northern Hemisphere, or in November in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 8 50.94 16 3.7 2.664 1.650 1 15.9 20:38 (126,-19) Aug. 9 9 10.84 14 32.1 2.670 1.657 1 15.9 3:40 (236,-18) C/2024 T5 ( ATLAS ) Now it is 15.9 mag (Aug. 3, ATLAS South Africa). It stays 16 mag for a while. It stays extremely low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition. It is expected to brighten up to 12 mag in winter between 2026 and 2027. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 3 15.67 -39 28.1 6.371 6.557 96 16.2 3:33 (327, 5) Aug. 9 3 18.52 -40 1.6 6.269 6.515 99 16.2 3:40 (332, 8) C/2024 J2 ( Wierzchos ) It brightened rapidly up to 14.6 mag in winter (Jan. 31, Thomas Lehmann). Now it is 15.8 mag (Aug. 2, Thomas Lehmann). Fading gradually. It will be fainter than 18 mag in November. 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) Aug. 2 3 7.58 -10 37.9 2.264 2.460 88 16.2 3:33 (310, 29) Aug. 9 3 12.78 -13 59.2 2.227 2.516 94 16.2 3:40 (319, 31) C/2023 H5 ( Lemmon ) Now it is 16.3 mag (Aug. 5, Alfons Diepvens). It stays 17 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) Aug. 2 11 37.16 63 23.2 4.841 4.321 53 16.5 20:38 (148, 32) Aug. 9 11 48.71 63 16.0 4.839 4.325 54 16.5 20:29 (148, 32) C/2020 V2 ( ZTF ) It was observed at 9-10 mag for a long time in 2023. It is fading very slowly. Now it is 16.2 mag (Aug. 4, Thomas Lehmann). It stays 17 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) Aug. 2 20 24.61 -74 37.2 7.378 7.978 123 16.5 23:40 ( 0,-20) Aug. 9 20 7.93 -74 34.6 7.465 8.029 120 16.6 22:56 ( 0,-19) 302P/Lemmon-PanSTARRS It brightened very rapidly, and it became brighter than expected. Now it is 16.7 mag (Aug. 3, ATLAS-MLO, Mauna Loa). 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) Aug. 2 0 54.09 -0 42.8 2.765 3.354 117 16.6 3:33 (343, 53) Aug. 9 0 55.02 -0 54.7 2.689 3.360 123 16.5 3:40 (358, 54) 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 17.5 mag (Aug. 5, ATLAS Chile). Brightening slowly. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it will be getting lower gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 5 56.41 -68 52.7 2.429 2.665 91 16.7 3:33 (335,-31) Aug. 9 6 47.56 -70 59.1 2.387 2.602 90 16.5 3:40 (337,-32) C/2023 H1 ( PanSTARRS ) Now it is 15.9 mag (July 22, Michael Jager). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 19 56.11 -16 54.9 3.875 4.871 167 16.6 23:11 ( 0, 38) Aug. 9 19 53.14 -16 41.1 3.928 4.894 160 16.6 22:41 ( 0, 38) C/2023 T3 ( Fuls ) Now it is 16.1 mag (July 14, Taras Prystavski). Fading slowly. It will be unobservable in October in the Northern Hemisphere, or in November in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 13 47.87 -21 1.5 3.928 3.936 83 16.6 20:38 ( 51, 14) Aug. 9 13 54.71 -20 51.7 4.051 3.963 77 16.7 20:29 ( 53, 13) C/2023 F3 ( ATLAS ) Now it is 16.9 mag (July 13, 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 September. But it will be observable again in September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 10 40.71 -22 59.3 5.974 5.366 49 16.7 20:38 ( 76,-21) Aug. 9 10 42.60 -22 38.5 6.061 5.380 44 16.7 20:29 ( 78,-24) C/2024 G6 ( ATLAS ) Now it is 17.0 mag (July 25, Ken-ichi Kadota). It stays 17 mag for a while. It will be getting lower gradually after this, and it will be unobservable in October in the Southern Hemisphere, or in November in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 15 53.68 -14 18.2 6.165 6.575 109 16.8 20:38 ( 27, 36) Aug. 9 15 51.54 -13 46.5 6.274 6.565 102 16.8 20:29 ( 33, 35) C/2024 L5 ( ATLAS ) Now it is 17.3 mag (July 6, ATLAS Chile). Fading slowly. It will be fainter than 18 mag in November. In the Northern Hemisphere, it is not observable now, but it will appear in October. In the Southern Hemisphere, it will be unobservable soon. But it will be observable again in October. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 11 3.46 -1 32.8 4.431 3.692 38 16.9 20:38 ( 91, -5) Aug. 9 11 4.84 -1 20.9 4.535 3.716 32 17.0 20:29 ( 94, -8) C/2019 E3 ( ATLAS ) Very far object. Now it is 16.6 mag (July 17, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in November. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 1 25.25 -55 58.2 10.351 10.838 116 16.9 3:33 (350, -2) Aug. 9 1 22.43 -56 20.5 10.326 10.850 118 16.9 3:40 (355, -1) 362P/(457175) 2008 GO98 Now it is 18.3 mag (Aug. 1, Michael Jager). 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) Aug. 2 21 41.80 3 43.4 2.491 3.436 154 17.1 1:01 ( 0, 59) Aug. 9 21 37.61 3 12.0 2.483 3.453 160 17.1 0:29 ( 0, 58) C/2023 U1 ( Fuls ) It continues brightening even after the perihelion passage. Now it is 17.3 mag (Aug. 3, ATLAS South Africa). It stays 17 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) Aug. 2 3 21.13 -58 3.4 5.172 5.454 100 17.1 3:33 (337,-11) Aug. 9 3 16.78 -59 35.0 5.150 5.476 103 17.1 3:40 (342, -9) C/2019 U5 ( PanSTARRS ) Now it is 16.7 mag (Aug. 4, 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 stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 5 58.33 -37 48.6 8.204 7.889 68 17.1 3:33 (304,-18) Aug. 9 5 59.78 -38 19.4 8.206 7.933 70 17.2 3:40 (308,-12) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 16.1 mag (Apr. 7, Ken-ichi Kadota). It stays 17 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) Aug. 2 6 10.00 26 52.7 10.007 9.223 37 17.3 3:33 (248, 16) Aug. 9 6 12.26 27 2.3 9.979 9.273 43 17.3 3:40 (252, 22) 78P/Gehrels 2 It will brighten up to 12 mag in 2026 summer. Now it is 17.1 mag (Aug. 4, Thomas Lehmann). Brightening slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 20 14.68 -10 25.0 2.127 3.129 168 17.5 23:29 ( 0, 45) Aug. 9 20 9.11 -10 46.6 2.113 3.097 163 17.4 22:56 ( 0, 44) 351P/Wiegert-PanSTARRS Now it is brighter than expected. Now it is 17.8 mag (July 29, Giuseppe Pappa). Fading slowly. It will be fainter than 18 mag in September. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 19 52.85 -15 2.6 2.208 3.204 166 17.4 23:08 ( 0, 40) Aug. 9 19 48.47 -14 54.6 2.244 3.212 159 17.4 22:36 ( 0, 40) 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 17.4 mag (July 21, ATLAS-MLO, Mauna Loa). 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) Aug. 2 23 35.77 44 44.4 5.824 6.193 106 17.4 2:54 (180, 80) Aug. 9 23 32.39 44 51.5 5.808 6.254 111 17.4 2:23 (180, 80) C/2024 R4 ( PanSTARRS ) Brightening rapidly. It is expected to brighten up to 13 mag from 2027 to 2028. Now it is 17.3 mag (Aug. 1, Michael Jager). 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) Aug. 2 22 27.57 23 30.5 6.959 7.676 132 17.5 1:46 ( 0, 79) Aug. 9 22 23.09 23 47.4 6.863 7.635 136 17.4 1:14 ( 0, 79) C/2024 G4 ( PanSTARRS ) Now it is 17.9 mag (July 31, ATLAS-MLO, Mauna Loa). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 16 41.80 13 46.1 4.758 5.217 111 17.6 20:38 ( 26, 67) Aug. 9 16 42.33 12 58.2 4.817 5.199 106 17.6 20:29 ( 35, 64) 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. 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 stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 6 34.65 -50 42.1 1.987 1.976 74 17.6 3:33 (314,-29) Aug. 9 6 40.49 -54 31.8 2.050 2.085 77 17.8 3:40 (320,-26) 210P/Christensen It is expected to brighten up to 8 mag from late autumn to early winter. Now it is 18.7 mag (Aug. 3, Francois Kugel). Brightening rapidly. It will be unobservable in October in the Northern Hemisphere, or in November in the Southern Hemisphere. But it will be observable again in November in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 21 31.37 -29 1.3 0.922 1.921 165 18.1 0:51 ( 0, 26) Aug. 9 21 17.39 -31 23.4 0.841 1.838 164 17.6 0:10 ( 0, 24) 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 17.4 mag (Mar. 25, ATLAS South Africa). It stays 18 mag for a while. In the Northern Hemisphere, it is not observable now, but it will be observable 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) Aug. 2 6 29.85 -17 5.1 8.329 7.698 48 17.6 3:33 (282,-13) Aug. 9 6 32.51 -17 10.9 8.328 7.745 51 17.6 3:40 (287, -6) C/2024 G2 ( ATLAS ) Now it is 17.3 mag (July 14, ATLAS South Africa). It stays 18 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 September. But it will be observable again in October. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 2 11 17.91 -16 33.1 5.950 5.361 50 17.7 20:38 ( 77,-10) Aug. 9 11 21.09 -15 58.2 6.040 5.365 44 17.7 20:29 ( 79,-13) C/2025 L2 Now it is 17.3 mag (Aug. 6, ATLAS South Africa). It stays 18 mag for a while. 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) Aug. 2 21 57.13 -35 5.9 2.215 3.173 156 17.7 1:16 ( 0, 20) Aug. 9 21 48.24 -38 30.8 2.188 3.143 156 17.7 0:40 ( 0, 17) C/2023 V1 ( Lemmon ) Now it is 17.7 mag (July 25, ATLAS-HKO, Haleakala). It stays 18 mag for a while. 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) Aug. 2 15 38.80 54 35.3 5.125 5.095 82 17.7 20:38 (145, 63) Aug. 9 15 32.81 52 48.1 5.174 5.097 79 17.7 20:29 (138, 61) C/2023 X2 ( Lemmon ) Now it is 17.5 mag (Mar. 22, S. Shurpakov). It stays 18 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) Aug. 2 6 0.63 63 46.1 5.744 5.212 53 18.0 3:33 (212, 32) Aug. 9 6 12.07 64 55.9 5.670 5.201 57 17.9 3:40 (211, 35)