Weekly Information about Bright Comets (2024 July 27: South)

Japanese version Home page	Updated on July 27, 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.

13P/Olbers It returned for the first time in 68 years. Now it is 7.0 mag (July 24, Virgilio Gonano). It will fade out rapidly after this. In the Northern Hemisphere, it will be unobservable in November. 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 27 10 53.13 36 56.1 1.902 1.245 36 7.0 18:42 (135, -2) Aug. 3 11 26.72 33 55.0 1.921 1.283 37 7.2 18:46 (133, 0) 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 9.1 mag (July 22, Chris Wyatt). It will brighten rapidly after this. 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. 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 27 10 57.86 1 2.1 2.042 1.447 41 8.8 18:42 (108, 22) Aug. 3 10 54.78 0 21.2 2.029 1.324 34 8.5 18:46 (102, 16) 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 8.8 mag (July 23, Chris Wyatt). It will fade out rapidly after this. 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) July 27 9 58.17 -44 21.9 1.951 1.814 67 8.9 18:42 ( 55, 33) Aug. 3 10 29.57 -45 30.4 2.063 1.905 66 9.3 18:46 ( 54, 33) 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. It will be fainter than 18 mag in September. Now it is not observable. It will appear in August in the Southern Hemisphere. 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) July 27 7 55.96 17 41.5 1.348 0.364 7 15.8 5:30 (256,-11) Aug. 3 9 9.65 17 44.2 1.136 0.142 3 11.3 18:46 (102,-14) C/2023 R2 ( PanSTARRS ) It brightens up to 11 mag in August. It will turn to fade out rapidly after the peak. 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 27 8 52.90 6 8.4 1.898 0.951 14 11.7 18:42 ( 94, -5) Aug. 3 9 27.20 5 45.8 1.868 0.920 14 11.5 18:46 ( 94, -4) C/2023 V4 ( Camarasa-Duszanowicz ) It brightened very rapidly up to 10.0 mag in June (June 11, Virgilio Gonano). Now it is 11.7 mag (July 9, Thomas Lehmann). It will fade out rapidly after this. It will be fainter than 18 mag in November. In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in November. 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 27 11 41.67 49 4.6 1.891 1.447 49 11.9 18:42 (150, -5) Aug. 3 12 14.62 44 30.3 1.956 1.516 49 12.3 18:46 (147, -1) 154P/Brewington Now it is 13.5 mag (July 6, Hiroshi Abe). 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 27 5 28.18 35 38.7 2.231 1.629 42 12.3 5:30 (222, 3) Aug. 3 5 51.65 36 14.5 2.225 1.655 44 12.7 5:25 (221, 2) C/2022 E2 ( ATLAS ) Now it is 12.8 mag (May 31, Hiroshi Abe). It stays 12 mag for a while. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it is not observable now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 7 19.69 39 11.6 4.592 3.693 24 12.6 5:30 (233,-16) Aug. 3 7 23.17 39 58.1 4.533 3.686 29 12.6 5:25 (230,-14) C/2023 C2 ( ATLAS ) Now it is 13.3 mag (June 30, 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 27 15 39.86 -61 12.8 2.076 2.677 115 12.9 19:20 ( 0, 64) Aug. 3 15 48.26 -58 33.8 2.088 2.642 112 12.8 19:00 ( 0, 67) 46P/Wirtanen The condition is bad in this apparition. It must have brightened up to 10 mag in early summer, however, it is not observable at all. Fading rapidly. 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 27 9 20.83 21 55.9 2.355 1.385 13 12.9 18:42 (111, -9) Aug. 3 9 44.24 20 25.8 2.416 1.441 12 13.4 18:46 (108, -9) C/2021 S3 ( PanSTARRS ) It brightened up to 9.6 mag from February to March (Feb. 25, Thomas Lehmann). Now it is 12.9 mag (July 18, Ken-ichi Kadota). 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 27 19 38.91 61 49.0 2.259 2.609 98 13.4 23:15 (180, -7) Aug. 3 19 31.69 60 50.0 2.314 2.683 99 13.6 22:41 (180, -6) C/2021 G2 ( ATLAS ) Now it is 14.4 mag (July 22, ATLAS Chile). It stays 14 mag for a while. It will be unobservable in August in the Northern Hemisphere, or in October 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) July 27 12 27.38 -20 5.9 5.231 4.994 71 14.1 18:42 (103, 53) Aug. 3 12 33.13 -19 44.3 5.323 4.991 65 14.1 18:46 ( 99, 47) 29P/Schwassmann-Wachmann 1 Now it is not observable. It will appear in September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 9 2.73 16 29.7 7.220 6.219 9 14.2 18:42 (103, -9) Aug. 3 9 7.87 16 3.6 7.233 6.221 3 14.3 18:46 (100,-14) 37P/Forbes It will brighten up to 14 mag from summer to autumn. Now it is 16.1 mag (July 18, ATLAS Chile). It stays 14 mag for a while. 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) July 27 13 27.45 -19 30.4 1.582 1.779 83 14.5 18:42 (120, 64) Aug. 3 13 41.21 -20 12.9 1.614 1.753 80 14.3 18:46 (113, 61) C/2020 V2 ( ZTF ) It was observed at 9-10 mag for a long time in 2023. Now it is 14.7 mag (July 13, 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 27 0 14.22 -63 49.5 4.512 5.116 121 14.4 3:55 ( 0, 61) Aug. 3 0 2.87 -65 34.1 4.553 5.172 122 14.4 3:17 ( 0, 60) 146P/Shoemaker-LINEAR Now it is 15 mag (July 12, Giuseppe Pappa). 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 27 3 35.15 -0 10.7 1.323 1.424 73 14.7 5:30 (221, 47) Aug. 3 3 53.70 2 10.3 1.292 1.420 74 14.7 5:25 (218, 46) 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 27 2 12.93 6 25.9 1.732 2.022 90 14.8 5:30 (189, 48) Aug. 3 2 21.19 7 0.9 1.684 2.047 95 14.9 5:25 (183, 48) 192P/Shoemaker-Levy 1 Now it is 16.1 mag (July 21, Slooh.com Canary Islands Observatory). It will fade out rapidly after this. It will be fainter than 18 mag in November. 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 27 4 57.59 21 26.1 2.146 1.660 48 14.9 5:30 (226, 18) Aug. 3 5 14.30 23 4.2 2.139 1.701 51 15.0 5:25 (224, 18) C/2022 S4 ( Lemmon ) Now it is 16.5 mag (June 20, Thomas Lehmann). It stays 16 mag for a while. In the Northern Hemisphere, it is not observable now. The brightness evolution is slower than originally expected. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 6 41.14 -57 48.4 2.751 2.763 80 14.9 5:30 (320, 38) Aug. 3 7 13.01 -59 50.6 2.756 2.766 79 15.0 5:25 (323, 37) 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 15.5 mag (July 20, ATLAS Chile). 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 27 23 3.30 -3 51.5 4.165 4.972 138 15.1 2:44 (180, 59) Aug. 3 23 1.93 -3 52.3 4.065 4.936 145 15.0 2:16 (180, 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 27 14 43.08 -28 46.1 1.097 1.651 102 15.1 18:42 (146, 83) Aug. 3 15 6.25 -28 24.6 1.194 1.709 101 15.7 18:46 (136, 81) C/2022 L2 ( ATLAS ) Now it is 15.5 mag (July 8, Thomas Lehmann). It stays 16 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in October. 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) July 27 9 45.77 -22 34.4 3.658 3.043 46 15.2 18:42 ( 76, 21) Aug. 3 9 47.07 -22 50.9 3.749 3.077 42 15.3 18:46 ( 72, 15) 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. In the Northern Hemisphere, it will be getting higher gradually. 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) July 27 6 11.16 16 25.4 7.220 6.383 32 15.3 5:30 (242, 9) Aug. 3 6 14.28 16 37.1 7.211 6.440 37 15.3 5:25 (239, 13) 32P/Comas Sola Now it is 14.7 mag (May 31, Hiroshi Abe). Fading slowly. Now it is not observable. It will appear in October in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 9 42.13 21 6.2 3.145 2.202 18 15.3 18:42 (113, -4) Aug. 3 9 57.57 19 45.5 3.188 2.226 15 15.4 18:46 (109, -7) 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 will be unobservable in August. But it will be observable again 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 27 6 3.99 3 18.8 7.008 6.241 38 15.4 5:30 (251, 19) Aug. 3 6 9.01 3 23.1 6.926 6.217 42 15.3 5:25 (248, 23) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 16.0 mag (July 22, ATLAS Chile). 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 27 4 10.97 -64 3.0 15.980 16.126 96 15.6 5:30 (335, 54) Aug. 3 4 13.72 -64 29.7 15.939 16.102 97 15.6 5:25 (338, 55) 30P/Reinmuth 1 Now it is 16.5 mag (Apr. 3, Taras Prystavski). It stays 16 mag for a while. Now it is not observable. It will appear in September 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) July 27 8 4.91 20 14.8 2.832 1.822 5 15.6 5:30 (255,-14) Aug. 3 8 24.27 19 32.3 2.819 1.817 7 15.6 5:25 (255,-13) 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 (July 16, 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 27 11 4.51 -46 15.4 8.580 8.369 74 15.7 18:42 ( 57, 44) Aug. 3 11 9.06 -46 13.1 8.693 8.413 70 15.7 18:46 ( 56, 40) P/2024 FG9 ( Nanshan-Hahn ) Alan Hale reported its cometary appearance. Now it is 15.1 mag (July 4, Ken-ichi Kadota). It will fade out rapidly after this. It will be fainter than 18 mag in October. In the Northern Hemisphere, it will never be observable after this. 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 27 10 37.69 7 24.1 2.467 1.723 34 15.7 18:42 (110, 15) Aug. 3 10 55.72 5 36.4 2.521 1.749 32 15.9 18:46 (106, 13) 299P/Catalina-PanSTARRS It brightened very rapidly in outburst in late May. Now it is 15.6 mag (July 11, Giuseppe Pappa). 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 27 15 28.91 -23 5.2 2.674 3.188 111 15.7 19:08 (180, 78) Aug. 3 15 32.55 -22 52.8 2.768 3.193 105 15.8 18:46 (177, 78) 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 27 7 43.96 -33 4.2 6.090 5.543 53 15.9 5:30 (297, 19) Aug. 3 7 46.46 -33 35.3 6.129 5.585 53 15.9 5:25 (296, 23) 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 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 stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 6 35.24 -35 29.1 5.562 5.141 60 16.2 5:30 (293, 33) Aug. 3 6 40.11 -35 30.7 5.593 5.189 61 16.3 5:25 (291, 37) 89P/Russell 2 Now it is 16.7 mag (July 18, ATLAS Chile). Fading gradually. 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 27 23 58.24 -18 33.8 1.610 2.393 129 16.4 3:39 (180, 73) Aug. 3 23 57.75 -18 54.6 1.574 2.411 136 16.4 3:11 (180, 74) C/2023 F3 ( ATLAS ) Now it is 16.8 mag (July 9, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it will be getting lower gradually. But it will be getting higher again after October. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 13 29.05 -43 1.8 5.234 5.386 93 16.4 18:42 ( 59, 70) Aug. 3 13 26.46 -42 13.7 5.335 5.373 86 16.4 18:46 ( 64, 64) 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 16.5 mag (July 11, Giuseppe Pappa). It will brighten rapidly after this. In the Northern Hemisphere, it will never be observable after this. 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 27 12 53.51 -62 50.8 3.007 3.291 97 16.6 18:42 ( 26, 56) Aug. 3 12 57.11 -60 43.9 2.996 3.198 92 16.4 18:46 ( 32, 54) 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 16.3 mag (July 19, ATLAS-HKO, Haleakala). 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 27 17 14.55 32 3.4 6.991 7.420 111 16.5 20:52 (180, 23) Aug. 3 17 13.38 31 36.7 7.085 7.461 107 16.5 20:24 (180, 23) C/2023 Q1 ( PanSTARRS ) Now it is 17.1 mag (July 20, 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 27 3 51.24 42 49.7 3.252 2.909 61 16.7 5:30 (202, 7) Aug. 3 4 4.46 44 39.1 3.150 2.876 65 16.6 5:25 (200, 6) C/2022 R6 ( PanSTARRS ) Now it is 17.7 mag (July 22, 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 stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 6 25.46 -24 1.1 7.654 7.078 52 16.7 5:30 (280, 30) Aug. 3 6 30.62 -24 9.8 7.605 7.061 54 16.6 5:25 (278, 34) 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. 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 27 3 2.55 -65 41.3 10.114 10.402 103 16.7 5:30 (346, 58) Aug. 3 3 1.10 -66 11.6 10.095 10.407 105 16.7 5:25 (351, 58) 472P/2023 RL75 ( NEAT-LINEAR ) Brightening slowly. In the Northern Hemisphere, it will be getting higher gradually. 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) July 27 5 14.37 17 1.1 4.026 3.391 45 16.8 5:30 (232, 19) Aug. 3 5 23.97 16 54.5 3.958 3.392 49 16.7 5:25 (230, 21) C/2024 A1 ( ATLAS ) Now it is 17.3 mag (May 6, ATLAS Chile). Brightening slowly. 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 27 7 29.39 -27 10.7 5.371 4.758 48 16.9 5:30 (290, 19) Aug. 3 7 35.06 -26 46.5 5.340 4.724 48 16.9 5:25 (288, 22) 65P/Gunn Now it is 16.4 mag (July 17, ATLAS-HKO, Haleakala). It stays 17 mag for a while. 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 27 12 57.70 -1 15.6 3.523 3.311 69 16.9 18:42 (132, 46) Aug. 3 13 3.77 -2 10.9 3.599 3.297 64 17.0 18:46 (124, 42) C/2021 X1 ( Maury-Attard ) It brightened up to 14 mag in early 2023 and 2023 autumn. Now it is 17.3 mag (July 13, 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 27 21 41.90 22 52.5 4.302 5.060 133 17.0 1:24 (180, 32) Aug. 3 21 32.04 22 45.5 4.300 5.105 138 17.0 0:46 (180, 32) 328P/LONEOS-Tucker Now it is 17.2 mag (July 21, ATLAS-MLO, Mauna Loa). Fading slowly. It will be fainter than 18 mag in October. 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 27 2 31.24 24 49.8 1.744 1.873 80 17.1 5:30 (191, 29) Aug. 3 2 44.40 27 10.4 1.686 1.874 83 17.0 5:25 (188, 27) 362P/(457175) 2008 GO98 Now it is 16.4 mag (May 4, Toshiyuki Takahashi). It stays 17 mag for a while. In the Northern Hemisphere, it will be getting lower gradually. 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) July 27 15 9.95 -2 29.5 2.490 2.866 101 17.1 18:49 (180, 58) Aug. 3 15 14.57 -3 3.3 2.577 2.867 96 17.2 18:46 (170, 58) 144P/Kushida It brightened up to 8.9 mag from January to March (Feb. 13, Chris Wyatt). Now it is 14.9 mag (June 29, Thomas Lehmann). It will fade out rapidly after this. It will be fainter than 18 mag in August. It stays extremely low in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 11 32.71 0 15.2 2.904 2.375 49 17.2 18:42 (114, 30) Aug. 3 11 44.83 -0 56.3 3.015 2.425 46 17.5 18:46 (109, 27) C/2024 L5 ( ATLAS ) Now it is 17.4 mag (July 22, ATLAS Chile). It stays 17 mag for a while. It will be unobservable in September 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) July 27 15 40.56 -34 8.6 3.483 4.030 115 17.3 19:19 (180, 89) Aug. 3 15 31.22 -33 16.7 3.576 3.997 107 17.3 18:46 (152, 88) C/2024 M1 ( ATLAS ) It is expected to brighten up to 13.5 mag, and it will be observable in good condition in winter. Now it is 17.3 mag (July 19, ATLAS Chile). It will brighten rapidly after this. 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 27 5 41.43 -34 1.5 2.443 2.233 66 17.4 5:30 (286, 43) Aug. 3 5 52.30 -32 55.0 2.379 2.180 66 17.3 5:25 (284, 45) 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 locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 20 56.10 48 28.4 3.843 4.327 111 17.3 0:38 (180, 6) Aug. 3 20 39.97 47 36.3 3.816 4.341 114 17.3 23:48 (180, 7) P/2010 WK ( LINEAR ) First return of a new periodic comet which brightened up to 15 mag in 2010. It has not been observed yet in this apparition. It stays 18 mag for a while. 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 27 5 9.49 28 58.0 2.341 1.783 45 17.4 5:30 (223, 11) Aug. 3 5 30.36 29 47.5 2.307 1.787 47 17.3 5:25 (222, 10) C/2023 R1 ( PanSTARRS ) Now it is 17.6 mag (July 16, ATLAS-MLO, Mauna Loa). 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 27 0 6.40 31 41.0 6.049 6.413 106 17.5 3:47 (180, 23) Aug. 3 0 1.45 31 54.8 5.902 6.369 113 17.4 3:15 (180, 23) 125P/Spacewatch Now it is 17.2 mag (July 19, ATLAS-MLO, Mauna Loa). It will fade out rapidly after this. It will be fainter than 18 mag in August. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 21 41.50 -7 20.2 1.049 2.027 158 17.4 1:23 (180, 62) Aug. 3 21 35.88 -8 39.2 1.066 2.066 166 17.6 0:50 (180, 63) C/2024 J3 ( ATLAS ) Now it is 17.1 mag (July 9, 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 27 18 42.32 -41 27.9 6.960 7.846 148 17.7 22:20 ( 0, 84) Aug. 3 18 38.05 -41 2.7 6.971 7.802 142 17.6 21:49 ( 0, 84) 253P/PanSTARRS Now it is 19.0 mag (July 19, John Maikner). Brightening slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 0 38.31 1 53.0 1.500 2.132 114 17.8 4:19 (180, 53) Aug. 3 0 44.53 2 5.8 1.421 2.116 119 17.6 3:58 (180, 53) 338P/McNaught Now it is 18.2 mag (July 6, Taras Prystavski). It stays 18 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) July 27 2 21.45 15 9.9 2.122 2.288 86 17.9 5:30 (190, 39) Aug. 3 2 28.57 16 59.3 2.041 2.288 90 17.8 5:25 (185, 38) 117P/Helin-Roman-Alu 1 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) July 27 3 23.83 15 47.5 4.546 4.332 71 17.9 5:30 (208, 34) Aug. 3 3 27.91 16 4.9 4.457 4.346 77 17.9 5:25 (203, 36) 208P/McMillan Now it is 18.8 mag (July 6, Taras Prystavski). 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) July 27 0 1.01 -5 35.5 1.802 2.535 125 18.0 3:42 (180, 60) Aug. 3 0 2.22 -5 32.1 1.736 2.532 132 17.9 3:16 (180, 60) P/2003 T12 ( SOHO ) It was observed at three apparitions in 2003, 2012 and 2016. In this apparition, it must have brightened up to 15.5 mag in early summer. But it was not observed due to bad condition. Fading rapidly. Now it is not observable. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) July 27 7 26.09 17 6.8 1.681 0.741 14 18.4 5:30 (253, -5) Aug. 3 7 59.21 15 42.9 1.777 0.821 13 19.6 5:25 (255, -6)