1.

Comet C/2025 R2 (SWAN) passes perihelion Comet C/2025 R2 (SWAN) makes its closest approach to the Sun. Fri, 12 Sep 2025 (217 days ago) in Virgo

2.

Comet C/2025 K1 (ATLAS) passes perihelion Comet C/2025 K1 (ATLAS) makes its closest approach to the Sun. Wed, 08 Oct 2025 (191 days ago) in Corvus

3.

Comet C/2025 R2 (SWAN) reaches peak brightness Comet C/2025 R2 (SWAN) is forecast to reach the brightest point in its 2025 apparition. Tue, 14 Oct 2025 (185 days ago) in Ophiuchus

4.

Comet C/2025 R2 (SWAN) passes perigee Comet C/2025 R2 (SWAN) makes its closest approach to the Earth. Mon, 20 Oct 2025 (179 days ago) in Sagittarius

5.

Comet C/2025 A6 (Lemmon) passes perigee Comet C/2025 A6 (Lemmon) makes its closest approach to the Earth. Tue, 21 Oct 2025 (178 days ago) in Bootes

6.

Comet 3I/ATLAS passes perihelion Comet 3I/ATLAS makes its closest approach to the Sun. Wed, 29 Oct 2025 (170 days ago) in Virgo

7.

Comet C/2025 A6 (Lemmon) reaches peak brightness Comet C/2025 A6 (Lemmon) is forecast to reach the brightest point in its 2025 apparition. Sat, 01 Nov 2025 (167 days ago) in Ophiuchus

8.

Comet C/2025 A6 (Lemmon) passes perihelion Comet C/2025 A6 (Lemmon) makes its closest approach to the Sun. Sat, 08 Nov 2025 (160 days ago) in Ophiuchus

9.

Comet C/2025 V1 (Borisov) passes perihelion Comet C/2025 V1 (Borisov) makes its closest approach to the Sun. Sun, 16 Nov 2025 (152 days ago)

10.

Comet 210P/Christensen passes perihelion Comet 210P/Christensen makes its closest approach to the Sun. Sat, 22 Nov 2025 (146 days ago) in Libra

11.

Comet C/2025 T1 (ATLAS) passes perihelion Comet C/2025 T1 (ATLAS) makes its closest approach to the Sun. Tue, 02 Dec 2025 (136 days ago) in Vulpecula

12.

Comet 24P/Schaumasse passes perihelion Comet 24P/Schaumasse makes its closest approach to the Sun. Thu, 08 Jan 2026 (99 days ago) in Virgo

13.

Comet C/2024 E1 (Wierzchos) passes perihelion Comet C/2024 E1 (Wierzchos) makes its closest approach to the Sun. Tue, 20 Jan 2026 (87 days ago) in Microscopium

14.

Comet C/2024 E1 (Wierzchos) reaches peak brightness Comet C/2024 E1 (Wierzchos) is forecast to reach the brightest point in its 2026 apparition. Mon, 26 Jan 2026 (81 days ago) in Grus

15.

Comet C/2024 E1 (Wierzchos) passes perigee Comet C/2024 E1 (Wierzchos) makes its closest approach to the Earth. Tue, 17 Feb 2026 (59 days ago) in Sculptor

16.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Wed, 18 Mar 2026 (30 days ago) in Capricornus

17.

Comet C/2026 A1 (MAPS) passes perihelion Comet C/2026 A1 (MAPS) makes its closest approach to the Sun. Sat, 04 Apr 2026 (13 days ago) in Pisces

18.

Comet C/2026 A1 (MAPS) passes perigee Comet C/2026 A1 (MAPS) makes its closest approach to the Earth. Mon, 06 Apr 2026 (11 days ago) in Pisces

19.

Comet C/2025 R3 (PANSTARRS) passes perihelion Comet C/2025 R3 (PANSTARRS) makes its closest approach to the Sun. Sun, 19 Apr 2026 (2 days away) in Pisces

20.

Comet 141P/Machholz passes perihelion Comet 141P/Machholz makes its closest approach to the Sun. Thu, 23 Apr 2026 (6 days away) in Aries