1.

Comet C/2025 R3 (PANSTARRS) passes perigee Comet C/2025 R3 (PANSTARRS) makes its closest approach to the Earth. Sun, 26 Apr 2026 (41 days ago) in Cetus

2.

Comet 141P/Machholz passes perihelion Comet 141P/Machholz makes its closest approach to the Sun. Thu, 23 Apr 2026 (44 days ago) in Aries

3.

Comet C/2025 R3 (PANSTARRS) passes perihelion Comet C/2025 R3 (PANSTARRS) makes its closest approach to the Sun. Sun, 19 Apr 2026 (48 days ago) in Pisces

4.

Comet C/2026 A1 (MAPS) passes perigee Comet C/2026 A1 (MAPS) makes its closest approach to the Earth. Mon, 06 Apr 2026 (61 days ago) in Pisces

5.

Comet C/2026 A1 (MAPS) passes perihelion Comet C/2026 A1 (MAPS) makes its closest approach to the Sun. Sat, 04 Apr 2026 (63 days ago) in Pisces

6.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Wed, 18 Mar 2026 (80 days ago) in Capricornus

7.

Comet C/2024 E1 (Wierzchos) passes perigee Comet C/2024 E1 (Wierzchos) makes its closest approach to the Earth. Tue, 17 Feb 2026 (109 days ago) in Sculptor

8.

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 (131 days ago) in Grus

9.

Comet C/2024 E1 (Wierzchos) passes perihelion Comet C/2024 E1 (Wierzchos) makes its closest approach to the Sun. Tue, 20 Jan 2026 (137 days ago) in Microscopium

10.

Comet 24P/Schaumasse passes perihelion Comet 24P/Schaumasse makes its closest approach to the Sun. Thu, 08 Jan 2026 (149 days ago) in Virgo

11.

Comet C/2025 T1 (ATLAS) passes perihelion Comet C/2025 T1 (ATLAS) makes its closest approach to the Sun. Tue, 02 Dec 2025 (186 days ago) in Vulpecula

12.

Comet 210P/Christensen passes perihelion Comet 210P/Christensen makes its closest approach to the Sun. Sat, 22 Nov 2025 (196 days ago) in Libra

13.

Comet C/2025 V1 (Borisov) passes perihelion Comet C/2025 V1 (Borisov) makes its closest approach to the Sun. Sun, 16 Nov 2025 (202 days ago)

14.

Comet C/2025 A6 (Lemmon) passes perihelion Comet C/2025 A6 (Lemmon) makes its closest approach to the Sun. Sat, 08 Nov 2025 (210 days ago) in Ophiuchus

15.

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 (217 days ago) in Ophiuchus

16.

Comet 3I/ATLAS passes perihelion Comet 3I/ATLAS makes its closest approach to the Sun. Wed, 29 Oct 2025 (220 days ago) in Virgo

17.

Comet C/2025 A6 (Lemmon) passes perigee Comet C/2025 A6 (Lemmon) makes its closest approach to the Earth. Tue, 21 Oct 2025 (228 days ago) in Bootes

18.

Comet C/2025 R2 (SWAN) passes perigee Comet C/2025 R2 (SWAN) makes its closest approach to the Earth. Mon, 20 Oct 2025 (229 days ago) in Sagittarius

19.

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 (235 days ago) in Ophiuchus

20.

Comet C/2025 K1 (ATLAS) passes perihelion Comet C/2025 K1 (ATLAS) makes its closest approach to the Sun. Wed, 08 Oct 2025 (241 days ago) in Corvus