21.

Comet C/2017 K2 (PANSTARRS) passes perihelion Comet C/2017 K2 (PANSTARRS) makes its closest approach to the Sun. Mon, 19 Dec 2022 (502 days ago) in Pavo

22.

Comet C/2022 E3 (ZTF) passes perihelion Comet C/2022 E3 (ZTF) makes its closest approach to the Sun. Thu, 12 Jan 2023 (478 days ago)

23.

Comet C/2022 U2 (ATLAS) passes perihelion Comet C/2022 U2 (ATLAS) makes its closest approach to the Sun. Sat, 14 Jan 2023 (476 days ago) in Cassiopeia

24.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Mon, 23 Jan 2023 (467 days ago) in Sagittarius

25.

Comet 96P/Machholz passes perigee Comet 96P/Machholz makes its closest approach to the Earth. Tue, 31 Jan 2023 (459 days ago) in Aquarius

26.

Comet 96P/Machholz passes perihelion Comet 96P/Machholz makes its closest approach to the Sun. Tue, 31 Jan 2023 (459 days ago) in Aquarius

27.

Comet C/2022 E3 (ZTF) passes perigee Comet C/2022 E3 (ZTF) makes its closest approach to the Earth. Wed, 01 Feb 2023 (458 days ago) in Camelopardalis

28.

Comet C/2022 E3 (ZTF) reaches peak brightness Comet C/2022 E3 (ZTF) is forecast to reach the brightest point in its 2023 apparition. Wed, 01 Feb 2023 (458 days ago) in Camelopardalis

29.

Comet C/2022 A2 (PANSTARRS) passes perihelion Comet C/2022 A2 (PANSTARRS) makes its closest approach to the Sun. Sat, 18 Feb 2023 (441 days ago) in Cygnus

30.

Comet C/2020 V2 (ZTF) passes perihelion Comet C/2020 V2 (ZTF) makes its closest approach to the Sun. Mon, 08 May 2023 (362 days ago) in Aries

31.

Comet C/2023 E1 (ATLAS) passes perihelion Comet C/2023 E1 (ATLAS) makes its closest approach to the Sun. Sat, 01 Jul 2023 (308 days ago)

32.

Comet C/2023 E1 (ATLAS) reaches peak brightness Comet C/2023 E1 (ATLAS) is forecast to reach the brightest point in its 2023 apparition. Sun, 16 Jul 2023 (293 days ago) in Draco

33.

Comet C/2021 T4 (Lemmon) passes perigee Comet C/2021 T4 (Lemmon) makes its closest approach to the Earth. Thu, 20 Jul 2023 (289 days ago) in Telescopium

34.

Comet C/2021 T4 (Lemmon) reaches peak brightness Comet C/2021 T4 (Lemmon) is forecast to reach the brightest point in its 2023 apparition. Thu, 20 Jul 2023 (289 days ago) in Telescopium

35.

Comet C/2021 T4 (Lemmon) passes perihelion Comet C/2021 T4 (Lemmon) makes its closest approach to the Sun. Mon, 31 Jul 2023 (278 days ago) in Norma

36.

Comet C/2023 E1 (ATLAS) passes perigee Comet C/2023 E1 (ATLAS) makes its closest approach to the Earth. Fri, 18 Aug 2023 (260 days ago) in Cygnus

37.

Comet C/2023 P1 (Nishimura) passes perigee Comet C/2023 P1 (Nishimura) makes its closest approach to the Earth. Tue, 12 Sep 2023 (235 days ago) in Leo

38.

Comet C/2023 P1 (Nishimura) passes perihelion Comet C/2023 P1 (Nishimura) makes its closest approach to the Sun. Sun, 17 Sep 2023 (230 days ago) in Virgo

39.

Comet 2P/Encke passes perihelion Comet 2P/Encke makes its closest approach to the Sun. Sun, 22 Oct 2023 (195 days ago) in Virgo

40.

Comet C/2023 H2 (Lemmon) passes perihelion Comet C/2023 H2 (Lemmon) makes its closest approach to the Sun. Sun, 29 Oct 2023 (188 days ago)