1.

Comet C/2020 M3 (ATLAS) passes perihelion Comet C/2020 M3 (ATLAS) makes its closest approach to the Sun. Sun, 25 Oct 2020 (1,279 days ago) in Lepus

2.

Comet C/2020 P1 (NEOWISE) passes perihelion Comet C/2020 P1 (NEOWISE) makes its closest approach to the Sun. Tue, 20 Oct 2020 (1,284 days ago) in Virgo

3.

Comet C/2020 P1 (NEOWISE) passes perigee Comet C/2020 P1 (NEOWISE) makes its closest approach to the Earth. Tue, 13 Oct 2020 (1,291 days ago) in Corvus

4.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Fri, 25 Sep 2020 (1,309 days ago) in Scorpius

5.

Comet 88P/Howell reaches peak brightness Comet 88P/Howell is forecast to reach the brightest point in its 2020 apparition. Thu, 17 Sep 2020 (1,317 days ago) in Scorpius

6.

Comet C/2020 K8 (Catalina-ATLAS) passes perihelion Comet C/2020 K8 (Catalina-ATLAS) makes its closest approach to the Sun. Tue, 15 Sep 2020 (1,319 days ago) in Sextans

7.

Comet C/2020 Q1 (Borisov) passes perihelion Comet C/2020 Q1 (Borisov) makes its closest approach to the Sun. Fri, 14 Aug 2020 (1,351 days ago) in Taurus

8.

Comet 2P/Encke passes perigee Comet 2P/Encke makes its closest approach to the Earth. Tue, 04 Aug 2020 (1,361 days ago) in Corvus

9.

Comet C/2020 F3 (NEOWISE) passes perigee Comet C/2020 F3 (NEOWISE) makes its closest approach to the Earth. Thu, 23 Jul 2020 (1,373 days ago)

10.

Comet C/2020 F3 (NEOWISE) passes perihelion Comet C/2020 F3 (NEOWISE) makes its closest approach to the Sun. Sat, 04 Jul 2020 (1,392 days ago) in Auriga

11.

Comet 2P/Encke passes perihelion Comet 2P/Encke makes its closest approach to the Sun. Thu, 02 Jul 2020 (1,394 days ago) in Gemini

12.

Comet C/2019 U6 (Lemmon) passes perigee Comet C/2019 U6 (Lemmon) makes its closest approach to the Earth. Sun, 28 Jun 2020 (1,398 days ago) in Sextans

13.

Comet C/2019 U6 (Lemmon) reaches peak brightness Comet C/2019 U6 (Lemmon) is forecast to reach the brightest point in its 2020 apparition. Mon, 22 Jun 2020 (1,404 days ago) in Hydra

14.

Comet C/2019 U6 (Lemmon) passes perihelion Comet C/2019 U6 (Lemmon) makes its closest approach to the Sun. Thu, 18 Jun 2020 (1,408 days ago) in Hydra

15.

Comet 58P/Jackson-Neujmin passes perihelion Comet 58P/Jackson-Neujmin makes its closest approach to the Sun. Wed, 27 May 2020 (1,430 days ago) in Pisces

16.

Comet C/2017 T2 (PANSTARRS) reaches peak brightness Comet C/2017 T2 (PANSTARRS) is forecast to reach the brightest point in its 2020 apparition. Fri, 15 May 2020 (1,442 days ago) in Camelopardalis

17.

Comet C/2017 T2 (PANSTARRS) passes perihelion Comet C/2017 T2 (PANSTARRS) makes its closest approach to the Sun. Tue, 05 May 2020 (1,452 days ago) in Camelopardalis

18.

Comet 2I/Borisov passes perihelion Comet 2I/Borisov makes its closest approach to the Sun. Sun, 08 Dec 2019 (1,601 days ago) in Crater

19.

Comet C/2018 N2 (ASASSN) passes perihelion Comet C/2018 N2 (ASASSN) makes its closest approach to the Sun. Mon, 11 Nov 2019 (1,628 days ago) in Andromeda

20.

Comet C/2018 W2 (Africano) passes perigee Comet C/2018 W2 (Africano) makes its closest approach to the Earth. Fri, 27 Sep 2019 (1,673 days ago) in Pegasus