1.

Comet C/2018 N2 (ASASSN) passes perihelion Comet C/2018 N2 (ASASSN) makes its closest approach to the Sun. Mon, 11 Nov 2019 (1,650 days ago) in Andromeda

2.

Comet 2I/Borisov passes perihelion Comet 2I/Borisov makes its closest approach to the Sun. Sun, 08 Dec 2019 (1,623 days ago) in Crater

3.

Comet C/2017 T2 (PANSTARRS) passes perihelion Comet C/2017 T2 (PANSTARRS) makes its closest approach to the Sun. Tue, 05 May 2020 (1,474 days ago) in Camelopardalis

4.

Comet C/2017 T2 (PANSTARRS) reaches peak brightness Comet C/2017 T2 (PANSTARRS) is forecast to reach the brightest point in its 2020 apparition. Sat, 16 May 2020 (1,463 days ago) in Camelopardalis

5.

Comet 58P/Jackson-Neujmin passes perihelion Comet 58P/Jackson-Neujmin makes its closest approach to the Sun. Wed, 27 May 2020 (1,452 days ago) in Pisces

6.

Comet C/2019 U6 (Lemmon) passes perihelion Comet C/2019 U6 (Lemmon) makes its closest approach to the Sun. Thu, 18 Jun 2020 (1,430 days ago) in Hydra

7.

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 (1,426 days ago) in Hydra

8.

Comet C/2019 U6 (Lemmon) passes perigee Comet C/2019 U6 (Lemmon) makes its closest approach to the Earth. Sun, 28 Jun 2020 (1,420 days ago) in Sextans

9.

Comet 2P/Encke passes perihelion Comet 2P/Encke makes its closest approach to the Sun. Thu, 02 Jul 2020 (1,416 days ago) in Gemini

10.

Comet C/2020 F3 (NEOWISE) passes perihelion Comet C/2020 F3 (NEOWISE) makes its closest approach to the Sun. Sat, 04 Jul 2020 (1,414 days ago) in Auriga

11.

Comet C/2020 F3 (NEOWISE) passes perigee Comet C/2020 F3 (NEOWISE) makes its closest approach to the Earth. Thu, 23 Jul 2020 (1,395 days ago)

12.

Comet 2P/Encke passes perigee Comet 2P/Encke makes its closest approach to the Earth. Tue, 04 Aug 2020 (1,383 days ago) in Corvus

13.

Comet C/2020 Q1 (Borisov) passes perihelion Comet C/2020 Q1 (Borisov) makes its closest approach to the Sun. Fri, 14 Aug 2020 (1,373 days ago) in Taurus

14.

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 (1,341 days ago) in Sextans

15.

Comet 88P/Howell reaches peak brightness Comet 88P/Howell is forecast to reach the brightest point in its 2020 apparition. Wed, 16 Sep 2020 (1,340 days ago) in Scorpius

16.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Fri, 25 Sep 2020 (1,331 days ago) in Scorpius

17.

Comet C/2020 P1 (NEOWISE) passes perigee Comet C/2020 P1 (NEOWISE) makes its closest approach to the Earth. Tue, 13 Oct 2020 (1,313 days ago) in Corvus

18.

Comet C/2020 P1 (NEOWISE) passes perihelion Comet C/2020 P1 (NEOWISE) makes its closest approach to the Sun. Tue, 20 Oct 2020 (1,306 days ago) in Virgo

19.

Comet C/2020 M3 (ATLAS) passes perihelion Comet C/2020 M3 (ATLAS) makes its closest approach to the Sun. Mon, 26 Oct 2020 (1,300 days ago) in Lepus

20.

Comet C/2020 M3 (ATLAS) reaches peak brightness Comet C/2020 M3 (ATLAS) is forecast to reach the brightest point in its 2020 apparition. Mon, 09 Nov 2020 (1,286 days ago) in Orion