1.

Comet 1I/`Oumuamua passes perihelion Comet 1I/`Oumuamua makes its closest approach to the Sun. Sat, 09 Sep 2017 (2,433 days ago) in Leo

2.

Comet 96P/Machholz passes perihelion Comet 96P/Machholz makes its closest approach to the Sun. Sat, 21 Oct 2017 (2,391 days ago) in Virgo

3.

Comet 21P/Giacobini-Zinner passes perihelion Comet 21P/Giacobini-Zinner makes its closest approach to the Sun. Thu, 13 Sep 2018 (2,064 days ago) in Auriga

4.

Comet 38P/Stephan-Oterma passes perihelion Comet 38P/Stephan-Oterma makes its closest approach to the Sun. Tue, 13 Nov 2018 (2,003 days ago) in Gemini

5.

Comet C/2018 V1 (Machholz-Fujikawa-Iwamoto) passes perigee Comet C/2018 V1 (Machholz-Fujikawa-Iwamoto) makes its closest approach to the Earth. Mon, 26 Nov 2018 (1,990 days ago)

6.

Comet C/2018 L2 (ATLAS) passes perihelion Comet C/2018 L2 (ATLAS) makes its closest approach to the Sun. Fri, 30 Nov 2018 (1,986 days ago) in Ophiuchus

7.

Comet C/2018 V1 (Machholz-Fujikawa-Iwamoto) passes perihelion Comet C/2018 V1 (Machholz-Fujikawa-Iwamoto) makes its closest approach to the Sun. Mon, 03 Dec 2018 (1,983 days ago) in Ophiuchus

8.

Comet 46P/Wirtanen passes perihelion Comet 46P/Wirtanen makes its closest approach to the Sun. Tue, 11 Dec 2018 (1,975 days ago) in Taurus

9.

Comet 46P/Wirtanen reaches peak brightness Comet 46P/Wirtanen is forecast to reach the brightest point in its 2018 apparition. Thu, 13 Dec 2018 (1,973 days ago) in Taurus

10.

Comet 46P/Wirtanen passes perigee Comet 46P/Wirtanen makes its closest approach to the Earth. Thu, 13 Dec 2018 (1,973 days ago) in Taurus

11.

Comet C/2018 Y1 (Iwamoto) passes perihelion Comet C/2018 Y1 (Iwamoto) makes its closest approach to the Sun. Mon, 04 Feb 2019 (1,920 days ago) in Virgo

12.

Comet C/2018 Y1 (Iwamoto) passes perigee Comet C/2018 Y1 (Iwamoto) makes its closest approach to the Earth. Mon, 11 Feb 2019 (1,913 days ago) in Leo

13.

Comet C/2018 Y1 (Iwamoto) reaches peak brightness Comet C/2018 Y1 (Iwamoto) is forecast to reach the brightest point in its 2019 apparition. Mon, 11 Feb 2019 (1,913 days ago) in Leo

14.

Comet C/2018 W1 (Catalina) passes perihelion Comet C/2018 W1 (Catalina) makes its closest approach to the Sun. Sun, 12 May 2019 (1,823 days ago) in Eridanus

15.

Comet C/2018 R3 (Lemmon) passes perihelion Comet C/2018 R3 (Lemmon) makes its closest approach to the Sun. Sat, 08 Jun 2019 (1,796 days ago) in Camelopardalis

16.

Comet 168P/Hergenrother passes perihelion Comet 168P/Hergenrother makes its closest approach to the Sun. Fri, 09 Aug 2019 (1,734 days ago) in Taurus

17.

Comet C/2018 W2 (Africano) passes perihelion Comet C/2018 W2 (Africano) makes its closest approach to the Sun. Thu, 05 Sep 2019 (1,707 days ago) in Perseus

18.

Comet 260P/McNaught passes perihelion Comet 260P/McNaught makes its closest approach to the Sun. Wed, 11 Sep 2019 (1,701 days ago) in Aries

19.

Comet C/2018 W2 (Africano) reaches peak brightness Comet C/2018 W2 (Africano) is forecast to reach the brightest point in its 2019 apparition. Thu, 26 Sep 2019 (1,686 days ago) in Pegasus

20.

Comet C/2018 W2 (Africano) passes perigee Comet C/2018 W2 (Africano) makes its closest approach to the Earth. Fri, 27 Sep 2019 (1,685 days ago) in Pegasus