1.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Thu, 29 Jun 2017 (2,487 days ago) in Scorpius

2.

Comet 1I/`Oumuamua passes perihelion Comet 1I/`Oumuamua makes its closest approach to the Sun. Sat, 09 Sep 2017 (2,415 days ago) in Leo

3.

Comet 96P/Machholz passes perihelion Comet 96P/Machholz makes its closest approach to the Sun. Sat, 21 Oct 2017 (2,373 days ago) in Virgo

4.

Comet 21P/Giacobini-Zinner passes perihelion Comet 21P/Giacobini-Zinner makes its closest approach to the Sun. Thu, 13 Sep 2018 (2,046 days ago) in Auriga

5.

Comet 38P/Stephan-Oterma passes perihelion Comet 38P/Stephan-Oterma makes its closest approach to the Sun. Mon, 12 Nov 2018 (1,986 days ago) in Gemini

6.

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 (1,972 days ago)

7.

Comet C/2018 L2 (ATLAS) passes perihelion Comet C/2018 L2 (ATLAS) makes its closest approach to the Sun. Fri, 30 Nov 2018 (1,968 days ago) in Ophiuchus

8.

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 (1,965 days ago) in Ophiuchus

9.

Comet 46P/Wirtanen passes perihelion Comet 46P/Wirtanen makes its closest approach to the Sun. Tue, 11 Dec 2018 (1,957 days ago) in Taurus

10.

Comet 46P/Wirtanen reaches peak brightness Comet 46P/Wirtanen is forecast to reach the brightest point in its 2018 apparition. Thu, 13 Dec 2018 (1,955 days ago) in Taurus

11.

Comet 46P/Wirtanen passes perigee Comet 46P/Wirtanen makes its closest approach to the Earth. Thu, 13 Dec 2018 (1,955 days ago) in Taurus

12.

Comet C/2018 Y1 (Iwamoto) passes perihelion Comet C/2018 Y1 (Iwamoto) makes its closest approach to the Sun. Mon, 04 Feb 2019 (1,902 days ago) in Virgo

13.

Comet C/2018 Y1 (Iwamoto) passes perigee Comet C/2018 Y1 (Iwamoto) makes its closest approach to the Earth. Mon, 11 Feb 2019 (1,895 days ago) in Leo

14.

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 (1,895 days ago) in Leo

15.

Comet C/2018 W1 (Catalina) passes perihelion Comet C/2018 W1 (Catalina) makes its closest approach to the Sun. Sun, 12 May 2019 (1,805 days ago) in Eridanus

16.

Comet C/2018 R3 (Lemmon) passes perihelion Comet C/2018 R3 (Lemmon) makes its closest approach to the Sun. Sat, 08 Jun 2019 (1,778 days ago) in Camelopardalis

17.

Comet 168P/Hergenrother passes perihelion Comet 168P/Hergenrother makes its closest approach to the Sun. Fri, 09 Aug 2019 (1,716 days ago) in Taurus

18.

Comet C/2018 W2 (Africano) passes perihelion Comet C/2018 W2 (Africano) makes its closest approach to the Sun. Thu, 05 Sep 2019 (1,689 days ago) in Perseus

19.

Comet 260P/McNaught passes perihelion Comet 260P/McNaught makes its closest approach to the Sun. Wed, 11 Sep 2019 (1,683 days ago) in Aries

20.

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 (1,668 days ago) in Pegasus