161.

Comet 185P/Petriew passes perihelion Comet 185P/Petriew makes its closest approach to the Sun. Sat, 20 Oct 1990 (12,252 days ago) in Leo

162.

Comet 185P/Petriew reaches peak brightness Comet 185P/Petriew is forecast to reach the brightest point in its 1990 apparition. Sat, 06 Oct 1990 (12,266 days ago)

163.

Comet 2P/Encke passes perihelion Comet 2P/Encke makes its closest approach to the Sun. Sat, 06 Oct 1990 (12,266 days ago) in Virgo

164.

Comet 185P/Petriew passes perigee Comet 185P/Petriew makes its closest approach to the Earth. Fri, 05 Oct 1990 (12,267 days ago)

165.

Comet 22P/Kopff passes perihelion Comet 22P/Kopff makes its closest approach to the Sun. Fri, 08 Jun 1990 (12,386 days ago) in Aquarius

166.

Comet 45P/Honda-Mrkos-Pajdusakova passes perihelion Comet 45P/Honda-Mrkos-Pajdusakova makes its closest approach to the Sun. Wed, 04 Apr 1990 (12,451 days ago) in Pisces

167.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Mon, 31 Jul 1989 (12,698 days ago) in Libra

168.

Comet 141P/Machholz passes perigee Comet 141P/Machholz makes its closest approach to the Earth. Tue, 20 Dec 1988 (12,921 days ago) in Tucana

169.

Comet 141P/Machholz reaches peak brightness Comet 141P/Machholz is forecast to reach the brightest point in its 1988 apparition. Thu, 15 Dec 1988 (12,926 days ago) in Grus

170.

Comet 141P/Machholz passes perihelion Comet 141P/Machholz makes its closest approach to the Sun. Fri, 18 Nov 1988 (12,953 days ago) in Aquila

171.

Comet 15P/Finlay passes perihelion Comet 15P/Finlay makes its closest approach to the Sun. Sat, 27 Aug 1988 (13,036 days ago) in Taurus

172.

Comet 15P/Finlay reaches peak brightness Comet 15P/Finlay is forecast to reach the brightest point in its 1988 apparition. Thu, 11 Aug 1988 (13,052 days ago) in Taurus

173.

Comet 15P/Finlay passes perigee Comet 15P/Finlay makes its closest approach to the Earth. Wed, 27 Jul 1988 (13,067 days ago) in Cetus

174.

Comet 66P/duToit passes perihelion Comet 66P/duToit makes its closest approach to the Sun. Wed, 15 Jun 1988 (13,109 days ago) in Phoenix

175.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Sat, 14 Nov 1987 (13,323 days ago) in Sagittarius

176.

Comet 19P/Borrelly passes perihelion Comet 19P/Borrelly makes its closest approach to the Sun. Thu, 29 Oct 1987 (13,339 days ago) in Gemini

177.

Comet 2P/Encke passes perihelion Comet 2P/Encke makes its closest approach to the Sun. Wed, 17 Jun 1987 (13,473 days ago) in Gemini

178.

Comet 26P/Grigg-Skjellerup passes perihelion Comet 26P/Grigg-Skjellerup makes its closest approach to the Sun. Mon, 27 Apr 1987 (13,524 days ago) in Virgo

179.

Comet 1P/Halley passes perigee Comet 1P/Halley makes its closest approach to the Earth. Thu, 24 Apr 1986 (13,892 days ago) in Circinus

180.

Comet 1P/Halley passes perihelion Comet 1P/Halley makes its closest approach to the Sun. Thu, 06 Mar 1986 (13,941 days ago) in Aquarius