161.

June solstice 21 June will be the longest day of 1991 in the northern hemisphere. Fri, 21 Jun 1991 at 17:25 EDT (12,004 days ago) in Taurus

162.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Wed, 20 Mar 1991 at 22:08 EDT (12,097 days ago) in Pisces

163.

The Earth at perihelion The Earth reaches its closest point to the Sun. Wed, 02 Jan 1991 at 21:59 EDT (12,174 days ago) in Pisces

164.

December solstice 22 December will be the shortest day of 1990 in the northern hemisphere. Fri, 21 Dec 1990 at 22:12 EDT (12,186 days ago) in Sagittarius

165.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Sun, 23 Sep 1990 at 03:01 EDT (12,275 days ago) in Virgo

166.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Wed, 04 Jul 1990 at 01:04 EDT (12,356 days ago) in Pisces

167.

June solstice 21 June will be the longest day of 1990 in the northern hemisphere. Thu, 21 Jun 1990 at 11:38 EDT (12,369 days ago) in Taurus

168.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Tue, 20 Mar 1990 at 16:24 EDT (12,462 days ago) in Pisces

169.

The Earth at perihelion The Earth reaches its closest point to the Sun. Thu, 04 Jan 1990 at 12:22 EDT (12,537 days ago) in Pisces

170.

December solstice 21 December will be the shortest day of 1989 in the northern hemisphere. Thu, 21 Dec 1989 at 16:26 EDT (12,551 days ago) in Sagittarius

171.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Fri, 22 Sep 1989 at 21:23 EDT (12,641 days ago) in Virgo

172.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Tue, 04 Jul 1989 at 07:33 EDT (12,721 days ago) in Pisces

173.

June solstice 21 June will be the longest day of 1989 in the northern hemisphere. Wed, 21 Jun 1989 at 05:56 EDT (12,734 days ago) in Gemini

174.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Mon, 20 Mar 1989 at 10:31 EDT (12,827 days ago) in Pisces

175.

The Earth at perihelion The Earth reaches its closest point to the Sun. Sun, 01 Jan 1989 at 16:52 EDT (12,905 days ago) in Pisces

176.

December solstice 21 December will be the shortest day of 1988 in the northern hemisphere. Wed, 21 Dec 1988 at 10:30 EDT (12,916 days ago) in Sagittarius

177.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Thu, 22 Sep 1988 at 15:30 EDT (13,006 days ago) in Virgo

178.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Tue, 05 Jul 1988 at 19:55 EDT (13,085 days ago) in Pisces

179.

June solstice 21 June will be the longest day of 1988 in the northern hemisphere. Mon, 20 Jun 1988 at 23:58 EDT (13,100 days ago) in Gemini

180.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Sun, 20 Mar 1988 at 04:39 EDT (13,192 days ago) in Pisces