421.

1 Ceres at opposition 1 Ceres lies in the opposite direction to the Sun in the sky, making it closer and brighter than at other times. It is also optimally positioned to be observable for much of the night. Fri, 09 Jan 1981 at 14:50 EDT (15,837 days ago) in Gemini

422.

134340 Pluto at solar conjunction 134340 Pluto is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Tue, 14 Oct 1980 at 20:19 EDT (15,924 days ago) in Virgo

423.

136199 Eris at opposition 136199 Eris lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Tue, 07 Oct 1980 at 06:30 EDT (15,931 days ago) in Cetus

424.

136108 Haumea at solar conjunction 136108 Haumea is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Wed, 10 Sep 1980 at 12:16 EDT (15,958 days ago) in Leo

425.

136472 Makemake at solar conjunction 136472 Makemake is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sat, 16 Aug 1980 at 23:00 EDT (15,983 days ago) in Leo Minor

426.

1 Ceres at solar conjunction 1 Ceres is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Fri, 16 May 1980 at 17:55 EDT (16,075 days ago) in Taurus

427.

134340 Pluto at opposition 134340 Pluto lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Thu, 10 Apr 1980 at 00:41 EDT (16,111 days ago) in Bootes

428.

136199 Eris at solar conjunction 136199 Eris is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 03 Apr 1980 at 13:56 EDT (16,118 days ago) in Cetus

429.

136108 Haumea at opposition 136108 Haumea lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Fri, 07 Mar 1980 at 20:27 EDT (16,145 days ago) in Leo

430.

136472 Makemake at opposition 136472 Makemake lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Wed, 13 Feb 1980 at 03:59 EDT (16,168 days ago) in Leo Minor

431.

134340 Pluto at solar conjunction 134340 Pluto is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sat, 13 Oct 1979 at 00:30 EDT (16,291 days ago) in Bootes

432.

136199 Eris at opposition 136199 Eris lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Sun, 07 Oct 1979 at 18:32 EDT (16,297 days ago) in Cetus

433.

1 Ceres at opposition 1 Ceres lies in the opposite direction to the Sun in the sky, making it closer and brighter than at other times. It is also optimally positioned to be observable for much of the night. Thu, 04 Oct 1979 at 18:39 EDT (16,300 days ago) in Cetus

434.

136108 Haumea at solar conjunction 136108 Haumea is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Mon, 10 Sep 1979 at 07:34 EDT (16,324 days ago) in Leo

435.

136472 Makemake at solar conjunction 136472 Makemake is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 16 Aug 1979 at 13:37 EDT (16,349 days ago) in Leo Minor

436.

134340 Pluto at opposition 134340 Pluto lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Sun, 08 Apr 1979 at 04:22 EDT (16,479 days ago) in Virgo

437.

136199 Eris at solar conjunction 136199 Eris is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Wed, 04 Apr 1979 at 01:50 EDT (16,483 days ago) in Cetus

438.

1 Ceres at aphelion 1 Ceres passes the furthest point along its orbit from the Sun. Wed, 14 Mar 1979 at 11:57 EDT (16,504 days ago) in Aquarius

439.

136108 Haumea at opposition 136108 Haumea lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Wed, 07 Mar 1979 at 16:19 EDT (16,511 days ago) in Leo

440.

1 Ceres at solar conjunction 1 Ceres is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Fri, 16 Feb 1979 at 19:01 EDT (16,530 days ago) in Aquarius