261.

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. Tue, 12 May 1992 at 00:28 EDT (11,733 days ago) in Serpens Caput

262.

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. Mon, 06 Apr 1992 at 14:36 EDT (11,769 days ago) in Cetus

263.

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. Thu, 19 Mar 1992 at 01:22 EDT (11,787 days ago) in Coma Berenices

264.

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, 26 Feb 1992 at 01:32 EDT (11,809 days ago) in Ursa Major

265.

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. Wed, 11 Dec 1991 at 00:23 EDT (11,886 days ago) in Ophiuchus

266.

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. Wed, 13 Nov 1991 at 02:34 EDT (11,914 days ago) in Libra

267.

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. Thu, 10 Oct 1991 at 17:58 EDT (11,948 days ago) in Cetus

268.

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. Sat, 21 Sep 1991 at 18:08 EDT (11,967 days ago) in Coma Berenices

269.

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. Fri, 30 Aug 1991 at 01:37 EDT (11,989 days ago) in Ursa Major

270.

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. Fri, 10 May 1991 at 02:37 EDT (12,101 days ago) in Serpens Caput

271.

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. Tue, 16 Apr 1991 at 09:53 EDT (12,125 days ago) in Virgo

272.

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. Sun, 07 Apr 1991 at 01:50 EDT (12,134 days ago) in Cetus

273.

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. Mon, 18 Mar 1991 at 20:32 EDT (12,154 days ago) in Coma Berenices

274.

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. Sun, 24 Feb 1991 at 17:52 EDT (12,176 days ago) in Ursa Major

275.

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, 10 Nov 1990 at 07:08 EDT (12,282 days ago) in Serpens Caput

276.

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. Wed, 10 Oct 1990 at 06:06 EDT (12,313 days ago) in Cetus

277.

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. Thu, 20 Sep 1990 at 12:50 EDT (12,333 days ago) in Coma Berenices

278.

1 Ceres at perihelion 1 Ceres passes its orbit's closest point to the Sun. Fri, 14 Sep 1990 at 15:01 EDT (12,339 days ago) in Leo

279.

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. Tue, 28 Aug 1990 at 16:43 EDT (12,356 days ago) in Ursa Major

280.

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. Sat, 18 Aug 1990 at 18:15 EDT (12,366 days ago) in Leo