321.

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 (11,737 days ago) in Serpens Caput

322.

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 (11,773 days ago) in Cetus

323.

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 (11,791 days ago) in Coma Berenices

324.

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 (11,813 days ago) in Ursa Major

325.

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 (11,890 days ago) in Ophiuchus

326.

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 (11,918 days ago) in Libra

327.

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 (11,952 days ago) in Cetus

328.

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 (11,971 days ago) in Coma Berenices

329.

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 (11,993 days ago) in Ursa Major

330.

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 (12,105 days ago) in Serpens Caput

331.

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 (12,129 days ago) in Virgo

332.

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 (12,138 days ago) in Cetus

333.

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 (12,158 days ago) in Coma Berenices

334.

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 (12,180 days ago) in Ursa Major

335.

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 (12,286 days ago) in Serpens Caput

336.

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 (12,317 days ago) in Cetus

337.

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 (12,337 days ago) in Coma Berenices

338.

1 Ceres at perihelion 1 Ceres passes its orbit's closest point to the Sun. Fri, 14 Sep 1990 at 15:01 EDT (12,343 days ago) in Leo

339.

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 (12,360 days ago) in Ursa Major

340.

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 (12,370 days ago) in Leo