501.

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, 24 Jan 1962 at 01:10 EDT (22,821 days ago) in Lynx

502.

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, 09 Nov 1961 at 04:00 EDT (22,897 days ago) in Cetus

503.

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. Mon, 02 Oct 1961 at 15:40 EDT (22,935 days ago) in Cetus

504.

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, 24 Aug 1961 at 00:44 EDT (22,974 days ago) in Leo

505.

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. Wed, 26 Jul 1961 at 07:10 EDT (23,003 days ago) in Lynx

506.

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, 29 Mar 1961 at 22:51 EDT (23,122 days ago) in Cetus

507.

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. Tue, 21 Mar 1961 at 13:42 EDT (23,130 days ago) in Cetus

508.

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. Sun, 19 Feb 1961 at 00:15 EDT (23,160 days ago) in Leo

509.

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, 22 Jan 1961 at 16:50 EDT (23,188 days ago) in Lynx

510.

1 Ceres at aphelion 1 Ceres passes the furthest point along its orbit from the Sun. Wed, 12 Oct 1960 at 03:27 EDT (23,290 days ago) in Microscopium

511.

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, 02 Oct 1960 at 03:23 EDT (23,300 days ago) in Cetus

512.

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, 22 Aug 1960 at 20:37 EDT (23,341 days ago) in Leo

513.

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, 12 Aug 1960 at 01:18 EDT (23,351 days ago) in Piscis Austrinus

514.

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. Sun, 24 Jul 1960 at 21:19 EDT (23,370 days ago) in Lynx

515.

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. Tue, 29 Mar 1960 at 10:29 EDT (23,487 days ago) in Cetus

516.

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, 18 Feb 1960 at 21:01 EDT (23,527 days ago) in Leo

517.

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. Fri, 22 Jan 1960 at 08:38 EDT (23,554 days ago) in Lynx

518.

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. Mon, 28 Dec 1959 at 22:30 EDT (23,579 days ago) in Sagittarius

519.

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. Fri, 02 Oct 1959 at 15:02 EDT (23,666 days ago) in Cetus

520.

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, 22 Aug 1959 at 16:21 EDT (23,707 days ago) in Leo