721.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Sat, 30 Mar 1991 at 07:58 EDT (12,164 days ago) in Cancer

722.

Jupiter at opposition Jupiter lies in the opposite direction to the Sun in the sky, making it slightly closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Mon, 28 Jan 1991 at 19:18 EDT (12,225 days ago) in Cancer

723.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Mon, 28 Jan 1991 at 03:00 EDT (12,225 days ago) in Cancer

724.

Saturn at solar conjunction Saturn 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, 18 Jan 1991 at 02:35 EDT (12,235 days ago) in Sagittarius

725.

Neptune at solar conjunction Neptune 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, 04 Jan 1991 at 22:13 EDT (12,249 days ago) in Sagittarius

726.

Mars ends retrograde motion Mars returns to its usual eastward motion after opposition. Tue, 01 Jan 1991 at 07:55 EDT (12,252 days ago) in Taurus

727.

Uranus at solar conjunction Uranus 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, 31 Dec 1990 at 10:42 EDT (12,253 days ago) in Sagittarius

728.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Thu, 29 Nov 1990 at 23:57 EDT (12,284 days ago) in Cancer

729.

Mars at opposition Mars lies in the opposite direction to the Sun in the sky, making it closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Tue, 27 Nov 1990 at 15:27 EDT (12,287 days ago) in Taurus

730.

Mars at perigee Mars reaches its closest point to the Earth – marking the best time to observe it in 1970. Mon, 19 Nov 1990 at 22:53 EDT (12,295 days ago) in Taurus

731.

Mars enters retrograde motion Mars reverses its direction of motion across the sky. Sat, 20 Oct 1990 at 15:29 EDT (12,325 days ago) in Taurus

732.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Sun, 23 Sep 1990 at 14:29 EDT (12,352 days ago) in Sagittarius

733.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Sun, 23 Sep 1990 at 01:02 EDT (12,352 days ago) in Sagittarius

734.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Fri, 14 Sep 1990 at 14:41 EDT (12,361 days ago) in Sagittarius

735.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Mon, 16 Jul 1990 at 15:36 EDT (12,421 days ago) in Gemini

736.

Jupiter at solar conjunction Jupiter 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, 15 Jul 1990 at 01:20 EDT (12,422 days ago) in Gemini

737.

Saturn at opposition Saturn lies in the opposite direction to the Sun in the sky, making it slightly closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Sat, 14 Jul 1990 at 13:35 EDT (12,423 days ago) in Sagittarius

738.

Neptune at opposition Neptune lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Thu, 05 Jul 1990 at 07:18 EDT (12,432 days ago) in Sagittarius

739.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Sat, 30 Jun 1990 at 06:23 EDT (12,437 days ago) in Pisces

740.

Uranus at opposition Uranus lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Fri, 29 Jun 1990 at 10:34 EDT (12,438 days ago) in Sagittarius