481.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Fri, 29 Sep 2000 at 09:06 EDT (8,670 days ago) in Taurus

482.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Tue, 12 Sep 2000 at 07:56 EDT (8,687 days ago) in Taurus

483.

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, 11 Aug 2000 at 01:11 EDT (8,719 days ago) in Capricornus

484.

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, 27 Jul 2000 at 18:40 EDT (8,734 days ago) in Capricornus

485.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Fri, 21 Jul 2000 at 01:13 EDT (8,740 days ago) in Gemini

486.

Mars at solar conjunction Mars 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, 01 Jul 2000 at 11:22 EDT (8,760 days ago) in Gemini

487.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Thu, 25 May 2000 at 04:19 EDT (8,797 days ago) in Capricornus

488.

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. Wed, 10 May 2000 at 15:35 EDT (8,812 days ago) in Aries

489.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Wed, 10 May 2000 at 03:40 EDT (8,812 days ago) in Aries

490.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Mon, 08 May 2000 at 07:05 EDT (8,814 days ago) in Capricornus

491.

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, 07 May 2000 at 23:57 EDT (8,815 days ago) in Aries

492.

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. Sun, 06 Feb 2000 at 02:05 EDT (8,906 days ago) in Capricornus

493.

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. Mon, 24 Jan 2000 at 12:59 EDT (8,919 days ago) in Capricornus

494.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Tue, 11 Jan 2000 at 23:45 EDT (8,931 days ago) in Aries

495.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Mon, 20 Dec 1999 at 09:58 EDT (8,954 days ago) in Pisces

496.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Thu, 25 Nov 1999 at 09:15 EDT (8,979 days ago) in Capricornus

497.

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, 06 Nov 1999 at 08:44 EDT (8,998 days ago) in Aries

498.

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. Sat, 23 Oct 1999 at 14:56 EDT (9,012 days ago) in Pisces

499.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Sat, 23 Oct 1999 at 01:11 EDT (9,012 days ago) in Capricornus

500.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Fri, 22 Oct 1999 at 10:06 EDT (9,013 days ago) in Pisces