621.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Sat, 25 Dec 2049 at 12:11 EDT (9,293 days away) in Leo

622.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Tue, 18 Jan 2050 at 04:15 EDT (9,317 days away) in Cancer

623.

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. Wed, 19 Jan 2050 at 00:49 EDT (9,318 days away) in Cancer

624.

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, 19 Jan 2050 at 11:08 EDT (9,318 days away) in Sagittarius

625.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Tue, 01 Feb 2050 at 21:05 EDT (9,331 days away) in Aries

626.

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. Tue, 08 Mar 2050 at 21:21 EDT (9,366 days away) in Leo

627.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Sun, 20 Mar 2050 at 04:56 EDT (9,378 days away) in Gemini

628.

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, 16 May 2050 at 07:19 EDT (9,435 days away) in Taurus

629.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Wed, 18 May 2050 at 10:34 EDT (9,437 days away) in Capricornus

630.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Tue, 24 May 2050 at 00:48 EDT (9,443 days away) in Leo

631.

Mars enters retrograde motion Mars reverses its direction of motion across the sky. Fri, 15 Jul 2050 at 01:59 EDT (9,495 days away) in Aquarius

632.

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. Thu, 28 Jul 2050 at 06:34 EDT (9,508 days away) in Capricornus

633.

Uranus at perihelion Uranus passes its orbit's closest point to the Sun. Thu, 04 Aug 2050 at 10:45 EDT (9,515 days away) in Leo

634.

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 Aug 2050 at 14:43 EDT (9,518 days away) in Cancer

635.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Mon, 08 Aug 2050 at 11:11 EDT (9,519 days away) in Cancer

636.

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. Sun, 14 Aug 2050 at 03:44 EDT (9,525 days away) in Capricornus

637.

Mars at perigee Mars reaches its closest point to the Earth – marking the best time to observe it in 1970. Mon, 15 Aug 2050 at 08:48 EDT (9,526 days away) in Capricornus

638.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Wed, 31 Aug 2050 at 13:41 EDT (9,542 days away) in Taurus

639.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Wed, 07 Sep 2050 at 02:37 EDT (9,549 days away) in Capricornus

640.

Mars ends retrograde motion Mars returns to its usual eastward motion after opposition. Tue, 13 Sep 2050 at 06:58 EDT (9,555 days away) in Capricornus