1.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Mon, 18 Jun 2018 at 19:45 EDT (2,139 days ago) in Aquarius

2.

Mars enters retrograde motion Mars reverses its direction of motion across the sky. Tue, 26 Jun 2018 at 17:01 EDT (2,131 days ago) in Capricornus

3.

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. Wed, 27 Jun 2018 at 09:20 EDT (2,130 days ago) in Sagittarius

4.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Tue, 10 Jul 2018 at 13:19 EDT (2,117 days ago) in Libra

5.

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. Fri, 27 Jul 2018 at 01:06 EDT (2,100 days ago) in Capricornus

6.

Mars at perigee Mars reaches its closest point to the Earth – marking the best time to observe it in 1970. Tue, 31 Jul 2018 at 03:44 EDT (2,096 days ago) in Capricornus

7.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Tue, 07 Aug 2018 at 11:57 EDT (2,089 days ago) in Aries

8.

Mars ends retrograde motion Mars returns to its usual eastward motion after opposition. Mon, 27 Aug 2018 at 10:01 EDT (2,069 days ago) in Sagittarius

9.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Thu, 06 Sep 2018 at 07:19 EDT (2,059 days ago) in Sagittarius

10.

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. Fri, 07 Sep 2018 at 14:18 EDT (2,058 days ago) in Aquarius

11.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Sun, 16 Sep 2018 at 08:53 EDT (2,049 days ago) in Capricornus

12.

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, 23 Oct 2018 at 20:38 EDT (2,012 days ago) in Aries

13.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Fri, 23 Nov 2018 at 22:38 EDT (1,981 days ago) in Scorpius

14.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Sat, 24 Nov 2018 at 21:48 EDT (1,980 days ago) in Aquarius

15.

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. Mon, 26 Nov 2018 at 01:22 EDT (1,978 days ago) in Scorpius

16.

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, 02 Jan 2019 at 00:40 EDT (1,941 days ago) in Sagittarius

17.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Sun, 06 Jan 2019 at 16:06 EDT (1,937 days ago) in Pisces

18.

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. Wed, 06 Mar 2019 at 19:51 EDT (1,878 days ago) in Aquarius

19.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Wed, 10 Apr 2019 at 12:52 EDT (1,843 days ago) in Ophiuchus

20.

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, 22 Apr 2019 at 18:57 EDT (1,831 days ago) in Aries