1.

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. Mon, 13 Jan 2020 at 10:06 EDT (1,587 days ago) in Sagittarius

2.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Fri, 10 Jan 2020 at 21:53 EDT (1,590 days ago) in Aries

3.

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. Fri, 27 Dec 2019 at 13:14 EDT (1,604 days ago) in Sagittarius

4.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Wed, 25 Dec 2019 at 16:56 EDT (1,606 days ago) in Sagittarius

5.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Wed, 27 Nov 2019 at 08:58 EDT (1,634 days ago) in Aquarius

6.

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. Mon, 28 Oct 2019 at 04:07 EDT (1,664 days ago) in Aries

7.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Wed, 18 Sep 2019 at 04:25 EDT (1,704 days ago) in Sagittarius

8.

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. Tue, 10 Sep 2019 at 03:15 EDT (1,712 days ago) in Aquarius

9.

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. Mon, 02 Sep 2019 at 06:17 EDT (1,720 days ago) in Leo

10.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Wed, 28 Aug 2019 at 15:20 EDT (1,725 days ago) in Leo

11.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Sun, 25 Aug 2019 at 23:48 EDT (1,728 days ago) in Leo

12.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Sun, 11 Aug 2019 at 21:53 EDT (1,742 days ago) in Aries

13.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Sun, 11 Aug 2019 at 09:47 EDT (1,742 days ago) in Ophiuchus

14.

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. Tue, 09 Jul 2019 at 12:59 EDT (1,775 days ago) in Sagittarius

15.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Fri, 21 Jun 2019 at 10:13 EDT (1,793 days ago) in Aquarius

16.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Tue, 11 Jun 2019 at 23:03 EDT (1,803 days ago) in Ophiuchus

17.

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, 10 Jun 2019 at 11:20 EDT (1,804 days ago) in Ophiuchus

18.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Mon, 29 Apr 2019 at 21:16 EDT (1,846 days ago) in Sagittarius

19.

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 (1,853 days ago) in Aries

20.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Wed, 10 Apr 2019 at 12:52 EDT (1,865 days ago) in Ophiuchus