1.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Wed, 22 Nov 2017 at 07:12 PDT (2,347 days ago) in Aquarius

2.

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. Thu, 26 Oct 2017 at 10:58 PDT (2,374 days ago) in Virgo

3.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Tue, 24 Oct 2017 at 15:19 PDT (2,376 days ago) in Virgo

4.

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. Thu, 19 Oct 2017 at 10:26 PDT (2,381 days ago) in Pisces

5.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Sat, 07 Oct 2017 at 16:43 PDT (2,393 days ago) in Leo

6.

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. Mon, 04 Sep 2017 at 22:19 PDT (2,426 days ago) in Aquarius

7.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Fri, 25 Aug 2017 at 04:39 PDT (2,436 days ago) in Ophiuchus

8.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Sat, 05 Aug 2017 at 03:39 PDT (2,456 days ago) in Cancer

9.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Wed, 02 Aug 2017 at 22:08 PDT (2,459 days ago) in Pisces

10.

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. Wed, 26 Jul 2017 at 17:30 PDT (2,466 days ago) in Cancer

11.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Fri, 16 Jun 2017 at 04:41 PDT (2,506 days ago) in Aquarius

12.

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, 15 Jun 2017 at 03:09 PDT (2,507 days ago) in Ophiuchus

13.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Fri, 09 Jun 2017 at 07:12 PDT (2,513 days ago) in Virgo

14.

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. Thu, 13 Apr 2017 at 22:21 PDT (2,570 days ago) in Pisces

15.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Sat, 08 Apr 2017 at 14:23 PDT (2,575 days ago) in Virgo

16.

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. Fri, 07 Apr 2017 at 14:31 PDT (2,576 days ago) in Virgo

17.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Wed, 05 Apr 2017 at 22:18 PDT (2,578 days ago) in Sagittarius

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, 01 Mar 2017 at 18:35 PDT (2,613 days ago) in Aquarius

19.

Jupiter at aphelion Jupiter passes the furthest point along its orbit from the Sun. Thu, 16 Feb 2017 at 02:07 PDT (2,626 days ago) in Virgo

20.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Sun, 05 Feb 2017 at 22:42 PDT (2,637 days ago) in Virgo