1861.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Fri, 11 Feb 2107 at 01:04 EDT (30,225 days away) in Aquarius

1862.

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, 22 Mar 2107 at 08:29 EDT (30,264 days away) in Virgo

1863.

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, 26 Mar 2107 at 13:03 EDT (30,268 days away) in Pisces

1864.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Wed, 27 Apr 2107 at 13:12 EDT (30,300 days away) in Sagittarius

1865.

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. Wed, 11 May 2107 at 04:51 EDT (30,314 days away) in Aries

1866.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Tue, 17 May 2107 at 09:14 EDT (30,320 days away) in Aries

1867.

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, 19 May 2107 at 05:55 EDT (30,322 days away) in Taurus

1868.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Sat, 21 May 2107 at 12:07 EDT (30,324 days away) in Taurus

1869.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Sat, 11 Jun 2107 at 01:36 EDT (30,345 days away) in Virgo

1870.

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, 07 Jul 2107 at 04:29 EDT (30,371 days away) in Sagittarius

1871.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Tue, 30 Aug 2107 at 11:11 EDT (30,425 days away) in Aries

1872.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Thu, 15 Sep 2107 at 22:41 EDT (30,441 days away) in Sagittarius

1873.

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. Sun, 25 Sep 2107 at 20:47 EDT (30,451 days away) in Virgo

1874.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Sun, 09 Oct 2107 at 23:46 EDT (30,465 days away) in Taurus

1875.

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, 15 Nov 2107 at 01:24 EDT (30,502 days away) in Aries

1876.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Wed, 07 Dec 2107 at 01:36 EDT (30,524 days away) in Taurus

1877.

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. Thu, 08 Dec 2107 at 11:09 EDT (30,525 days away) in Taurus

1878.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Fri, 06 Jan 2108 at 09:14 EDT (30,554 days away) in Virgo

1879.

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, 11 Jan 2108 at 08:05 EDT (30,559 days away) in Sagittarius

1880.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Fri, 20 Jan 2108 at 11:18 EDT (30,568 days away) in Virgo