321.

Mars at perigee Mars reaches its closest point to the Earth – marking the best time to observe it in 1970. Tue, 18 Dec 2007 at 18:40 EDT (6,035 days ago) in Gemini

322.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Sat, 24 Nov 2007 at 06:25 EDT (6,059 days ago) in Aquarius

323.

Mars enters retrograde motion Mars reverses its direction of motion across the sky. Thu, 15 Nov 2007 at 03:22 EDT (6,068 days ago) in Gemini

324.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Wed, 31 Oct 2007 at 17:07 EDT (6,083 days ago) in Capricornus

325.

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. Sun, 09 Sep 2007 at 14:37 EDT (6,135 days ago) in Aquarius

326.

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. Tue, 21 Aug 2007 at 19:18 EDT (6,154 days ago) in Leo

327.

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, 13 Aug 2007 at 14:17 EDT (6,162 days ago) in Capricornus

328.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Mon, 06 Aug 2007 at 22:16 EDT (6,169 days ago) in Ophiuchus

329.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Sat, 23 Jun 2007 at 11:07 EDT (6,213 days ago) in Aquarius

330.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Thu, 07 Jun 2007 at 08:16 EDT (6,229 days ago) in Ophiuchus

331.

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. Tue, 05 Jun 2007 at 19:05 EDT (6,231 days ago) in Ophiuchus

332.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Mon, 04 Jun 2007 at 09:26 EDT (6,232 days ago) in Pisces

333.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Thu, 24 May 2007 at 22:01 EDT (6,243 days ago) in Capricornus

334.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Thu, 19 Apr 2007 at 17:46 EDT (6,278 days ago) in Leo

335.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Thu, 05 Apr 2007 at 21:23 EDT (6,292 days ago) in Ophiuchus

336.

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, 05 Mar 2007 at 10:30 EDT (6,323 days ago) in Aquarius

337.

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. Sat, 10 Feb 2007 at 13:34 EDT (6,346 days ago) in Leo

338.

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. Thu, 08 Feb 2007 at 10:43 EDT (6,348 days ago) in Capricornus

339.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Tue, 05 Dec 2006 at 22:24 EDT (6,413 days ago) in Leo

340.

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. Tue, 21 Nov 2006 at 18:04 EDT (6,427 days ago) in Libra