321.

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, 10 Feb 2008 at 20:54 EDT (5,936 days ago) in Capricornus

322.

Mars ends retrograde motion Mars returns to its usual eastward motion after opposition. Wed, 30 Jan 2008 at 17:34 EDT (5,947 days ago) in Taurus

323.

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. Mon, 24 Dec 2007 at 14:40 EDT (5,984 days ago) in Gemini

324.

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. Sun, 23 Dec 2007 at 00:45 EDT (5,985 days ago) in Sagittarius

325.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Fri, 21 Dec 2007 at 02:01 EDT (5,987 days ago) in Sagittarius

326.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Wed, 19 Dec 2007 at 09:09 EDT (5,989 days ago) in Leo

327.

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 (5,990 days ago) in Gemini

328.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Sat, 24 Nov 2007 at 06:25 EDT (6,014 days ago) in Aquarius

329.

Mars enters retrograde motion Mars reverses its direction of motion across the sky. Thu, 15 Nov 2007 at 03:22 EDT (6,023 days ago) in Gemini

330.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Wed, 31 Oct 2007 at 17:07 EDT (6,038 days ago) in Capricornus

331.

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 (6,090 days ago) in Aquarius

332.

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 (6,109 days ago) in Leo

333.

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 (6,117 days ago) in Capricornus

334.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Mon, 06 Aug 2007 at 22:16 EDT (6,124 days ago) in Ophiuchus

335.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Sat, 23 Jun 2007 at 11:07 EDT (6,168 days ago) in Aquarius

336.

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 (6,184 days ago) in Ophiuchus

337.

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 (6,186 days ago) in Ophiuchus

338.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Mon, 04 Jun 2007 at 09:26 EDT (6,187 days ago) in Pisces

339.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Thu, 24 May 2007 at 22:01 EDT (6,198 days ago) in Capricornus

340.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Thu, 19 Apr 2007 at 17:46 EDT (6,233 days ago) in Leo