301.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Mon, 15 Jun 2009 at 03:57 EDT (5,451 days ago) in Capricornus

302.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Thu, 28 May 2009 at 23:55 EDT (5,469 days ago) in Capricornus

303.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Sat, 16 May 2009 at 21:59 EDT (5,481 days ago) in Leo

304.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Tue, 21 Apr 2009 at 05:49 EDT (5,506 days ago) in Pisces

305.

Uranus at aphelion Uranus passes the furthest point along its orbit from the Sun. Thu, 02 Apr 2009 at 13:56 EDT (5,525 days ago) in Pisces

306.

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, 12 Mar 2009 at 21:18 EDT (5,546 days ago) in Aquarius

307.

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. Sun, 08 Mar 2009 at 15:45 EDT (5,550 days ago) in Leo

308.

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, 12 Feb 2009 at 07:32 EDT (5,574 days ago) in Capricornus

309.

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. Sat, 24 Jan 2009 at 00:33 EDT (5,593 days ago) in Capricornus

310.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Thu, 22 Jan 2009 at 21:42 EDT (5,595 days ago) in Capricornus

311.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Wed, 31 Dec 2008 at 13:08 EDT (5,617 days ago) in Leo

312.

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. Fri, 05 Dec 2008 at 16:34 EDT (5,643 days ago) in Ophiuchus

313.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Thu, 27 Nov 2008 at 11:54 EDT (5,651 days ago) in Aquarius

314.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Sun, 02 Nov 2008 at 02:40 EDT (5,676 days ago) in Capricornus

315.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Thu, 30 Oct 2008 at 23:42 EDT (5,679 days ago) in Libra

316.

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. Fri, 12 Sep 2008 at 22:13 EDT (5,727 days ago) in Aquarius

317.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Mon, 08 Sep 2008 at 00:23 EDT (5,731 days ago) in Sagittarius

318.

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, 03 Sep 2008 at 21:49 EDT (5,736 days ago) in Leo

319.

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. Fri, 15 Aug 2008 at 03:34 EDT (5,755 days ago) in Capricornus

320.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Thu, 10 Jul 2008 at 06:59 EDT (5,791 days ago) in Sagittarius