401.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Thu, 10 Jun 2004 at 12:20 EDT (7,320 days ago) in Aquarius

402.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Mon, 17 May 2004 at 08:27 EDT (7,344 days ago) in Capricornus

403.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Tue, 04 May 2004 at 23:11 EDT (7,357 days ago) in Leo

404.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Sun, 07 Mar 2004 at 11:19 EDT (7,415 days ago) in Gemini

405.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Thu, 04 Mar 2004 at 04:17 EDT (7,418 days ago) in Leo

406.

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. Wed, 03 Mar 2004 at 23:57 EDT (7,418 days ago) in Leo

407.

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. Sat, 21 Feb 2004 at 20:57 EDT (7,430 days ago) in Aquarius

408.

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. Mon, 02 Feb 2004 at 04:20 EDT (7,449 days ago) in Capricornus

409.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Sat, 03 Jan 2004 at 18:46 EDT (7,479 days ago) in Leo

410.

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. Wed, 31 Dec 2003 at 15:49 EDT (7,482 days ago) in Gemini

411.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Sat, 08 Nov 2003 at 07:28 EDT (7,535 days ago) in Aquarius

412.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sat, 25 Oct 2003 at 19:49 EDT (7,549 days ago) in Gemini

413.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Wed, 22 Oct 2003 at 20:22 EDT (7,552 days ago) in Capricornus

414.

Mars ends retrograde motion Mars returns to its usual eastward motion after opposition. Sat, 27 Sep 2003 at 03:48 EDT (7,577 days ago) in Aquarius

415.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Sat, 30 Aug 2003 at 06:10 EDT (7,605 days ago) in Aquarius

416.

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. Thu, 28 Aug 2003 at 13:52 EDT (7,607 days ago) in Aquarius

417.

Mars at perigee Mars reaches its closest point to the Earth – marking the best time to observe it in 1970. Wed, 27 Aug 2003 at 05:46 EDT (7,608 days ago) in Aquarius

418.

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, 24 Aug 2003 at 05:54 EDT (7,611 days ago) in Aquarius

419.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Fri, 22 Aug 2003 at 13:35 EDT (7,613 days ago) in Leo

420.

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. Fri, 22 Aug 2003 at 05:56 EDT (7,613 days ago) in Leo