Astronomy Calendar Feb - July 2012

1 Feb 2012 – 31 Jul 2012
Thuwal, Saudi Arabia(22.3N,39.1E)

February 20 - March 12 - Best Chance to see Mercury. The planet Mercury will be far enough from the Sun's glare to be visible shortly after sunset.

March 3 - Mars at Opposition. The red planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. This is the best time to view and photograph Mars. (mv=-1.2)

March 5 - Mercury will reach greatest elongation from the Sun, reaching a relatively bright magnitude of about -1. This will be your best chance to see the planet this year. (mv=-0.3,7pm W,10°)

March 14 - Conjunction of Venus and Jupiter. The two brightest planets in the sky will be at around 3 degrees of each other in the evening sky. (7pm W, Venus mv=-4.3, Jupiter mv=-2.1)

March 25 - The crescent Moon will be near Venus and Jupiter, creating a dazzling evening spectacle.

April 15 - Saturn at Opposition. The ringed planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. This is the best time to view and photograph Saturn and its moons.(mv=0.7)

April 21, 22 - Lyrids Meteor Shower. The Lyrids are an average shower, usually producing about 20 meteors per hour at their peak. These meteors can produce bright dust trails that last for several seconds. The shower usually peaks on April 21 & 22, although some meteors can be visible from April 16 - 25. With no moon to get in the way this year, this really should be a good show. Look for meteors radiating from the constellation of Lyra after midnight. (April 22, Start: 12am ENE 35°,Best: 4am N 78°)

May 5, 6 - Eta Aquarids Meteor Shower. The Eta Aquarids are a light shower, usually producing about 10 meteors per hour at their peak. The shower's peak usually occurs on May 5 & 6, however viewing should be good on any morning from May 4 - 7. The full moon will probably ruin the show this year, washing out all but the brightest meteors with its glare. The radiant point for this shower will be in the constellation Aquarius. Best viewing is usually to the east after midnight, far from city lights. (May 6, Start: 2:30am E 7°, Best: 5am ESE 42°)

May 20 - Annular Solar Eclipse. The path of annularity will begin in southern China and move east through Pacific Ocean, and into the western United States. Unfortunately the event cannot be observed in this area.

June 4 - Partial Lunar Eclipse. The eclipse will be visible throughout most of Asia, Australia, the Pacific Ocean, and the Americas. Unfortunately again the event cannot be observed in this area.

June 6 - Transit of Venus Across the Sun. This extremely rare event will be entirely visible throughout most of eastern Asia, eastern Australia, and Alaska. A partial transit can be seen in progress at sunrise throughout Europe, western Asia, and eastern Africa. In this area, it can be visible at sunrise at 5:38am at East until 7:57am. The next transit will not take place until the year 2117.

July 28, 29 - Southern Delta Aquarids Meteor Shower. The Delta Aquarids can produce about 20 meteors per hour at their peak. The shower usually peaks on July 28 & 29, but some meteors can also be seen from July 18 - August 18. The radiant point for this shower will be in the constellation Aquarius. The near first quarter moon will set shortly after midnight, leaving dark skies for what should be a good show. Best viewing is usually to the east after midnight. (July 29, Start: 12:40am SSE 30°, Best: 2:40am S 38°)

Ref: http://www.seasky.org/astronomy/astronomy-calendar-current.html

类别:天文星象
最近更新于2012-02-07, 周二 00:57
作者 Felix Lau
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