Astronomy Events for September 2010

Sept 1: The Moon is nearly 2 degrees SW of Pleiades after midnight

Sept 1: Venus is just 1 degree SW of Spica in the west after sunset

Sept 2: The Moon is within 8 degrees North of Aldebaran

Sept 3: Mercury Inferior Conjunction

Sept 8: New Moon

Sept 11: A Waxing Crescent Moon (only 14% illuminated) is just 1 degree away from bright Venus at 8:00pm in the western sky

Sept 14: The Moon stands within 4.5 degrees from Antares

Sept 15: First Quarter Moon

Sept 19: Mercury Greatest Western Elongation

Sept 21: Both Jupiter (Angular dia. 50 arc sec) and Uranus (Angular dia. 3.7 arc sec) are at opposition. Both the planets will be just 49’35” apart in the constellation Pisces.

Sept 23: Full Moon

Sept 28: The Moon and Pleiades are 5.5 degrees apart


Saturn: Very low in the western evening sky and will be lost in the glare of sun after mid September.

Mars: In the western evening sky in the constellation Virgo. The planet shines at mag. 1.5. The planet will be nearly 2 degrees from Spica on 5th.

Venus: The brightest light in the western evening sky for the whole month. On 1st September the planet will be just 1 degree from Spica. On 11th the planet will be again 1 degree from beautiful Crescent Moon making a lovely scene fits in almost any wide-field instrument.

Neptune: Shines at mag. 7.8 throughout the month in the constellation Capricornus.

Jupiter & Uranus: Both planets will be at opposition on September 21st and will be just 49’35” apart at that time. It will be great opportunity to see both planets together in one field of view when both are at opposition.

Mercury: The planet will emerge from the eastern morning sky around 10th September. Mercury will be at greatest Western Elongation on 19th. At that time the planet will be 18 degrees from sun.

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