The Sun in September 2012

On 22 September is around 16:49 EST, the astronomical start of autumn. The sunset is the end of September an hour earlier than the first of the month - to 19 ¼ clock. Also in the morning, it is much longer dark: The sunrise is delayed until after 7 clocks.

The sundial reflects the true solar time, which can be determined from the position of the sun in our sky by direct measurements.

The moon in September 2012

On 22 September, the moon is half-lit and is particularly low in the sky: it is the southernmost of the decreasing half-moon of the year. New Moon is on the 16th September. The observation of the first crescent of the new moon and last time in the bright twilight is sometimes a challenge, especially in this month: Both events are theoretically to see only part of the German-speaking world and then only with the aid of optical means.

Planets in September 2012

While Saturn’s visibility in the evening sky ended, escapes Mars just barely the bright sunlight and remain inconspicuous in the dusk. Jupiter Sunrise's premature to late evening hours. Until the rising of Venus at 3 clock the gas giant Jupiter is the brightest star-like object in the sky. Venus reached in September, the highest level in the dawn of the morning current visibility and dominates the morning sky as a very bright “morning star ".

Comet in September 2012

From Central Europe this month no eye-catching comet can be seen. Telescopically but nearly every night some objects outside a brightness of 10 to find size. For 2013 we can hope for the comet C/2011 L4 (Pan-STARRS). He has to be the makings of a comet of the decade. He is expected to see the January to May 2013 by the naked eye. In September is its brightness but only 12th Size - unfortunately he is also only observed again in 2013 from Central Europe.