Thursday, September 25, 2014

Tonight's Sky for September 25: Young Moon and Mercury


How thin of a Moon have you seen? How about one that's less than 2 days old and only 3% illuminated? Well, if you have never seen a Moon this thin, tonight's your chance to do so as such a Moon will be making an appearance in this evening's sky just after sunset.

To see the Moon, you'll need a good Western horizon. How good? One with less than 5 degrees of obstruction. To simulate this, hold your middle three fingers vertically at arm's length to simulate 5 degrees. Hint: if you can't think of a good location off-hand, scout out one during the day. Location found, head there at sunset and start looking, preferably with optical aid. The good news, if you have binoculars, you should be good to go, just remember to be patient as the Moon will often appear to suddenly pop into view out of thin air. On the other hand, if you're still looking 30 minutes after sunset, you missed the Moon.

AS an added bonus, Mercury will be level with and a few degrees left of the Moon.

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