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Archive for February, 2013

This post concludes my longest period ever without posting! Been busy, & the winter has been cold and snowy. But the northern winter has its glories, and here are a couple:
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Above: Light, fluffy, delicate snow on tree branches, February 16, 2013 at 10:22 AM.
Below: Sundogs shining through the trees at 9:04 AM on the bitterly cold morning of February 19.
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It was slightly hazy this morning, but it was so much fun to get out to the telescope again and observe Saturn, I went with it anyway. Here’s a Saturn series, similar in format to my Venus phase updates, beginning with this morning and working back through a few of my best Saturn photos. Note how over time Saturn’s rings are “opening up” as viewed from Earth. Unless otherwise noted, these photos are with the 8″ reflector telescope, 17mm eyepiece, and 2x Barlow:

0221030645asaturn17mm2xb200 6:45 AM CST February 21, 2013 (12:45 UT)
Angular diameter 17.60 arc seconds
Distance from Earth 873,809,000 miles (1,406,259,000 km)
7:01 AM CST November 20, 2012 (13:01 UT)
Angular diameter 15.49 arc seconds
Distance from Earth 992,918,000 miles (1,598,000,000 km)
11:42 PM CDT June 7, 2012 (04:42 UT June 8, 2012)
Angular diameter 18.15 arc seconds
Distance from Earth 847,415,000 miles (1,363,782,000 km)
4:38 AM CDT April 12, 2012 (09:38 UT)
Angular diameter 18.97 arc seconds
Distance from Earth 810,707,000 miles (1,304,706,000 km)
6:13 AM CST January 8, 2012 (12:13 UT)
Angular diameter 16.82 arc seconds
Distance from Earth 913,348,000 miles (1,471,501,000 km)
25mm eyepiece with 2x Barlow, scaled to match the others
3:23 AM CDT April 14, 2011 (08:23 UT)
Angular diameter 18.97 arc seconds
Distance from Earth 810,570,000 miles (1,304,487,000 km)

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