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ASTRO: Leo III (Leo A)
After Leo I and Leo II comes Leo III. Why Leo II is also known as Leo B
but Leo III is Leo A I can't fathom. Leo III has a population of very young stars which is odd for a dwarf with so little dust and gas. It seems to have had several periods of star birth over its lifetime. Leo I is a over 800 thousand light years away and Leo II 750 thousand light years. They are satellites of our galaxy. Leo III however is 2.5 million light years away so a member of our local group but not a satellite galaxy. Still, thanks to those young massive stars I was able to resolve quite a few of its stars. I tried something new when imaging this guy. I used 3x3 binning on the color frames. Otherwise, through the filters I'd have needed a lot of exposure time to capture the color of the faint stars. This allowed me to use half the exposure time and still resolve the stars through the filters. It turned out well so I may do this more often and save some imaging time. 14" LX200R@f/10, L=4x10' binned 2x2, RGB=2x10' binned 3x3, STL-11000XM, Paramount ME Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
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