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ASTRO: NGC 1193
Back when I was taking Comet Holmes I took NGC 1193 when the comet
passed by it. I managed to store that in with the comet files and forgot about them. Going through the hard drive these cloudy nights I found the files. This is a very old (most say 4.5 billion years to 5 billion years) cluster. Rare to see one this old as they usually are torn apart by tidal forces not long after birth. I couldn't find any distance estimate for this guy. Taken binned 3x3 so at 1.5" of arc per pixel. Not sure why I did that. 14" LX200R @ f/10, L=6x5', RGB=2x5', 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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ASTRO: NGC 1193
Dave Jessie wrote: Rick Johnson wrote: snip I couldn't find any distance estimate for this guy. snip Hi Rick, Beautiful image, as are ALL of your images! I couldn't help myself...using Google, I found this site. The entry for NGC 1193 is about 3/5 of the way down the page. http://www.texasstarparty.org/espobserve.pdf Clear Dark Steady Skies, Dave Jessie Thanks. I should have said "reliable distance estimate". There's no source for this one given. It is seen in several viewing guides but no one mentions the source. The papers on this guy are few and those I've been able to to read in the physics library give no estimate of the distance citing too many uncertainties. I wish these fellows would give a source. The problem is this is a small cluster of apparent low mass and density, it should have quickly been torn apart but hasn't. It's a real puzzle. Maybe its mass is far greater than its luminosity indicates. That could mean a much greater distance than normally thought. The answer could lie in the distribution of dark matter about our galaxy. This one is a puzzle still waiting for an answer it appears. Rick 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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