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Pastimes : Digital Photography -- Ignore unavailable to you. Want to Upgrade?

To: Murrey Walker who wrote (18212)	10/19/2007 5:11:15 PM
From: Elsewhere	Respond to of 21652

Thanks! An improvement beyond that will only be possible with a telescope. I might get one within the next years, currently I am considering a 200/1000 Newton on (H)EQ-5 or EQ-6. Recently I was surprised that a DSLR already catches stars up to 10 mag with a 4 s exposure. Here's Orion's sword with 50 arbitrary stars: No. 16 is TYC 4778-1372-1 with 9.9 mag (clearly visible at 100%). Obviously theta 1 and theta 2 Orionis (no. 1 and 2 in the image) with just a hint of the Orion nebula is crying for tracking with a parallactic astro mount on a solid tripod... Anybody who wants a nice astro poster on the wall can look at the take of the Hubble Space Telescope of that night sky area: hubblesite.org The link "Highest-quality download options" leads to a page with an image which is a composite of 520 individual Hubble pictures of 16 MP each. The mosaic has a resolution of 18000x18000.