This shot was taken through a 135mm lens at f/4. The exposure was ~30 minutes on Kodak E200 slide film. This picture contains many objects from Charles Messier's Catalogue. M22 - This object is a Globular Cluster at a distance of 10,400 light years. It's a dense collection of around 70,000 stars roughly 200 light years in diamater. M28 - Another Globular Cluster, but much smaller than M22. This one is between 18,000 and 20,000 light years distant, containing between 20,000 and 30,000 stars and it's about 60 light years in diamater. M25 - This is an Open Cluster that lies about 2000 light years distant. The estimates for the number of stars in this cluster range quite dramatically from as few as 90 stars to as many as 600 (i don't count 'em - i just shoot 'em!). It's just less than 20 light years in diamater. M23 - Another Open Cluster containing 100-200 stars at a distance of 2150 light years and is between 15-20 light years in diamater. M21 - This is a very young (astronomically speaking) Open Cluster with fewer than 60 stars at a distance of roughly 3000 light years. ---- Now to the colorful stuff --- M20 - This is a combination of Emission and Reflection nebulas. The estimates for the distance of this object vary rediculously from 2200 all the way to 9000 light years. Sky Catalogue 2000 puts its distance at 5200 light years and that's what I'm sticking with. Using this figure for its distance, it is about 40 light years in diamater. M8 - The largest object (visually) in this shot is an Emission Nebula. From dark skies, this is visible to the naked eye. It's distance is put at 5200 light years and covers an area of 140 x 60 light years. Thanks for all the wonderful comments on my previous post. I really enjoy doing this stuff and love to share it. And to all the photographers here - get out there and play around a bit if you can. Astrophotography can be very challenging, but also, very rewarding.