View Full Version : Ngc 7044

2012-Jan-04, 03:20 AM
NGC 7044 is an open cluster in Cygnus not far from the famous North American Nebula. It is in the Herschel 400 object list. I couldn't find any authoritative distance for the cluster. WEBDA puts its distance as a bit over 10,000 light-years. One paper puts the age of the cluster as 1.04 to 1.2 billion years. It's lack of massive blue stars would support this age determination. Open clusters tend to be ripped apart by tidal forces before they get this old. This one apparently has sufficient mass to avoid being ripped to pieces.

Located in the Milky Way it is seen against a dense star field. Being near the North American and Pelican Nebula complex there is some faint H alpha across the image. It was pretty featureless and reduced contrast to the cluster. I processed the image to ignore this background as it added nothing but a noisy faint red glow. With a lot more time and filtered H alpha data it might work to show it. I decided it was better if suppressed in my limited exposure time image.

14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

Sorry but only a cropped image fit the band width limits.


2012-Jan-04, 06:56 PM
Beautiful Cluster, Very nice colors on its surrounding stars.