Spiral Galaxy in Ursa Major

Uploaded 5/16/06

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 Now the combination of the 10D and SV80s shows once again the sharpness and detail that seems now more routine since I've put the Stellarvue instrument into service at the observatory in Payson. Contained in this 2x3 degree field is a collection of galaxies of many types.

The central object in the image, M101 is a sizeable 29 arcminutes in size and has an integrated magnitude of 8.3. It is classed as an SAB spiral, with only 1 degree of inclination to our line of sight. In the larger images, you will note the very strange looking galaxy to its lower left. Thats NGC5474, and is a multi galaxy system classed Sc and 11.8th magnitude.

My favorite is to the upper right (again look at the larger images) and you will find a spectacular edge on spiral, NGC5422. It is 13th magnitude and 4 arcminutes in size. I know its fairly large, but if you have a chance, please look at the tiny stars and dozens of galaxies in the large shot!

Instrument: Stellarvue SV80S Refractor w/.8x TR2008 Field Flattener, EFR = 80mm f/4.74 @ 379mm FL Platform: Astrophysics AP1200 Camera: Canon 10D @ ISO800 Exposure: 20m = 2x10m Filters: Standard IR Block Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 7/10, Transparency 8/10 Outside Temperature: 35F Processing Tools: Photoshop CS2, Raw Shooter Premium HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS FastCounter by bCentral