NGC 7789, Caroline's Rose, an ancient open cluster in Cassiopeia.
Coordinates: RA: 23h 57m 24s DEC: +56° 42.5′
Distance: 7,600 light years.
Image:
10x3 min: 30 minutes
ISO 800
10 darks, 40 flats, 30 bias frames
Image Scale = 1.17 arcsec/pix
Field Of View = 50.7 x 76.1 arcmin
Stacked with Deepsky Stacker
Processed with Adobe Photoshop CS3
Equipment:
Camera: Hutech Modified Canon T1i
Scope: Modified 200m f5 Konus Newtonian with Baader MPCC coma corrector and Baader UV/IR cut filter
Mount: Losmandy G-11 Gemini V.1.04
Tripod: Losmandy Heavy Duty
Autoguide Scope: 80mm f5 Orion Shorty
Autoguide Camera: Orion Starshooter using PhD Guiding
Image acquired on 08/15/2012 at the LAS Baker Observatory, Curby, Indiana.
Conditions:
Transparancy: Good
Seeing: Above average - 4/5 (especially for the region in which I live)
According to Wikipedia, the "cluster was discovered by
Caroline Herschel in 1783. Her brother
William Herschel included it in his catalog as H VI.30. This cluster is also known as "The White Rose" Cluster or "Caroline's Rose" Cluster because when seen visually, the loops of stars and dark lanes look like the swirling pattern of rose petals as seen from above."
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
Picasa made a pic in my album on its own !
Lacamas Lake, Camas, WA
