Saturday, November 28, 2020

NGC 253 - Sculptor Galaxy


 The Sculptor Galaxy (also known as the Silver Coin, Silver Dollar Galaxy, NGC 253, or Caldwell 65) is an intermediate spiral galaxy in the constellation Sculptor. The Sculptor Galaxy is a starburst galaxy, which means that it is currently undergoing a period of intense star formation.

The galaxy was discovered by Caroline Herschel in 1783 during one of her systematic comet searches. About half a century later, John Herschel observed it using his 18-inch metallic mirror reflector at the Cape of Good Hope. He wrote: "very bright and large (24′ in length); a superb object.... Its light is somewhat streaky, but I see no stars in it except 4 large and one very small one, and these seem not to belong to it, there being many near..."

The above images is made up of 19 subframes 5 minutes each (95 minutes) stacked and processed in AstroArt 7 and tweaked using Photoshop 5.  The subframes were captured using a AT6RC scope mounted on an AP900 mount with a Starlight Express SXVR-M25C.  The AP900 was autoguided using a Meade DSI Pro camera and an 80mm f7 refractor scope.  The image data was captured while at Rusty's RV Ranch near Rodeo, AZ in October of 2020.


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