Daily Archives: February 10, 2015

The Sculptor Galaxy, the Silver Coin, NGC 253


The Sculptor Galaxy, also known as the Silver Coin or Silver Dollar Galaxy, NGC 253, 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…”

Imaging telescopes or lenses: Sky-Watcher 200/1200 reflector
Imaging cameras: Canon EOS 400D / Digital Rebel XTi
Mounts: EQ6
Guiding telescopes or lenses: Tasco 60mm f/11.7 refractor
Guiding cameras: Philips Toucam
Software: DeepSkyStacker,  photoshop
Filters: HUTECH IDAS LPS-P2-48
Resolution: 1921×1469
Dates: Dec. 2, 2011
Frames: 28×300″ bin 1×1
Integration: 2.3 hours
Avg. Moon age: 7.00 days
Avg. Moon phase: 45.90%
RA center: 11.889 degrees
DEC center: -25.312 degrees
Pixel scale: 1.369 arcsec/pixel
Orientation: 7.024 degrees
Field radius: 0.460 degrees
Locations: Adelaide, None
Author:  spin_city