James Janusz 2000 thru 2021 All Rights Reserved |
Telescope: Stellarvue SVX102T-R Raptor 102mm Carbon Fiber Triplet & SFFR-74-102T Focal Reducer Flattener | Designation: NGC 457 (also designated Caldwell 13, and known as the Owl Cluster, E.T. Cluster, Dragonfly Cluster, or Kachina Doll Cluster) is an open star cluster in the constellation Cassiopeia. It was discovered by William Herschel in 1787, and lies over 7,900 light years away from the Sun. It has an estimated age of 21 million years. The cluster is sometimes referred by amateur astronomers as the Owl Cluster, the E.T. Cluster (due to its resemblance to the movie character) or the "Skiing Cluster". Two bright stars Phi Cassiopeiae (magnitude 5) and HD 7902 (magnitude 7) can be imagined as eyes. The next brightest star is the red supergiant variable star V466 Cassiopeiae. The cluster features a rich field of about 150 stars of magnitudes 9-13. (Wiki) |
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Mount: Ioptron GEM-45 | Constellation: Cassiopeia. |
Camera: ZWO ASI294 MC Pro OSC | Imaged With ZWO ASIAIR Plus |
Guiding:ZWO 120 Mini Guider and SW Evoguide Guidescope | Type: Open Cluster |
Exposure Data: 52 - 10 minute sub exposures with the L-Pro Filter. | Position: R.A. 01h 19m 33s , Dec +°58 17' 27" |
Processed using PixInsight and PhotoShop image processing | Date: November 2021 |
Data Acquisiton, Reduction and Processing by Jim Janusz | Imaging Location: Roadrunner Observatory, Backyard, Palm Desert CA |
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