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Date: Sept. 21, 2014 - Location: Denton, Texas Telescope: ATRC12 - Camera: ST-10XME - Mount: MI-250 Guided using Innovations Foresight On Axis Guider (ONAG) Exposure: Lum - Red - Green - Blue = 30 min. each - 120 sec. sub-exposures Click on the image to view at higher resolution. |
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NGC 457 is commonly known as the Owl Cluster. The two very bright stars located in the upper left of the image may be construed as the eyes of a “wise old owl”. Some also refer to NGC 457 as the “ET” cluster and say the big “eyes” and rest of the cluster stars resemble the famous movie character. The cluster is located in the constellation Cassiopeia and lies approximately 7,900 light-years from the Earth. The age of the cluster is estimated to be about 21 million years. The brightest star in the image is Pi Cassiopeiae and is actually a foreground star and not physically a member of the cluster. 1http://en.wikipedia.org/wiki/NGC_457
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