Cep OB 3b

Cep OB 3b

Cep OB 3b is a cluster in the northern constellation of Cepheus. It is similar in some ways to the famous cluster found in the Orion Nebula. But unlike the Orion Nebula, there is relatively little dust and gas obscuring our view of Cep OB 3b. Its massive, hot stars have blown out cavities in the gaseous cloud with their intense ultraviolet radiation which mercilessly destroys everything in its path. Cep OB 3b may show us what the Orion Nebular Cluster will look like in the future.

Observatory: WIYN Observatory  Kitt Peak, Arizona
Telescope: WIYN 0.9-Meter
Instrument: Mosaic I  
Astronomer: T.S. Allen (University of Toledo), T.A. Rector (University of Alaska Anchorage) and WIYN
Date of Observation: 09-17-2012
Filters and Assigned Colors: B (blue), V (cyan), I (orange) and Hydrogen-Alpha (red)
Exposure Times: 6x20min in B, 5x20min in V, 6x20min in I and 5x30min in H-alpha
Location of Image: Cepehus
Field of View: 57.6 x 56.6 arcmin
Orientation: North is left, East is down
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