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Designations:
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NGC 7538
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Object Type:
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Emission / Reflection Nebula
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Constellation:
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Cepheus
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23 hr 13 min 38 sec
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+61° 30 min 42 sec
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Size:
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9.0 X 9.0 arcminutes
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Distance:
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9100 light years
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NGC 7538, near the more famous Bubble Nebula, is located in the constellation
Cepheus. It is located about 9,100 light years away from earth. It is home to the biggest yet discovered
protostar which is about 300 times the size of our Solar System. It is located in the Perseus Spiral Arm of
the Milky Way and is probably part of the Cassiopeia OB2 complex.[2] It is a region of active star
formation including several luminous near-IR and far-IR sources.
Source: http://en.wikipedia.org/wiki/NGC_7538
A team of Berkeley astronomers led by Dr. Göran Sandell (USRA-SOFIA) has found the youngest high-mass star ever
observed. The star is surrounded by a huge rotating disk of gas more than 100 times the mass of our Sun and
embedded inside a compact dense cloud core of more than a 1000 solar masses. Further studies of this protostar,
named NGC 7538 S, will yield important clues about the formation process of very high-mass stars. Please click
here for more information |
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Telescope:
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Focal Length:
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1200
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Mount:
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Camera
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Guider:
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Exposures:
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16 10-minute exposures through a hydrogen alpha filter and 4 8-minute exposures through each color filter (red, green and blue). (4 hours and 16 minutes total)
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Location:
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Twin Lakes Star Party in western Kentucky
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Software:
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CCDSoft for image acquisition, processed with CCDStack and Photoshop CS2
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Image Automation:
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