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Astr110 Photography Projects, Spring 2009

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NGC3981, Ben Sietsema

NGC3981

NGC 3981 is a prime example of a Spiral Galaxy even though The Sky software does not list it as such. The bright center and spiral arms give credibility to the assumption of NGC 3981 being a spiral galaxy. The bright center is due to massive number of stars in which life could not exist.

The angular size of NGC 3981 is 3 arcminutes. The distance of NGC 3981 is calculated at 80 million light years from earth. The linear size is calculated to be 70,000 light years.

 

References:

TheSky Astronomy Software Copyright 1984-2000

Right Ascension (J2000) 11:56:36.3
Declination (J2000) -19:57:21
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 60 seconds in CBVR

Date observed

April 4, 2009 (CBVR)