Sunday, January 7, 2007

Eta Cassiopeia

Object: Eta Cassiopeia
Constellation: Cas
Type: Double Star
Date and Time: Jan 6, 2007 00:30 UT
Conditions: Partly cloudy, 60°, light winds
Instrumentation: 60mm refractor, 10mm (80x)
Rating
Targeting: 3
Visibility: 2
Wow: 0
Interest: 1
Total rating: 6

Comments: This double is easy to locate near Alpha Cassiopeiae and is fairly obvious as a double at 80x. The secondary is a good deal fainter (7.5) and colorless compared to the significantly brighter primary (3.4) which appears to have a bit of a yellowish – orange tone. PA guesstimate was 330°, actual is 307°. Sparse field stars accompany it. This primary is apparently pretty similar to Sol and so offers you the perspective of what our own star would look like ~19 light years away.
Sketch:

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