By Tom Marsala | 2020-01-01
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On 01/02/2020 12:25 am by Dr Ski | Valencia Observatory, central Philippines
The image sensor does a great job of detecting stellar spectral classes!
V460 and V374 are variable stars in C96.
V460 has a Color Index of +1.8 and is a red giant sun (M-type) with a surface temp <3500°.
V374 has a Color Index of -0.1 and is a blue giant sun (B-type) with a surface temp >15,000°.
There is a good mix of white, blue, orange and red stars in this image, down to Mag +10!
Canon G9X, 90mm/f5.6 refractor
Eyepiece projection at 12X
4s@ISO3200
Image cropped and enlarged.
