Quote:
Originally Posted by Merlin66
What about Betelgeuse? Some nice bands in the spectra.
Beta Gem (KO) should show also the K-H bands.
I'm still struggling with the wet and snow/ weather over here!!!!
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I feel I'm about to have a week of foul weather here to
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Quote:
Originally Posted by Heian
what about the stars of Crux? Gamma Crux is a M class, Epsilon Crux is K class, the other's B class. Al (Sheeny) did a fantastic shot showing the colours by a de-focussing technique.
Grabbing their spectra would show what the colour differences represent in terms of star temp + chemical makeup...
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Both sound great. I have also been thinking of the other thread about the reddest star.
http://www.iceinspace.com.au/forum/s...ad.php?t=41125
Spec. may contribute to that debate as well.
Clear skies
