Stellar temperature and stellar appearance in sunsets?
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Stellar temperature and stellar appearance in sunsets?
Straight-forward question, I guess.
Assuming standard conditions of 1 bar atmosphere pressure at the surface on a habitable planet, on a clear day at observer location, does the spectral type/temperature of a star influence how it appears to a human observer during sunsets (eg, cooler sun appears redder)?
Assuming standard conditions of 1 bar atmosphere pressure at the surface on a habitable planet, on a clear day at observer location, does the spectral type/temperature of a star influence how it appears to a human observer during sunsets (eg, cooler sun appears redder)?

PlutonianEmpire- Rock

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Registration date: 2012-01-29

Re: Stellar temperature and stellar appearance in sunsets?
I would assume so. Rayleigh scattering preferentially scatters shorter wavelengths of course. I don't know how noticeable changes in the star's temperature would be at sunset though. From what I've been able to figure out, until stars get down to below 3000 K, they tend to look white to the eye.
Lazarus?
Lazarus?
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Sirius_Alpha- Admin

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Re: Stellar temperature and stellar appearance in sunsets?
I've been meaning to work up some code that would let me play around with this kind of thing for some time. Never got round to it though.
Planetary Habitability Laboratory give us http://phl.upr.edu/library/media/sunsetofthehabitableworlds - not sure how accurate that is though.
Planetary Habitability Laboratory give us http://phl.upr.edu/library/media/sunsetofthehabitableworlds - not sure how accurate that is though.
Lazarus- dK star

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Re: Stellar temperature and stellar appearance in sunsets?
I think that picture is supposed to depict what each star's angular size would be...although some are redder than others.
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Sunchaser- Asteroid

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