Red clumps
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by
dj_tjitso
Am I correct in seeing red clumps? I thought they only appeared blueish.
Posted
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by
vrooje
admin, scientist
They might be intrinsically blue, but if this galaxy is very far away its blue light will be redshifted into the red bands, so it will appear red. In general, it's best to ignore the colour when you're classifying, as the colour can change for many different instrumentation reasons... thanks!
Posted
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by
dj_tjitso
Okay, thanks for explaining.
Posted
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by
Budgieye
moderator
I opened Tools / Dashboard and the redshift is 0.899 . Maybe it has no star formation, and so no UV light.
Posted