no i mean it wouldn't be additive even if you undid the logarithms,i.e. if you put all the stars in the galaxy in one place. I think it probably is meaningless anyway though, like you say. It's just for comparing one galaxy to another.
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Moon Girl Technologies horrendous beanbag,
Sat 10 May 2008, 22:46,
archived)
yeah exactly(luminosity's additive so it would be. if all the stars were in one place so that the whole thing made sense. which they're not. so it doesn't.)
christ i've not thought properly about magnitudes for a very long time. my life hasn't been much emptier.
i'm going to randomly repost a picture to derail this :)
(christ i've not thought properly about magnitudes for a very long time. my life hasn't been much emptier.
i'm going to randomly repost a picture to derail this :)
boris the spider,
Sat 10 May 2008, 22:50,
archived)