Green object
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by
lidiga
What's this green object? A star?
Posted
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by
Budgieye
moderator
Yes. Yellow stars are green on these images. The colours are artifically blue-shifted, which is fine for faraway galaxies but a doesn't work for nearby objects.
see
Zooite Guide to SDSS Spectra
http://www.galaxyzooforum.org/index.php?topic=274815.0Posted