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Old 04-10-2020, 07:41 AM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,922
Peter,
Yes, you can take a spectrum of the gas gaints and then a spectrum of a G2V star (or just use the Pickles/ Miles standard) and effectively remove the solar spectrum from the planet spectrum.
What's left behind is a fingerprint of the atmospheric absorption, usually the methane bands.
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