Gaia G mag vs V mag.

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Gaia G mag vs V mag. Empty Gaia G mag vs V mag.

Post by Sirius_Alpha on 15th November 2018, 8:48 pm

Does anyone have a convenient formula to convert between G magnitudes and V magnitudes?

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Gaia G mag vs V mag. Empty Re: Gaia G mag vs V mag.

Post by Lazarus on 30th January 2019, 6:07 pm

This paper (pdf) contains a load of magnitude transformations, see table A.2 for details.

For example, they give the following relationship for G-V, taking account also of the colour as expressed by GBP-GRP (Gaia blue and red passbands):

G-V = -0.01760-0.006860*(GBP-GRP)-0.1732*(GBP-GRP)2±0.045858
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