Absolute Magnitude of Sun I Band Calculator

Tully-Fisher relation was published by R. Brent Tully and J. Richard Fisher in 1977. It is a relationship between intrinsic luminosity of spiral galaxy and the width of its emission lines. Here you can calculate the absolute magnitude of sun I band based on the observed maximum rotation velocity and galactic inclination.

Calculate the Absolute Magnitude of Sun I Band

km/s
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Formula:

MI ≃ -7.68 log10 (2vrot / sin i) - 2.58 Where, MI = Iband Absolute Magnitude vrot = Observed Maximum Rotation Velocity i = Galactic Inclination

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