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.
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.