Converting B-V to V-R

The following graph shows Landolt's V-R versus B-V.

Landolt V-R vs B-V 

This figure shows V-R versus B-V for all Landolt stars having BVRI measurements. The solid line is an empirical fit and the dashed line is the simple equation:   V-R = 0.01 + 0.57 * (B-V)


This site opened:  March 29, 2005 Last Update:  March 29, 2005