Can anyone help me get my head around this one?(adsbygoogle = window.adsbygoogle || []).push({});

A star with a parallax angle of pi = 10 millisecs and has apparant magnitude of V= 10.2

How can I determine absolute magnitude:

I have the formula M=v -5logd -5 +A which can be ignored.

d=1/pi but I am always determining d which is less than that of the sun's distance!

Thanks Red

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Magnitudes of stars

**Physics Forums | Science Articles, Homework Help, Discussion**