Astrophysics Flashcards
1
Q
What is apparent magnitude?
A
how bright the star appears from
Earth
2
Q
What is absolute magnitude?
A
how bright the star would appear if it
was 10 parsecs from Earth.
3
Q
What is the Hipparcus Scale?
A
classifies astronomical objects by their apparent magnitudes, with the
brightest stars given an apparent magnitude of 1, and the faintest visible stars being given an
apparent magnitude of 6.
4
Q
Define Parsec
A
The distance to an object that subtends an angle of 1 arc second.
