1
Q
What is the magnitude of a star
A
How bright it is
2
Q
What is apparent magnitude of a star?
A
How bright an object appears to be from the Earth (m)
3
Q
What is absolute magnitude (M)
A
How bright the object is in space 10 parsecs away - its actual magnitude
4
Q
Absolute magnitude equation
A
M= m+5 log d
5
Q
Apparent magnitude equation
A
m = M-5 +log d
