Can a star closer than 10 parsecs and a star farther than 10 parsecs have the same absolute magnitude?
- ArgentLv 73 years ago
Easily. Many stars, at many different distances, have the same absolute magnitude. The *apparent* magnitude, now, is a function of distance.
- poornakumar bLv 73 years ago
Only stars located exactly at 10 parsecs (parallax"= 0.1) have the same absolute magnitude (as the apparent magnitude). Nearer, the star has more absolute magnitude (more negative number or towards negative) & vice versa. Such stars (with parallax"/Apparent/Absolute) are
Zavijah (β Velorum) ... 0.104 3.61 3.627
Porrima (γ Velorum) ... 0.099 3.65 3.646
1437 Centauri ... 0.099 4.91 4.906Source(s): my notes
- QuadrillianLv 73 years ago
Absolute magnitude has nothing to do with distance.
- 3 years ago