- #1
victoriafello
- 34
- 0
I need to work out the luminosity of 3 stars 85 PEG A / B / C using the following data and equation,
Absolute Mag of stars A/B/C/SUN
MA = 5.28
MB = 8.53
MC = 15
MS = 4.84
Apparent Mag of stars A/B/C
mA = 5.75
mB = 9.00
mC = 15.47
LS = Luminosity of Sun – 1 ?
Equation
MA-MS = -2.5 LOG ( LA/LS)
I have got a result of 0.667 for A and 0.033 for B, But when i have looked online at star catalogues the actual lumisosity is different, where am i going wrong ?
Absolute Mag of stars A/B/C/SUN
MA = 5.28
MB = 8.53
MC = 15
MS = 4.84
Apparent Mag of stars A/B/C
mA = 5.75
mB = 9.00
mC = 15.47
LS = Luminosity of Sun – 1 ?
Equation
MA-MS = -2.5 LOG ( LA/LS)
I have got a result of 0.667 for A and 0.033 for B, But when i have looked online at star catalogues the actual lumisosity is different, where am i going wrong ?