Give the 3 names of your stars. For each star state the temperature, the class, the balmer lines and any other absorption lines that you used to determine your classification. Then go to the simbad website and find the B and V magnitudes for each star.
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ReplyDeleteStar: hd331054 is a weak class G star. Its temperature is 5200-6000k. Its balmerlines are weak
ReplyDeleteStar: hd332087 is a medium weak class F star. Its temperature is 6000-7500k. Its balmerlines are strong.
Weins law Temp (k) = constant/peak wavelength (angstroms)
ReplyDeleteabsorption lines:
δ: 4101
γ: 4340
β: 4861
α: 6563
5. Star: HD 331241.ga3
Temp: 6666.67k
Class: F
Hydrogen Lines: Medium Weak
B: 11.30 [0.07] D
V: 10.73 [0.06] D
6. Star: HD 331246.ga3
Temp:8108.11k
Class: A
Hydrogen Lines: Strong
B 9.00 [~] D ~
V 9.00 [~] D ~
7. Star: HD331066.ga3
Temp: 7894.74k
Class: A
Hydrogen Lines: Strong
B 9.58 [~] D ~
V 9.59 [~] D ~
HD 331055
ReplyDeleteTemperature = 6440 K
Stellar Class = F
Balmer Lines = medium
Other absorption lines present = HE I, MG I, C II
B = 10.97
V = 10.39
HD 331057
Temperature = 7430 K
Stellar Class = A
Balmer Lines = strong
Other absorption lines present = SC II, H 8, H 9, H 11
B = 9.20
V = 9.20
HD 3310554
Temperature = 5410 K
Stellar Class = K
Balmer Lines = very weak
Other absorption lines present = MG I,
B = 9.85
V = 8.91
star.14 class.A
ReplyDeleteB 10.39 [~] D ~
star.16 class.F
b
v
star.17 class.K
b
v