48 Lib
HIP 78207; 48 Lib
Star
Lib
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
4.88
Range
4.74 - 4.96
Variable Type
Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type
B5IIIp
Star Color
Blue-white
(B-V -0.10)
Position & Identifiers
RA
15h 58m 11.4s
Dec
-14° 16' 46.0"
Constellation
Lib
HR
5941
HIP
78207
Flamsteed
48 Lib
Variable ID
FX Lib
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Spectral Classification
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Blackbody Spectrum
Stellar Absorption Spectrum
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Stellar Notes
Gamma Cas 4.79 - 4.96V. Variable polarization. R-I also found at -0.13.
Sco-Cen assoc.; probable member of Sco-Cen cluster; member of Pleiades group.
Strong Lambda 4619 absorption. Shell star with variable hydrogen emission profiles. Also classified B3:IV:e-shell.
Shell oscillations. Unstable circumstellar shell expanding -25k/s. RV has quasi period of about 10 yrs, amp. about | 200k/s.
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