Lambda Eri
HIP 23972; Lambda Eri; 69 Eri
Star
Eri
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
4.27
Range
4.17 - 4.34
Period
16.8 hours
Variable Type
Lambda Eridani (Be Star)
Spectral Type
B2IVne
Star Color
Blue
(B-V -0.19)
Position & Identifiers
RA
05h 09m 08.8s
Dec
-08° 45' 15.0"
Constellation
Eri
HR
1679
HIP
23972
Bayer
Lambda
Flamsteed
69 Eri
Variable ID
Lam Eri
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Stellar Notes
Beta C 4.22 - 4.34V, 0.701538d. Both spectroscopic and new photometric data suggest period 0.70177d. Small changes in | mean brightness (<0.1mag).
Shell star. H alpha emission with variable profile. Also classified B2III(e)p.
0.701538d. Amp. varies 30 to 60k/s on time scale of a year or less, correlated with hydrogen emission. Possibly | pulsating.
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