Variable Star alfCrB


alf CrB = BAY CrB alf = BD +27 2512 = BS 5793 = FLM CrB 005 = HD 139006 = IRC +30275 = SAO 083893 

GCVS result

ID: 279001
Variable star: alf CrB
RA 2000: 153441.3
DE 2000: +264253
RA 1950:
DE 1950:
Type of variability: EA/DM
Max (mag): 2.21
Min (mag): 2.32
Photometric system: B
Epoch (JD): 23163.770
Period (d): 17.359907
Year of outburst for N, SN:
M-m (or D): 03 *
Spectrum: A0V+G5V
Study reference: 01106
Chart or phot. ref.: 05056
Cases of non-existence:

GCVS NOTE result

lambda eff = 7230 A: DI = 0.034P, DII = 0.018P, Min II - Min I = 0.66P, depth of Min I 0.10m, Min II 0.025m.

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA: Variable star alf CrB not found.

MEKA: Variable star alf CrB not found.

Please put the variable's designation into field in common style - for example: ZUMa, zuma, V477Cyg, v1182Cyg, NSV 255, nsv2544. Designation of bright variable stars like Beta Persei type in short style (three letters) - bet Per. The complete cross-identification among more then 30 catalogues will be done after submitting.
Spaces and cases are ingnored..

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 GCVS (2011)  43.675 records
 NSV (1997) 14.811 records
 BRKA (2001)  1.432 records
 MEKA (2001)  147 records
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 BCVS (1994)  529.953 records
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