Variable Star EF Boo

CROSS IDENTIFICATION: EF Boo

EF Boo = BD +51 1929 = HD 234150 = SAO 029189 

GCVS result

ID: 090150
Variable star: EF Boo
RA 2000: 143230.5
DE 2000: +504941
RA 1950:
DE 1950:
Type of variability: EW/RS
Max (mag): 9.23
Min (mag): 9.83
Photometric system: V
Epoch (JD): 52500.2231
Period (d): 0.4205161
Year of outburst for N, SN:
M-m (or D):
Spectrum: G5
Study reference: N0041
Chart or phot. ref.: HIP
Cases of non-existence:

GCVS NOTE result

Min II = 9.78 . P varies, current elements are given.

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA result

Variable star: EF Boo
Brightness type: C10
Points: 6
RA 2000: 143230.6
DE 2000: +504941
Max (mag): 9.43
Min (mag): 9.99
Sec (mag):
Photometric system: V
Epoch (JD): 48500.3016
Period (d): 0.42051309
D (hour): W
d (hour):
Astrophysical note:
Reference: IBVS 5033
Finding chart: X

MEKA: Variable star EF Boo not found.

DSS plate 15'x 15'

Image from the Digitized Sky Survey at the STScI Archive.

 

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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