Variable Star BSDra

CROSS IDENTIFICATION: BS Dra

BS Dra = BD +73 0890 = HD 190020 = SAO 009579 

GCVS result

ID: 340096
Variable star: BS Dra
RA 2000: 195628.8
DE 2000: +733658
RA 1950:
DE 1950:
Type of variability: EA/DM
Max (mag): 9.12
Min (mag): 9.86
Photometric system: V
Epoch (JD): 41461.4242
Period (d): 3.3640120
Year of outburst for N, SN:
M-m (or D): 07 *
Spectrum: F5V+F5V
Study reference: 00001
Chart or phot. ref.: 08953
Cases of non-existence:

GCVS NOTE result

Min II 9.84.

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA result

Variable star: BS Dra
Brightness type: 09
Points: 4
RA 2000: 195628.8
DE 2000: +733657
Max (mag): 9.12
Min (mag): 9.86
Sec (mag): 9.84
Photometric system: V
Epoch (JD): 48502.320
Period (d): 3.364012
D (hour): 5.7
d (hour): 0
Astrophysical note:
Reference: AA 49,561,GCVSe2001
Finding chart: KB

BRKA result

Variable star: BS:Dra
Brightness type: 09
Points: 4
RA 2000: 195628.8
DE 2000: +733657
Max (mag): 9.12
Min (mag): 9.86
Sec (mag): 9.84
Photometric system: V
Epoch (JD): 48504.002
Period (d): 3.364012
D (hour): 5.7
d (hour): 0
Astrophysical note:
Reference: Vyp
Finding chart: KB

MEKA: Variable star BS Dra 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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