Variable Star BU Dra


BU Dra = BD +57 1546 = HD 238414 = SAO 029364 

GCVS result

ID: 340098
Variable star: BU Dra
RA 2000: 145840.1
DE 2000: +564507
RA 1950:
DE 1950:
Type of variability: EA/SD:
Max (mag): 10.4
Min (mag): 11.4
Photometric system: p
Epoch (JD): 28656.530
Period (d): 1.91417
Year of outburst for N, SN:
M-m (or D): 07 *
Spectrum: F5
Study reference: 03160
Chart or phot. ref.: BD
Cases of non-existence:

GCVS NOTES not found

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA result

Variable star: BU Dra
Brightness type: H11
Points: 7
RA 2000: 145839.9
DE 2000: +564507
Max (mag): 10.4
Min (mag): 11.4
Sec (mag):
Photometric system: P
Epoch (JD): 28656.495
Period (d): 1.914183
D (hour): 3.2
d (hour): 0
Astrophysical note:
Reference: BAVR 37,26 (1988)
Finding chart: BV

MEKA: Variable star BU Dra 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
 CzeV, SvkV and RafV catalogues (new variables)
 BCVS (1994)  529.953 records
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