Variable Star RRDra


RR Dra = AN 1904.0188 

GCVS result

ID: 340010
Variable star: RR Dra
RA 2000: 184147.4
DE 2000: +624035
RA 1950:
DE 1950:
Type of variability: EA/SD
Max (mag): 10.0
Min (mag): 13.3
Photometric system: V
Epoch (JD): 44483.391
Period (d): 2.8313215
Year of outburst for N, SN:
M-m (or D): 15
Spectrum: A2
Study reference: 00001
Chart or phot. ref.: 00101
Cases of non-existence:

GCVS NOTE result

d = 0.015P. Min II 10.1. P var. Before JD2439000 "Min I = 2433390.458 + 2.83123d*E [01001] since JD2440000 - see Table.

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA result

Variable star: RR Dra
Brightness type: 12
Points: 4
RA 2000: 184147.6
DE 2000: +624031
Max (mag): 10.0
Min (mag): 13.3
Sec (mag): 10.1
Photometric system: V
Epoch (JD): 51363.550
Period (d): 2.831305
D (hour): 10.2
d (hour): 1.0
Astrophysical note: P2E2
Reference: Paschke
Finding chart: K1

MEKA: Variable star RR 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..

Search for variable star:
Search in: All catalogues / databases
 Search for data on the NET
 Open European Journal on Variable stars

 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
 Show DSS plate 15'x 15' (use coords: )
(Selected catalogue has to be checked above.)