Variable Star IUAur


IU Aur = BD +34 1051 = HD 035652 = SAO 058059 

GCVS result

ID: 080238
Variable star: IU Aur
RA 2000: 052752.4
DE 2000: +344658
RA 1950:
DE 1950:
Type of variability: EB
Max (mag): 8.19
Min (mag): 8.89
Photometric system: V
Epoch (JD): 38448.4068
Period (d): 1.81147435
Year of outburst for N, SN:
M-m (or D):
Spectrum: B0p+B1Vp
Study reference: N0175
Chart or phot. ref.: HIP
Cases of non-existence:

GCVS NOTE result

Min II = 8.74 . A well-documented light-time effect (P = 294.3d, the semi-amplitude of the O-C residuals is 0.0059d) because of a third body on an eccentric orbit. Precession causes changes of the brightness amplitude: the amplitude of the MinI was observed to vary between 0.46m and 0.70m and that of MinII, between 0.37m and 0.55m. The depths of minima reached their maximum values about JD 2445800 and began to decrease [N0176].

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA result

Variable star: IU Aur
Brightness type: C9
Points: 8
RA 2000: 052752.4
DE 2000: +344658
Max (mag): 8.19
Min (mag): 8.83
Sec (mag):
Photometric system: V
Epoch (JD): 38448.4068
Period (d): 1.81147435
D (hour): B
d (hour):
Astrophysical note:
Reference: AsApS 130,311 (1998)
Finding chart:

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