Variable Star ANUMa


AN UMa = PG 1101+453 = S 07738 

GCVS result

ID: 830067
Variable star: AN UMa
RA 2000: 110425.6
DE 2000: +450314
RA 1950:
DE 1950:
Type of variability: E+XRM
Max (mag): 14.90
Min (mag): 20.2
Photometric system: B
Epoch (JD): 42891.397
Period (d): 0.0797522
Year of outburst for N, SN:
M-m (or D):
Spectrum: pec(e+cont)
Study reference: 09871
Chart or phot. ref.: 09472
Cases of non-existence:

GCVS NOTE result

The epoch of Min for periodic (P = Porb) light variations with A <= 1m B is given. Min II is present. B - V = 0.0 "in Max light, +0.5 during an eclipse "Circular polarization in B light -9% to -35% polarization 0% - 13% with a sharp Max near Max light. Rapid changes (A = 0.03m, f = 0.4 - 0.8 Hz). The mean light level and the light curve shape var. During the low state (B ~19m) the light variability with porb disappears, emission lines occur only during 10% of Porb, IR excess is noted. Soft X-ray source, var. Emissions of H, HeI, He II, NIII, FeII.

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA: Variable star AN UMa not found.

MEKA: Variable star AN UMa 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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