Variable Star MV Lyr


MV Lyr = SVS 1021 

GCVS result

ID: 520284
Variable star: MV Lyr
RA 2000: 190716.3
DE 2000: +440109
RA 1950:
DE 1950:
Type of variability: NL
Max (mag): 12.2
Min (mag): 18.0
Photometric system: B
Epoch (JD):
Period (d):
Year of outburst for N, SN:
M-m (or D):
Spectrum: Op+M5V
Study reference: 09372
Chart or phot. ref.: 00365
Cases of non-existence:

GCVS NOTE result

SB (Porb = 0.1336d [09373]). Quasiperiodic fadings of different amplitude: "Min = 2425558 + 455.5d*E (JD2425500 - 30100) "Min = 2430113 + 325.3d*E (JD2430100 - 36900) Min = 2436944 + 357.8d*E (JD2436900 - 44100) [09372]. After JD2444100 the mean brightness "level became fainter by 5m up to 3m of 1 - 2 months duration are observed [09404]. During the bright level of light, flickering up to 0.4m in 5 Min in U bAnd is observed [00365]. Soft X-ray source. "B - V: 0.00 +- 0.40

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA: Variable star MV Lyr not found.

MEKA: Variable star MV Lyr 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.
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