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Latest Details
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Name
  NSVS 8657511  
AAVSO UID
000-BLW-523 (No observations)  
Constellation
Cygnus Sequence
J2000.0
21 01 22.95 +34 05 51.0  (315.34561 +34.09750) Search nearby
B1950.0 20 59 20.89 +33 54 00.6
Proper motion
RA: 36.4 +/- 3.2 mas/yDec: 10.7 +/- 2.4 mas/ySource: UCAC4
Galactic coord. 78.064 -8.060
Other names

(Internal only)
2MASS J21012294+3405510 ASASSN-V J210123.05+340551.1 GSC 02709-02312
UCAC4 621-114163 URAT1 621-533677 USNO-B1.0 0270902312
ZTF J210122.93+340550.9    
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Variability type
SR
Spectral type --
Mag. range
12.960 (0.578) r
Discoverer Ivan Sergey, Dubrovski Sergei, Astrobloknot Team
Epoch
07 Jun 2018 (HJD 2458277.0511) Ephemeris
Outburst --
Period 280.745045 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 2020arXiv200508662C Epoch of minimum given. g-band period= 714.4254220 d.
2 Sergey, Ivan J-K= 1.26. NSVS magnitudes are for the blend of the variable and several nearby stars.
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References
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1 ZTF Catalog of Periodic Variable Stars (online data) 2020arXiv200508662C
2 Chen, X.; et al., 2020, The Zwicky Transient Facility Catalog of Periodic
Variable Stars		 2020arXiv200508662C
3 Northern Sky Variability Survey, Wozniak, P.R., et al., 2004 2004AJ....127.2436W
External Links
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Location    Go   
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 9.09H = 8.09K = 7.83J - K = 1.26
AllWISE W1 = 7.62W2 = 7.70W3 = 7.32W4 = 6.97W1 - W2 = -0.08W3 - W4 = 0.35
APASS-DR9 B = 14.46V = 13.15g' = 13.55r' = 12.59i' = 11.23B - V = 1.31
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 21 01 22.95 +34 05 51.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 Photometric curve Sergey, Ivan 2016-02-26 15:34 UTC
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Otero, Sebastian Alberto 2021-10-26 01:40 UTC Update from 2020arXiv200508662C. Gaia EDR3 position.
1 Sergey, Ivan 2016-02-27 00:32 UTC Initial submission.

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