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Latest Details
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Name
  NSV 25408  
AAVSO UID
--  
Constellation
Cygnus Sequence
J2000.0
20 57 49.92 +34 09 51.1  (314.45800 +34.16418) Search nearby
B1950.0 20 55 48.62 +33 58 12.4
Proper motion
RA: -8.9 +/- 2.3 mas/yDec: -2.5 +/- 3.4 mas/ySource: UCAC4
Galactic coord. 77.634 -7.457
Other names

(Internal only)
1SWASP J205749.92+340951.2 2MASS J20574991+3409509 ASASSN-V J205750.01+340950.9
ZTF J205749.91+340951.0    
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Variability type
SR
Spectral type --
Mag. range
12.957 (0.581) r
Discoverer --
Epoch
04 May 2019 (HJD 2458608.1265) Ephemeris
Outburst --
Period 80.2483191 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.
2 Otero, Sebastian Alberto J-K= 1.26; B-V= 1.62.
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
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 Butters, O. W.; et al., 2010, The first WASP public data release 2010A&A...520L..10B
4 R.Margoni, R.Stagni, AsAp Suppl 56, No.1, 87, 1984. 1984A&AS...56...87M
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 = 8.37H = 7.43K = 7.11J - K = 1.26
AllWISE W1 = 6.94W2 = 6.95W3 = 6.22W4 = 5.40W1 - W2 = -0.01W3 - W4 = 0.82
APASS-DR9 V = 13.70g' = 14.51r' = 13.10i' = 11.02
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 57 49.92 +34 09 51.1 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2021-10-26 08:54 UTC Update from 2020arXiv200508662C. Gaia EDR3 position.
2 Otero, Sebastian Alberto 2016-05-30 22:01 UTC Type and amplitude from SuperWASP data. UCAC4 position.
1 Admin, VSX 2005-12-18 01:33 UTC Preserved original object data.