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Name
  NSVS 5846660  
AAVSO UID
--  
Constellation
Cygnus Sequence
J2000.0
21 07 19.06 +53 24 13.6  (316.82941 +53.40377) Search nearby
B1950.0 21 05 46.86 +53 12 04.3
Proper motion
RA: 4.4 +/- 4.9 mas/yDec: 11.5 +/- 5.0 mas/ySource: UCAC4
Galactic coord. 93.221 +3.992
Other names

(Internal only)
2MASS J21071909+5324136 ASASSN-V J210719.07+532413.6 IRAS 21057+5312
IRC +50360 VSX J210719.0+532413 ZTF J210719.06+532413.6
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Variability type
SR
Spectral type M7
Mag. range
16.941 (1.464) g
Discoverer Martin Nicholson
Epoch
20 Apr 2018 (HJD 2458229.4833) Ephemeris
Outburst --
Period 289.7411205 d
Rise/eclipse dur. --
Remarks
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1 2020arXiv200508662C Epoch of minimum given. r-band period= 276.2712808 d.
2 Nicholson, Martin B-V = 2.17; J-K = 2.203
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References
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1 NSVS M. Nicholson, unpublished
2 ZTF Catalog of Periodic Variable Stars (online data) 2020arXiv200508662C
3 Chen, X.; et al., 2020, The Zwicky Transient Facility Catalog of Periodic
Variable Stars		 2020arXiv200508662C
4 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 1973AJ.....78..389V
External Links
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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 = 4.91H = 3.46K = 2.70J - K = 2.20
AllWISE W3 = 1.81W4 = 1.18W3 - W4 = 0.63
APASS-DR9 g' = 17.33r' = 13.49i' = 10.45
SDSS-DR12 u = 16.31g = 17.30r = 15.19i = 9.98z = 12.37u - g = -1.00r - i = 5.22
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 21 07 19.06 +53 24 13.6 (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 01:12 UTC Update from 2020arXiv200508662C. Gaia EDR3 position.
2 Admin, VSX 2017-12-15 13:52 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
1 Nicholson, Martin 2006-12-02 00:38 UTC Initial submission.

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