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Latest Details
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Name
  V2871 Cyg  
AAVSO UID
000-BFT-448 (211 observations)  
Constellation
Cygnus Sequence
J2000.0
19 43 36.74 +32 25 20.8  (295.90308 +32.42244) Search nearby
B1950.0 19 41 41.00 +32 18 07.0
Proper motion
RA: 45.5 +/- 1.5 mas/yDec: -6.1 +/- 1.1 mas/ySource: UCAC4
Galactic coord. 67.378 +4.297
Other names

(Internal only)
1RXS J194337 +322523 1RXS J194337.2+322523 2MASS J19433674+3225206
GSC 02660-04155 IDS 19398+3211 B VSX J194336.7+322520
WDS J19437+3225 B    
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Variability type
EW
Spectral type --
Mag. range
10.70 - 10.88 V
Discoverer Robert A. Koff, AAVSO Observer Code KRV
Epoch
09 Jun 2008 (HJD 2454626.72445) Ephemeris
Outburst --
Period 0.3529 d  (8.47 h)
Rise/eclipse dur. --
Remarks
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1 2019PZ.....39....3K VB B (A 10.9mV; B 11.2mV, 17", 299deg, 2016).
2 Koff, Robert J-Ks = 0.744
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References
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1 E.V. Kazarovets, N.N. Samus, O.V. Durlevich et al., 2019, The 82nd
Name-List of Variable Stars. Part II – RA 18h to 20h and Novae		 2019PZ.....39....3K
2 Samus, N. N.; Kazarovets, E. V.; Durlevich, O. V.; et al., 2017, General
Catalogue of Variable Stars: Version GCVS 5.1 (November 2019)		 2017ARep...61...80S
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 = 8.83H = 8.19K = 8.08J - K = 0.74
AllWISE W1 = 7.97W2 = 7.96W3 = 7.83W4 = 7.25W1 - W2 = 0.01W3 - W4 = 0.59
Images
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Supporting Documents
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2 Observational Data File for VSX J194336.7+322521 Koff, Robert 2008-06-19 06:07 UTC Observational Data Record for VSX J194336.7+322521
1 Lightcurve for VSX J194336.7+322521 Koff, Robert 2008-06-19 04:04 UTC Phased lightcurve for VSX J194336.7+322521, 6/9/2008 - 6/13/2008
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Revision History
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3 Otero, Sebastian Alberto 2020-05-24 18:44 UTC Position from the GCVS (November 2019 version).
2 Admin, VSX 2019-11-01 02:41 UTC Update from [2019PZ.....39....3K].
1 Koff, Robert 2008-06-19 02:19 UTC Initial submission.

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