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  V1687 Cyg  
000-BCV-759 (1250 observations)  
Cygnus Sequence
20 20 27.98 +43 51 16.3  (305.11658 +43.85453) Search nearby
B1950.0 20 18 46.78 +43 41 42.9
Proper motion
RA: -4.741 +/- 0.027 mas/yDec: -1.511 +/- 0.025 mas/ySource: Gaia DR1
Galactic coord. 80.930 +4.177
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J202028.5+435111 AAVSO 2017+43 ADS 13736
BD+43 3571 HD 193793 HIP 100287
NSV 13030 SAO 49491 WR 140
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Variability type
Spectral type WC7p+O5
Mag. range
4 (2.5) K
Discoverer --
Outburst --
Period --
Rise/eclipse dur. --
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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 J.A.Hackwell, R.D.Gehrz, G.L.Grasdalen, ApJ 234, 133, 1979. 1979ApJ...234..133H
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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 = 5.55H = 5.43K = 5.04J - K = 0.51
AllWISE W1 = 3.73W3 = 1.74W4 = 1.53W3 - W4 = 0.21
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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Revision History
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2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.