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Latest Details
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Name
  V1770 Cyg  
AAVSO UID
000-BCK-897 (234 observations)  
Constellation
Cygnus Sequence
J2000.0
20 12 06.54 +38 21 17.8  (303.02725 +38.35494) Search nearby
B1950.0 20 10 17.17 +38 12 15.2
Proper motion
RA: -7.915 +/- 0.040 mas/yDec: -6.736 +/- 0.042 mas/ySource: Gaia DR1
Galactic coord. 75.476 +2.426
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO_ALIAS 2009+38 D AAVSO_ALIAS 74 COMP SW ALS 10934
ASASSN-V J201206.58+382116.7 BD+37 3821 HD 192163
HIP 99546 Hen 3-1849 IOMC 3151000041
KIC 3302452 LS II +38 11 NSV 12896
PPM 84423 SAO 69592 TYC 3151-1765-1
WR 136    
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Variability type
WR
Spectral type WN6-B
Mag. range
7.36 - 7.52 V
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto V= 7.48-7.52 in GCPD data but V= 7.36 - 7.39 during the Hipparcos mission. No evidence of eclipses.
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References
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1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)		 2012arXiv1210.0821A
2 The HIPPARCOS Catalogue 1997HIP...C......0E
3 A.A.Aslanov, Astr Tsirk No.1237,5,1982. 1982ATsir1238....5A
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 = 6.13H = 5.90K = 5.56J - K = 0.57
AllWISE W1 = 4.60W2 = 3.83W3 = 3.75W4 = 2.80W1 - W2 = 0.77W3 - W4 = 0.95
APASS-DR9 B = 7.72V = 7.54g' = 7.54r' = 7.51i' = 7.11B - V = 0.19
Images
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Supporting Documents
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Stellar Association Membership
 ASCC 111 Open Cluster 2012A&A...548A..97Z
Revision History
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3 Otero, Sebastian Alberto 2012-09-11 07:55 UTC Maximum magnitude and type from Hipparcos data.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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