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Latest Details
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Name
  P Cyg  
AAVSO UID
000-BCL-228 (56769 observations)  
Constellation
Cygnus Sequence
J2000.0
20 17 47.20 +38 01 58.6  (304.44667 +38.03294) Search nearby
B1950.0 20 15 56.59 +37 52 35.3
Proper motion
RA: -3.18 +/- 0.13 mas/yDec: -6.45 +/- 0.15 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 75.827 +1.319
Other names

(Internal only)
34 Cyg AAVSO 2014+37A ASASSN-V J201747.25+380158.6
BD+37 3871 HD 193237 HIP 100044
HR 7763 Hen 3-1871 MWC 338
RAFGL 5493S SAO 69773  
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Variability type
SDOR
Spectral type B1Iapeq
Mag. range
3 - 6 V
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 GCVS Team The appearance of the star was firstly noted in 1600, when its brightness was 3m. Since the XVIII century the light of the star varies in the range 4.6m - 5.6m vis. Radio source at the millimetre and centimetre wavelengths.
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References
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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 = 3.62H = 3.41K = 3.05J - K = 0.57
AllWISE W3 = 1.72W4 = 0.81W3 - W4 = 0.90
Images
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Supporting Documents
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Campaigns/Programs
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Revision History
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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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