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Details for Revision 2
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Name
  P Cyg  
AAVSO UID
000-BCL-228 (58963 observations)  
Constellation
Cygnus Sequence
J2000.0
20 17 47.20 +38 01 58.6  (304.44667 +38.03294) Search nearby
B1950.0 20 15 56.57 +37 52 35.0
Galactic coord. 75.827 +1.319
Other names

(Internal only)
34 Cyg 2MASS J20174719+3801585 AAVSO 2014+37A
ASASSN-V J201747.25+380158.6 BD+37 3871 GSC 03151-03442
Gaia DR3 2061242908036996352 HD 193237 HIP 100044
HR 7763 Hen 3-1871 MWC 338
PPM 84645 RAFGL 5493S SAO 69773
TIC 12149245 TYC 3151-3442-1  
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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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1 de Groot, M.; Sterken, C.; van Genderen, A. M., 2001, Cyclicities in the
light variations of S Doradus stars III. P Cygni		 2001A&A...376..224D
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Supporting Documents
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Campaigns/Programs
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Revision History
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3 Riesen, Peter 2025-07-31 09:33 UTC Discoverer from 2001A&A...376..224D.
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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