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Name
  V1981 Cyg  
AAVSO UID
000-BDC-398 (242 observations)  
Constellation
Cygnus Sequence
J2000.0
21 02 24.20 +44 47 28.0  (315.60083 +44.79111) Search nearby
B1950.0 21 00 36.91 +44 35 34.6
Galactic coord. 86.273 -1.166
Other names

(Internal only)
AAVSO 2058+44A BD+44 3679 DO 39142
GSC 03180-00020 HD 200527 HIP 103828
HR 8062 IRC +40464 PPM 60869
RAFGL 2689 SAO 50381 TIC 304387398
TYC 3180-20-1    
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Variability type
SRB
Spectral type --
Mag. range
7.5 - 8.1 B
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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References
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1 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
2 Perryman, M. A. C., et al., 1997, The HIPPARCOS Catalogue 1997HIP...C......0E
3 J.D.Fernie, PASP 103, No.664, 559, 1991. 1991PASP..103..559F
4 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 1990A&AS...85.1069S
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2021-02-17 05:41 UTC Spectral type from Skiff (2016). Maximum magnitude from GCPD data. Minimum magnitude derived from Hipparcos and Tycho data.
3 Admin, VSX 2017-12-16 03:09 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
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.