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Details for Revision 4
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Name
  RR Cyg  
AAVSO UID
000-BCV-602 (123 observations)  
Constellation
Cygnus Sequence
J2000.0
20 46 04.56 +44 52 09.7  (311.51900 +44.86936) Search nearby
B1950.0 20 44 20.64 +44 41 08.2
Galactic coord. 84.469 +1.099
Other names

(Internal only)
2MASS J20460455+4452094 AAVSO 2042+44A ASASSN-V J204604.57+445210.8
BD+44 3571 DO 38812 GSC 03178-00345
IOMC 3178000072 IRAS 20443+4441 IRC +40447
PPM 60439 TYC 3178-345-1 WDS J20461+4452A
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Variability type
SRB
Spectral type M3III
Mag. range
8.8 - 9.5 V
Discoverer Thomas Espin (1888)
Epoch
--
Outburst --
Period 235 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto GSC 03178-00332 (V= 13.4) is 17" away to the NE.
2 GCVS Team VB A (B 12.5m, 18.1", 58deg).
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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 Perryman, M. A. C., et al., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
3 M.Beyer, Erg AN 12, N2, 1950. --
4 Z.Kopal, V.Vand, Atlas d'etoiles variables 3, Serie 1, 1933. --
5 Hartwig, E., 1922, Benennung von neu entdeckten veraenderlichen Sternen 1922AN....215..185H
6 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
External Links
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Supporting Documents
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Revision History
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5 Fernig, Leo 2023-03-29 20:26 UTC Discoverer updated from 1922AN....215..185H page 192.
4 Fernig, Leo 2022-04-22 13:36 UTC Discoverer updated from 1907AnHar..55....1C page 29
3 Otero, Sebastian Alberto 2014-03-05 04:25 UTC Range from Tycho and INTEGRAL-OMC 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.