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Details for Revision 3
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Name
  HW Cyg  
AAVSO UID
000-BCH-489 (153 observations)  
Constellation
Cygnus Sequence
J2000.0
19 40 17.75 +32 46 03.8  (295.07396 +32.76772) Search nearby
B1950.0 19 38 22.97 +32 39 02.8
Galactic coord. 67.336 +5.075
Other names

(Internal only)
2MASS J19401774+3246038 AAVSO 1936+32 AN 304.1929
ASASSN-V J194017.79+324604.0 ATO J295.0739+32.7676 CMC14 J194017.7+324603
IOMC 2660000029 IRAS 19383+3239 NSVS 8430910
SVS 1599 UCAC4 614-079832  
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Variability type
SRA
Spectral type M2-M6
Mag. range
10.8 - <17.0 V
Discoverer --
Epoch
30 Oct 1999 (HJD 2451482) Ephemeris
Outburst --
Period 120 d
Rise/eclipse dur. 44%  (53 d)
Remarks
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1 Otero, Sebastian Alberto VSP Note: 14.0 V-mag. companion 7" to the SE.
2 Otero, Sebastian Alberto Mean magnitude changes. Magnitudes contaminated by GSC 02660-02881 = 2MASS J19401815+3246013 (V= 14.0; sep. 7"). Range has been corrected.
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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 Catalogue of Stellar Spectral Classifications (Skiff, 2012) 2010yCat....102023S
3 Catalogue of Stellar Spectral Classifications (Skiff, 2012) 2010yCat....102023S
4 N.E.Kurochkin, Perem. Zvezdy 17, N2, 186, 1970. 1970PZ.....17..186K
5 A.Wachmann, Bergd Abh 6, N2, 1963. --
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Supporting Documents
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1 Phase plot and JD light curve Otero, Sebastian Alberto 2012-08-15 04:51 UTC Phase plot and portion of the light curve with NSVS and AAVSO data.
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2020-05-10 04:03 UTC Gaia DR2 position.
3 Otero, Sebastian Alberto 2012-08-15 04:51 UTC Type, period, epoch and range from NSVS and AAVSO data. Spectral type and identification from Skiff (2012). UCAC4 position.
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.