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Details for Revision 2
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Name
  khi Cyg  
AAVSO UID
000-BDC-152 (No observations)  
Constellation
Cygnus Sequence
J2000.0
19 50 33.92 +32 54 50.6  (297.64133 +32.91406) Search nearby
B1950.0 19 48 38.50 +32 47 09.4
Galactic coord. 68.539 +3.276
Other names

(Internal only)
AAVSO 1946+32 BD+32 3593 HD 187796
HIP 97629 HR 7564 IOMC 2673000052
IRC +30395 RAFGL 2465 SAO 68943
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Variability type
M
Spectral type S6,2e-S10,4e(MSe)
Mag. range
3.3 - 14.2 V
Discoverer --
Epoch
02 Apr 1974 (HJD 2442140) Ephemeris
Outburst --
Period 408.05 d
Rise/eclipse dur. 41%  (167.3005000000000 d)
Remarks
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1 van Ballegoij, Erwin J The star is discovered by Gottfried Kirch in 1686 (Source: Burnham's Celestial Handbook, Volume 2, page 762)
2 GCVS Team VB A (B 10.8m, 158", 254deg). S 6 + %1e (Tc). SiO maser. P var.Max = 2393559 + 405.88d*E (JD2337150 - 94000); since JD2394000 - see Table.
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References
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1 T. Jayasinghe, K. Z. Stanek, C. Kochanek, et al., 2019 (in preparation) --
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 W. Ceraski, 1908, Nouvelles de la Science, Variétés 1908BSAFR..22..241C
4 T. Karlsson, Maxima of Mira stars --
5 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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Supporting Documents
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Campaigns/Programs
 Legacy LPV Program
 LPV Program
 LPV Humps
Revision History
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3 Billiaert, Bruno 2015-12-29 18:29 UTC discoverer added (1908BSAFR..22..241C)
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.