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Latest Details
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Name
  XY Cyg  
AAVSO UID
000-BCV-611 (658 observations)  
Constellation
Cygnus Sequence
J2000.0
19 48 37.18 +41 37 51.9  (297.15492 +41.63108) Search nearby
B1950.0 19 46 56.33 +41 30 18.2
Proper motion
RA: -11.9 +/- 2.7 mas/yDec: -8.7 +/- 11.1 mas/ySource: UCAC4
Galactic coord. 75.931 +7.971
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1945+41 AN 72.1905 ASAS J194837+4137.9
ASASSN-V J194837.20+413752.4 HAT 199-03633 IOMC 3144000051
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Variability type
M
Spectral type S:e
Mag. range
10.4 - 15.5 V
Discoverer Max Wolf and Gisela Wolf
Epoch
15 Jul 1996 (HJD 2450280.0) Ephemeris
Outburst --
Period 299.6 d
Rise/eclipse dur. 40%  (120 d)
Remarks
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1 2016JAVSO..44..156K B-V= 3.05; V-R= 1.98
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Karlsson, T.; Bengtsson, H.; Wikander, T.; et al., 2016, 50 forgotten Miras 2016JAVSO..44..156K
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 A. Pigulski, G. Pojmanski, B. Pilecki, D. Szczygiel, 2008,
arXiv:0808.2558v2 [astro-ph]
2008arXiv0808.2558P
4 A. Pigulski, G. Pojmanski, B. Pilecki, D. Szczygiel, 2008,
arXiv:0808.2558v2 (online data)
2008arXiv0808.2558P
5 J.D.Hartman, G.Bakos, K.Z.Stanek, R.W.Noyes, AJ, 128, 1761, 2004. 2004AJ....128.1761H
6 V.P.Zessewitsch, M.S.Kazanasmas, Atlas of Finding Charts for Variable
Stars, M., 1971.
1971afcv.book.....T
7 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
External Links
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Location    Go   
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 6.32H = 5.26K = 4.59J - K = 1.72
AllWISE W1 = 4.58W2 = 3.98W3 = 3.58W4 = 3.13W1 - W2 = 0.59W3 - W4 = 0.45
APASS-DR9 B = 14.57V = 11.65g' = 12.99r' = 10.28i' = 8.64B - V = 2.92
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 19 48 37.18 +41 37 51.9 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Karlsson, Thomas 2017-03-11 03:34 UTC Elements, range, B-V and V-R from 2016JAVSO..44..156K. Discoverer from AN, 168, 275, 1905
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.