AAVSO Home



Current Time: 29 Mar 2025 23:45:17 UTC
 Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  V1581 Cyg  
AAVSO UID
000-BCV-744 (7 observations)  
Constellation
Cygnus Sequence
J2000.0
19 53 54.50 +44 24 51.8  (298.47708 +44.41439) Search nearby
B1950.0 19 52 16.61 +44 17 21.2
Proper motion
RA: 360.9 +/- 10.0 mas/yDec: -483.4 +/- 11.6 mas/ySource: UCAC4
Galactic coord. 78.858 +8.509
Other names

(Internal only)
1RXS J195354.7+442454 AAVSO 1950+44 G 208-44
G 208-45 GJ 1245.0 AB HAT-155-0000965
(Not logged in)  Add name
Variability type
UV
Spectral type M6Ve
Mag. range
14.2 - 14.84 B
Discoverer --
Epoch
--
Outburst --
Period 0.263241 d  (6.3178 h)
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team G 208 - 44. VB A (B = G 208 - 45, 15.97m V, M6Ve; 7.9", 106deg, 1954; 8.2", 96deg, 1974). mu = 0.71", P = 140deg. The flare was observed during spectroscopic observations [M.Rodono, F.Ciatti, A.Vittone, AJ 85, N3, 298, 1980.]. The companion may be also a UV Cet type variable. The range of combined brightness variation of the system is given.
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 J.D. Hartman, G.A. Bakos, R.W. Noyes, et al., 2011, AJ 141, 166 2011AJ....141..166H
2 S.Cristaldi, M.Rodono, AsAp 48, 165, 1976. 1976A&A....48..165C
3 H.H.Giclas, R.Burnham, JR., N.G.Thomas, Lowell Bull N138, 1967. --
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Admin, VSX 2012-06-16 01:33 UTC Update from [2011AJ....141..166H].
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.

Guidelines    FAQ    Manual    Forum    Variability Types    Passbands    Copyright    Acknowledgments    Privacy    Contact    Help us   
The International Variable Star Index
© 2005-2025 American Association of Variable Star Observers (AAVSO)
Version 1.1 [C]
3.145.134.113