AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  KOI-54  
AAVSO UID
--  
Constellation
Cygnus Sequence
J2000.0
19 46 15.53 +43 56 51.3  (296.56472 +43.94759) Search nearby
B1950.0 19 44 39.31 +43 49 26.0
Proper motion
RA: 17.499 +/- 0.052 mas/yDec: 4.841 +/- 0.056 mas/ySource: Gaia DR1
Galactic coord. 77.766 +9.476
Other names

(Internal only)
HD 187091 KIC 8112039 KID 8112039
UCAC4 670-078511    
(Not logged in)  Add name
Variability type
HB
Spectral type A0
Mag. range
8.38 (0.007) V
Discoverer --
Epoch
29 Sep 2009 (HJD 2455103.549) Ephemeris
Outburst --
Period 41.808235 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 2011arXiv1102.1730W Eccentric binary with a period of 41.805 days. Reflection and ellipsoidal effects near periastron passage. 30 oscillation modes are tidally excited.
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Kirk, B.; et al., 2016, Kepler Eclipsing Binary Stars. VII. The Catalog of
Eclipsing Binaries Found in the Entire Kepler Data Set		 2016AJ....151...68K
2 W.F. Welsh et al., 2011, arXiv:1102.1730v1 [astro-ph.SR] 2011arXiv1102.1730W
3 Kepler data (MAST) --
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.
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 = 8.03H = 8.05K = 8.02J - K = 0.01
AllWISE W1 = 8.00W2 = 8.03W3 = 8.06W4 = 8.28W1 - W2 = -0.03W3 - W4 = -0.22
APASS-DR9 B = 8.31V = 8.27g' = 8.26r' = 8.35i' = 8.50B - V = 0.04
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.
2 Otero, Sebastian Alberto 2017-06-15 23:15 UTC Type and period from 2016AJ....151...68K. UCAC4 position
1 Admin, VSX 2011-02-11 03:10 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]
172.30.1.229