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Name
  BD+44 3111  
AAVSO UID
--  
Constellation
Cygnus Sequence
J2000.0
19 21 36.03 +45 07 06.8  (290.40013 +45.11856) Search nearby
B1950.0 19 20 05.14 +45 01 20.7
Proper motion
RA: 3.871 +/- 1.186 mas/yDec: -2.534 +/- 0.790 mas/ySource: Gaia DR1
Galactic coord. 76.817 +13.927
Other names

(Internal only)
1SWASP J192136.03+450706.8 2MASS J19213602+4507068 BD+44 3115
GSC 03543-00566 KIC 8881697 Renson 50420
TYC 3543-566-1    
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Variability type
DSCT
Spectral type A5m
Mag. range
10.49 V (0.004)Kp
Discoverer --
Epoch
--
Outburst --
Period 0.060397 d  (86.972 min)
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Wrongly identified as BD+44 3115 in SIMBAD (up to July 2017) which caused confusion in the literature.
2 Admin, VSX Frequencies detected in the interval [5.5, 76.3] c/d.
3 2011arXiv1107.0246S 7 frequencies detected.
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References
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1 K. Uytterhoeven et al., 2011, arXiv:1107.0335v1 [astro-ph.SR] 2011arXiv1107.0335U
2 B. Smalley et al., 2011, arXiv:1107.0246v1 [astro-ph.SR] 2011arXiv1107.0246S
3 Macrae, D. A., 1952, Stellar Spectra and Colors in Cygnus at Galactic
Latitude + 14°.		 1952ApJ...116..592M
4 Kepler data (MAST) --
External Links
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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 = 10.04H = 9.99K = 9.98J - K = 0.07
AllWISE W1 = 9.95W2 = 9.97W3 = 9.92W1 - W2 = -0.02
APASS-DR9 B = 10.82V = 10.49g' = 10.61r' = 10.53i' = 10.55B - V = 0.34
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2017-07-05 00:39 UTC Gaia DR1 position. Mean magnitude from APASS. Identification from 1952ApJ...116..592M.
2 Admin, VSX 2011-07-07 02:54 UTC Update from [2011arXiv1107.0335U].
1 Admin, VSX 2011-07-05 01:23 UTC Initial upload.

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