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Name
  KELT-9  
AAVSO UID
000-BNQ-986 (12 observations)  
Constellation
Cygnus Sequence
J2000.0
20 31 26.35 +39 56 19.8  (307.85981 +39.93882) Search nearby
B1950.0 20 29 36.80 +39 46 07.8
Galactic coord. 78.913 +0.249
Other names

(Internal only)
2MASS J20312634+3956196 AG+39 2158 AGKR 18360
BD+39 4221 CEL 5094 GSC 03157-00638
HD 195689 HIP 101252 PPM 85104
SAO 70152 TD1 26880 TIC 16740101
TYC 3157-638-1 uvby98 100195689  
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Variability type
EP
Spectral type B9.5/A0
Mag. range
7.55 (0.007) V
Discoverer --
Epoch
14 Mar 2015 (HJD 2457095.6857) Ephemeris
Outburst --
Period 1.4811235 d
Rise/eclipse dur. 11.02%  (3.917 h)
Remarks
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1 2017Natur.546..514G Planet: KELT-9b. Epoch time base is BJD-TDB.
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References
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1 NASA Exoplanet Archive, 2020, online data --
2 Gaudi, B.; Stassun, K.; Collins, K.; et al., 2017, A giant planet
undergoing extreme-ultraviolet irradiation by its hot massive-star host		 2017Natur.546..514G
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Images
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Supporting Documents
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Revision History
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1 Admin, VSX 2020-09-10 00:56 UTC Initial database population.

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