Planet HD 195689 b
| Name | HD 195689 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2017 | ||
| Mass | — | ||
| Mass*sin(i) | — | ||
| Semi-Major Axis | 0.03462 ( -0.0093 +0.011 ) AU |  |
|
| Orbital Period | 1.4811235 (± 1.1e-06) day | |
+ |
| Eccentricity | — | ||
| ω | — | ||
| Tperi | — | ||
| Radius | 1.888 ( -0.052 +0.062 ) RJ | |
|
| Inclination | 86.79 (± 0.25) deg | |
|
| Update | 2018-12-10 | ||
| Detection Method | Primary Transit | ||
| Mass Detection Method | — | ||
| Radius Detection Method | Primary Transit | ||
| Primary transit | — | ||
| Secondary transit | 2457095.18572 (± 0.00014) JD | |
|
| λ | — | ||
| Impact Parameter b | — | ||
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | — | ||
| Calculated temperature | 4600.0 (± 150.0) K | ||
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | KELT-9 b |
Star
HD 195689| Name | HD 195689 | ||
| Distance | — | ||
| Spectral type | A0 | ||
| Apparent magnitude V | 7.56 | ||
| Mass | — | ||
| Age | — | ||
| Effective temperature | 10170.0 K | |
|
| Radius | — | ||
| Metallicity [Fe/H] | — | ||
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 20:31:26.4 | ||
| Dec2000 | +39:56:20 | ||
| Alternate Names | KELT-9 | ||
| Planetary system | 1 planet |
Atmospheric parameters
Temperatures
| Data Source | Type | Result Value | Result Figure | Notes | Reference |
| Measurements | Day Average | 4050.0 | 2017 - GAUDI B. |
Molecules
| Molecule | Data Source | Type | Result Value | Result Figure | Notes | Reference |
| Fe | Measurements | Detected | 2018 - HOEIJMAKERS | |||
| Fe+ | Measurements | Detected | 2018 - HOEIJMAKERS | |||
| Ti+ | Measurements | Detected | 2018 - HOEIJMAKERS | |||
Observability Predictor 
Remarks
Scott Gaudi et al. 2017 measure a day side temperature of Kelt-9 b of 4600KRelated publications
A ground-based NUV secondary eclipse observation of KELT-9b
2018
HOOTON M., WATSON Ch., de MOOIJ E., GIBSON N. & KITZMANN D.
ApJ. Letters, 869, L25
paper arxiv
The Effects of Barycentric and Asymmetric Transverse Velocities on Eclipse and Transit Times
2018
CONROY K., PRSA A., HOVART M. & STASSUN K.
ApJ, accepted
arxiv
Stellar photospheric abundances as a probe of discs and planets
2018
JERMYN A. & KAMA M.
MNRAS, 476, 4418
paper arxiv
An extended hydrogen envelope of the extremely hot giant exoplanet KELT-9b
2018
YAN, F., HENNING, T.
Nature Astron., accepted
arxiv
paper
ADS
Atomic iron and titanium in the atmosphere of the exoplanet KELT-9b
2018
HOEIJMAKERS, H., EHRENREICH, D., HENG, K., KITZMANN, D. , GRIMM, S. et al.
Nature, 560
paper
arxiv
ADS
The Peculiar Atmospheric Chemistry of KELT-9b
2018
KITZMANN D., HENG K., RIMMER P., HOEIJMAKERS H., TSAI Sh.-M. et al.
ApJ, 863, 183
arxiv
paper
Atmospheric dynamics and the variable transit of KELT-9 b
2018
WILSON CAULEY P., SHKOLNIK E., ILYIN I., STRASSMEIER K., REDFIELD S. & JENSEN A.
Astron. J., submitted
arxiv
Extreme-ultraviolet Radiation from A-stars: Implications for Ultra-hot Jupiters
2018
FOSSATI L., KOSKINEN T., LOTHRINGER J., FRANCE K. YOUNG M. & SREEJITH A.
ApJ. Letters, 868, L30
paper
A giant planet undergoing extreme-ultraviolet irradiation by its hot massive-star host
2017
GAUDI B., STASSUN K., COLLINS K., BEATTY Th., ZHOU G. et al.
Nature, 546, 514
paper
