Planet HAT-P-18 b
| Name | HAT-P-18 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2010 | ||
| Mass | 0.183 ( -0.032 +0.034 ) MJ |  |
|
| Mass*sin(i) | — | ||
| Semi-Major Axis | 0.0559 (± 0.0007) AU | |
|
| Orbital Period | 5.508029 (± 4.2e-06) day | |
+ |
| Eccentricity | 0.106 ( -0.084 +0.15 ) | |
|
| ω | 120.0 (± 56.0) deg | |
|
| Tperi | — | ||
| Radius | 0.947 ( -0.044 +0.044 ) RJ | |
|
| Inclination | 88.79 (± 0.21) deg | |
+ |
| Update | 2015-11-12 | ||
| Detection Method | Primary Transit | ||
| Mass Detection Method | — | ||
| Radius Detection Method | — | ||
| Primary transit | 2454715.02254 (± 0.00039) JD | |
+ |
| Secondary transit | 2454717.65 (± 0.13) JD | ||
| λ | 132.0 (± 15.0) deg | |
|
| Impact Parameter b | 0.324 (± 0.057) | ||
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | — | ||
| Calculated temperature | 841.0 K | |
+ |
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | 2.734 | |
|
| Alternate Names | HAT-18b |
Star
HAT-P-18| Name | HAT-P-18 | ||
| Distance | 166.0 (± 9.0) pc | |
|
| Spectral type | K | ||
| Apparent magnitude V | 12.76 | ||
| Mass | 0.77 (± 0.031) MSun | |
|
| Age | 12.4 ( -6.4 +6.4 ) Gyr | |
|
| Effective temperature | 4870.0 (± 50.0) K | |
|
| Radius | 0.717 (± 0.026) RSun | |
|
| Metallicity [Fe/H] | 0.1 (± 8.0) | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 17:05:24.0 | ||
| Dec2000 | +33:00:45 | ||
| Alternate Names | |||
| Planetary system | 1 planet |
Remarks
Alias GSC 2594-00646Alias 2MASS 17052315+3300450
More data
- Simbad
- Most recent references (ADS)
Related publications
Rayleigh scattering in the transmission spectrum of HAT-P-18b
2017
KIRK J., WHEATLEY P., LOUDEN T., DOYLE A., SKILLEN I. et al.
MNRAS, 468, 3907
paper arxiv ADS
Ground-based transit observations of the HAT-P-18, HAT-P-19, HAT-P-27/WASP-40 and WASP-21 systems
2015
SEELIGER M., KITZE M., EMMANN R., RICHTER S., OHLERT J. et al.
MNRAS, submitted
arxiv
Friends of Hot Jupiters III: An Infrared Spectroscopic Search for Low-Mass Stellar Companions
2015
PISKORZ D., KNUTSON H., NGO H., MUIRHEAD Ph., BATYGIN K. et al.
ApJ, 814, 148
paper arxiv ADS
Friends of Hot Jupiters II: No Correspondence Between Hot-Jupiter Spin-Orbit Misalignment and the Incidence of Directly Imaged Stellar Companions
2015
NGO R., KNUTSON H., HINKLEY S., CREPP J., BECHLER E. et al.
ApJ, 800, 138
paper arxiv ADS
The GAPS Programme with HARPS-N at TNG. III: The retrograde orbit of HAT-P-18b
2014
ESPOSITO M., COVINO E., MANCINI L., HARUTYUNYAN A., SOUTHWORTH J. & 20 co-authors
Astron. & Astrophys., 564, L13
paper arxiv ADS
Understanding the Mass-Radius Relation for Sub-Neptunes: Radius as a Proxy for Composition
2014
LOPEZ E. & FORTNEY J.
ApJ, 792, 1
paper arxiv ADS
Friends of Hot Jupiters I: A Radial Velocity Search for Massive, Long-Period Companions to Close-In Gas Giant Planets
2014
KNUTSON H., FULTON B., MONTET B., KAO M., NGO H. & 8 additional authors
ApJ, 785, 126
paper arxiv ADS
The Mass of KOI-94d and a Relation for Planet Radius, Mass, and Incident Flux
2013
WEISS L., MARCY G., ROWE J., HOWARD A.,
ISAACSON H. & 13 additional authors
ApJ, 768, 14
paper arxiv ADS
The coronal X-ray–age relation and its implications for the evaporation of exoplanets
2012
JACKSON A., DAVIS T. & WHEATLEY P.
MNRAS, 422, 2024
paper arxiv ADS
Constraining Tidal Dissipation in Stars from The Destruction Rates of Exoplanets
2012
PENEV K., JACKSON B., SPADA F. & THOM N.
ApJ., 751, 96
paper arxiv ADS
Factors Affecting the Radii of Close-in Transiting Exoplanets
2012
ENOCH B., COLLIER CAMERON A. & HORNE K.
Astron. & Astrophys., 540, A99
paper arxiv ADS
HAT-P-18b and HAT-P-19b: Two Low-Density Saturn-Mass Planets Transiting Metal-Rich K Stars
2011
HARTMAN J., BAKOS G., SATO B., TORRES G., NOYES R. & 18 co-authors
ApJ., 726, 52
paper arxiv ADS
Quantization of Planetary Systems and its Dependency on Stellar Rotation
2011
ZOGHBI J.-P.
Publ. Astron. Soc. Australia, 28, 177
paper arxiv ADS
The Exoplanet Handbook
2011
Michael Perryman
Content
Content and Chapter 5
Mass-loss rates for transiting exoplanets
2011
EHRENREICH D. & DESERT J.-M.
Astron. & Astrophys., 529, A136
paper arxiv ADS
The Heavy Element Masses of Extrasolar Giant Planets, Revealed
2011
MILLER N. & FORTNEY J.
ApJ. Letters, 736, L29
paper arxiv ADS
