|
Exoplanet Name : |
HD 89744 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
10.3200 |
(Mjup) |
3281.1202 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.9170 |
(AU) |
0.9170 |
(AU Est.) |
|
Eccentricity : |
0.6770 |
|
Orbital Period(Yrs) |
0.7030 |
|
Orbital Period(Observed/Estimated) |
256.78 |
(Days Obs.) |
271.07 |
(Days Est.) |
|
Surface Gravity (G Earth) |
31.6869 |
|
Star Radiation at Atmospheric Boundary: |
9843.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
444.6 |
(K) |
|
Blackbody T 0.3(K) |
417.5 |
(K) |
|
Blackbody T 0.7(K) |
337.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
528.7 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
496.5 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 89744 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
128.6 |
|
Stellar Radius(Rsun) : |
2.1 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.4 |
(Msun Measured) |
1.6 |
(Msun Estimated) |
|
Star Age : |
2.0 |
(GY) |
|
Temperature : |
6196 |
(K) |
|
Spectral type : |
F7 V |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
2.8 |
|
Apparent Magnitude: |
5.7 |
|
Right Ascension(RA) |
155.5440 |
|
Declination (DEC) |
41.2294 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
03004-00578 |
|
Discovered by |
|
|
Discovery Paper - Authors |
"M. Mugrauer, R. Neuhaeuser, A. Seifahrt, T. Mazeh, E. Guenther" |
|
Discovery Paper - Title |
Four new wide binaries among exoplanet host stars |
|
Discovery Paper - Journal |
"A&A 440, 1051-1060 (2005) DOI: 10.1051/0004-6361:20042297" |
|
Discovery Paper - URL |
https://www.aanda.org/articles/aa/ps/2005/36/aa2297-04.ps.gz |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+89744+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2089744%20A%20b/ |
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HD 89744 b
HD 89744 b
HD 89744 b is an exoplanet orbiting the star HD 89744, located about 128.6 light-years (39.4 pc) away from Solar System. Its discovery was publicly announced on 2000.
The host star HD 89744 has apparent magnitude of 5.7, with absolute magnitude of 2.8. It is 1.4 times more massive and 2.1 times bigger compared with our Sun. The surface temperature is 6196 with its spectral types of F7 V
In this planetary system, the extrasolar planet HD 89744 b orbits around the star HD 89744 every 256.8 days with its orbital distance of 0.92 AU ( 137181247.4 km)
(Projected orbit of HD 89744 b around its host star HD 89744)
The Star HD 89744 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.780 AU ( 266253119.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 2.460 AU ( 368031390.7 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 3.749 AU ( 560798394.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 5.516 AU ( 825239404.2 km)
Radiation at Planetary Boundary of HD 89744 b : 9843.27 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 89744)
Kopparapu Recent Venus for Star HD 89744 distance : 1.798 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 89744 distance : 2.278 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 89744 distance : 2.200 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 89744 distance : 2.411 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 89744 distance : 3.983 AU
Kopparapu Outer Boundary for Early Mars for Star HD 89744 distance : 4.201 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 89744)
Original Kopparapu Recent Venus for Star HD 89744 distance : 1.817 AU
Original Kopparapu Runaway Greenhouse for Star HD 89744 distance : 2.337 AU
Original Kopparapu Moist Greenhouse for Star HD 89744 distance : 2.404 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 89744 distance : 4.054 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 89744 distance : 4.216 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 89744)
(Position in Stellar Map of star HD 89744 and its Exoplanet HD 89744 b)
(Zoomed position in Stellar Map of star HD 89744 and its Exoplanet HD 89744 b (zoom level 3))
(Synthetic Spectrum of star HD 89744*)
*Yamashiki YA et al. 2019 ApJ 881 114
MUSCLES Paper I - France et al. 2016 ApJ 820 89
MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102
