|
Exoplanet Name : |
HD 77338 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
0.5000 |
(Mjup) |
158.9690 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0614 |
(AU) |
0.0614 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0158 |
|
Orbital Period(Observed/Estimated) |
5.76 |
(Days Obs.) |
5.76 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.5352 |
|
Star Radiation at Atmospheric Boundary: |
209474.2 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
954.8 |
(K) |
|
Blackbody T 0.3(K) |
896.7 |
(K) |
|
Blackbody T 0.7(K) |
725.5 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1135.5 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1066.3 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
|
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 77338 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
149.3 |
|
Stellar Radius(Rsun) : |
0.9 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.9 |
(Msun Measured) |
0.9 |
(Msun Estimated) |
|
Star Age : |
4.0 |
(GY) |
|
Temperature : |
5370 |
(K) |
|
Spectral type : |
K0IV |
|
UV portion[%]: |
6.2 |
|
Visible portion[%]: |
42.1 |
|
IR portion[%]: |
51.6 |
|
Metalicity : |
0.3 |
|
Absolute Magnitude: |
5.3 |
|
Apparent Magnitude: |
8.6 |
|
Right Ascension(RA) |
135.3021 |
|
Declination (DEC) |
-25.5269 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
0 |
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+77338+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2077338%20b/ |
 |
 |
 |
 |
/
HD 77338 b
HD 77338 b
HD 77338 b is an exoplanet orbiting the star HD 77338, located about 149.3 light-years (45.8 pc) away from Solar System. Its discovery was publicly announced on 2012.
The host star HD 77338 has apparent magnitude of 8.6, with absolute magnitude of 5.3. It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5370 with its spectral types of K0IV
In this planetary system, the extrasolar planet HD 77338 b orbits around the star HD 77338 every 5.8 days with its orbital distance of 0.06 AU ( 9185309.3 km)
(Projected orbit of HD 77338 b around its host star HD 77338)
The Star HD 77338 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.550 AU ( 82241184.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.760 AU ( 113678809.0 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.158 AU ( 173221347.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.704 AU ( 254902801.7 km)
Radiation at Planetary Boundary of HD 77338 b : 209474.21 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 77338)
Kopparapu Recent Venus for Star HD 77338 distance : 0.583 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 77338 distance : 0.739 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 77338 distance : 0.714 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 77338 distance : 0.783 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 77338 distance : 1.321 AU
Kopparapu Outer Boundary for Early Mars for Star HD 77338 distance : 1.393 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 77338)
Original Kopparapu Recent Venus for Star HD 77338 distance : 0.580 AU
Original Kopparapu Runaway Greenhouse for Star HD 77338 distance : 0.760 AU
Original Kopparapu Moist Greenhouse for Star HD 77338 distance : 0.767 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 77338 distance : 1.343 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 77338 distance : 1.397 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 77338)
(Position in Stellar Map of star HD 77338 and its Exoplanet HD 77338 b)
(Zoomed position in Stellar Map of star HD 77338 and its Exoplanet HD 77338 b (zoom level 3))
(Synthetic Spectrum of star HD 77338*)
*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
