|
Exoplanet Name : |
HD 42012 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
1.6000 |
(Mjup) |
508.7008 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.6700 |
(AU) |
1.6700 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
2.3476 |
|
Orbital Period(Observed/Estimated) |
857.50 |
(Days Obs.) |
865.22 |
(Days Est.) |
|
Surface Gravity (G Earth) |
4.9127 |
|
Star Radiation at Atmospheric Boundary: |
252.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
177.9 |
(K) |
|
Blackbody T 0.3(K) |
167.1 |
(K) |
|
Blackbody T 0.7(K) |
135.2 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
211.5 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
198.7 |
(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 42012 |
|
Alternate Name : |
2MASS J06095646+3408076 |
|
Star Distance(LY) : |
121.0 |
|
Stellar Radius(Rsun) : |
0.8 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
0.8 |
(Msun Estimated) |
|
Star Age : |
4.1 |
(GY) |
|
Temperature : |
5405 |
(K) |
|
Spectral type : |
K0 |
|
UV portion[%]: |
6.4 |
|
Visible portion[%]: |
42.5 |
|
IR portion[%]: |
51.1 |
|
Metalicity : |
-0.1 |
|
Absolute Magnitude: |
5.6 |
|
Apparent Magnitude: |
8.4 |
|
Right Ascension(RA) |
92.4853 |
|
Declination (DEC) |
34.1353 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+42012&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2042012%20b/ |
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HD 42012 b
HD 42012 b
HD 42012 b is an exoplanet orbiting the star HD 42012, located about 121.0 light-years (37.1 pc) away from Solar System. Its discovery was publicly announced on 2017.
The host star HD 42012 has apparent magnitude of 8.4, with absolute magnitude of 5.6. It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5405 with its spectral types of K0
In this planetary system, the extrasolar planet HD 42012 b orbits around the star HD 42012 every 857.5 days with its orbital distance of 1.67 AU ( 249828444.1 km)
(Projected orbit of HD 42012 b around its host star HD 42012)
The Star HD 42012 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.519 AU ( 77636037.6 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.717 AU ( 107313292.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.093 AU ( 163521709.6 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.609 AU ( 240629359.1 km)
Radiation at Planetary Boundary of HD 42012 b : 252.34 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 42012)
Kopparapu Recent Venus for Star HD 42012 distance : 0.550 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 42012 distance : 0.696 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 42012 distance : 0.672 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 42012 distance : 0.737 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 42012 distance : 1.243 AU
Kopparapu Outer Boundary for Early Mars for Star HD 42012 distance : 1.311 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 42012)
Original Kopparapu Recent Venus for Star HD 42012 distance : 0.547 AU
Original Kopparapu Runaway Greenhouse for Star HD 42012 distance : 0.716 AU
Original Kopparapu Moist Greenhouse for Star HD 42012 distance : 0.723 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 42012 distance : 1.264 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 42012 distance : 1.315 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 42012)
(Position in Stellar Map of star HD 42012 and its Exoplanet HD 42012 b)
(Zoomed position in Stellar Map of star HD 42012 and its Exoplanet HD 42012 b (zoom level 3))
(Synthetic Spectrum of star HD 42012*)
*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
