|
Exoplanet Name : |
HD 40979 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
4.0100 |
(Mjup) |
1274.9314 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.8460 |
(AU) |
0.8460 |
(AU Est.) |
|
Eccentricity : |
0.2520 |
|
Orbital Period(Yrs) |
0.7230 |
|
Orbital Period(Observed/Estimated) |
264.10 |
(Days Obs.) |
270.99 |
(Days Est.) |
|
Surface Gravity (G Earth) |
12.3124 |
|
Star Radiation at Atmospheric Boundary: |
3718.8 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
348.5 |
(K) |
|
Blackbody T 0.3(K) |
327.3 |
(K) |
|
Blackbody T 0.7(K) |
264.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
414.5 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
389.2 |
(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 40979 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
110.7 |
|
Stellar Radius(Rsun) : |
1.2 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.1 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
1.5 |
(GY) |
|
Temperature : |
6205 |
(K) |
|
Spectral type : |
F8 V |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
4.1 |
|
Apparent Magnitude: |
6.7 |
|
Right Ascension(RA) |
91.1248 |
|
Declination (DEC) |
44.2603 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
02937-01747 |
|
Discovered by |
|
|
Discovery Paper - Authors |
"Mugrauer,.; Neuh_user,.; Mazeh,." |
|
Discovery Paper - Title |
"The multiplicity of exoplanet host stars. Spectroscopic confirmation of the companions GJ 3021 B and HD 27442 B, one new planet host triple-star system, and global statistics" |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+40979+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2040979%20A%20b/ |
 |
 |
 |
 |
/
HD 40979 b
HD 40979 b
HD 40979 b is an exoplanet orbiting the star HD 40979, located about 110.7 light-years (33.9 pc) away from Solar System. Its discovery was publicly announced on 2002.
The host star HD 40979 has apparent magnitude of 6.7, with absolute magnitude of 4.1. It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6205 with its spectral types of F8 V
In this planetary system, the extrasolar planet HD 40979 b orbits around the star HD 40979 every 264.1 days with its orbital distance of 0.85 AU ( 126559798.6 km)
(Projected orbit of HD 40979 b around its host star HD 40979)
The Star HD 40979 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.009 AU ( 150982653.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.395 AU ( 208697483.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.126 AU ( 318008780.9 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 3.128 AU ( 467963852.1 km)
Radiation at Planetary Boundary of HD 40979 b : 3718.79 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 40979)
Kopparapu Recent Venus for Star HD 40979 distance : 1.019 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 40979 distance : 1.291 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 40979 distance : 1.247 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 40979 distance : 1.366 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 40979 distance : 2.257 AU
Kopparapu Outer Boundary for Early Mars for Star HD 40979 distance : 2.381 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 40979)
Original Kopparapu Recent Venus for Star HD 40979 distance : 1.030 AU
Original Kopparapu Runaway Greenhouse for Star HD 40979 distance : 1.324 AU
Original Kopparapu Moist Greenhouse for Star HD 40979 distance : 1.363 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 40979 distance : 2.298 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 40979 distance : 2.389 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 40979)
(Position in Stellar Map of star HD 40979 and its Exoplanet HD 40979 b)
(Zoomed position in Stellar Map of star HD 40979 and its Exoplanet HD 40979 b (zoom level 3))
(Synthetic Spectrum of star HD 40979*)
*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
