|
Exoplanet Name : |
eps Eridani b |
|
Alternate Name : |
"HD 22049, GJ 144, SAO 130564, HR 1084" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
0.7600 |
(Mjup) |
241.6329 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
3.5300 |
(AU) |
3.5300 |
(AU Est.) |
|
Eccentricity : |
0.2600 |
|
Orbital Period(Yrs) |
7.3126 |
|
Orbital Period(Observed/Estimated) |
2671.00 |
(Days Obs.) |
2658.97 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.3335 |
|
Star Radiation at Atmospheric Boundary: |
54.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
121.0 |
(K) |
|
Blackbody T 0.3(K) |
113.6 |
(K) |
|
Blackbody T 0.7(K) |
91.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
143.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
135.1 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Astrometry |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
eps Eridani |
|
Alternate Name : |
HD 22049 |
|
Star Distance(LY) : |
10.4 |
|
Stellar Radius(Rsun) : |
0.9 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
0.8 |
(Msun Estimated) |
|
Star Age : |
0.7 |
(GY) |
|
Temperature : |
5116 |
(K) |
|
Spectral type : |
K2 V |
|
UV portion[%]: |
4.6 |
|
Visible portion[%]: |
39.5 |
|
IR portion[%]: |
55.8 |
|
Metalicity : |
-0.1 |
|
Absolute Magnitude: |
6.2 |
|
Apparent Magnitude: |
3.7 |
|
Right Ascension(RA) |
53.2327 |
|
Declination (DEC) |
-9.4581 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Diolco,.; Th_venin,.; Kervella,.; Domicianoeouza,.; Coud_uoresto,.; S_gransan,.; Morel,." |
|
Discovery Paper - Title |
VLTI near-IR interferometric observations of Vega-like stars. |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=eps+Eridani+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/eps%20Eridani%20b/ |
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eps Eridani b
eps Eridani b
eps Eridani b is an exoplanet orbiting the star eps Eridani, located about 10.4 light-years ( 3.2 pc) away from Solar System. Its discovery was publicly announced on 2000.
The host star eps Eridani has apparent magnitude of 3.7, with absolute magnitude of 6.2. It is 0.8 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5116 with its spectral types of K2 V
In this planetary system, the extrasolar planet eps Eridani b orbits around the star eps Eridani every 2671.0 days with its orbital distance of 3.53 AU ( 528080483.6 km)
(Projected orbit of eps Eridani b around its host star eps Eridani)
The Star eps Eridani 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.507 AU ( 75917556.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.701 AU ( 104937902.2 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.069 AU ( 159902140.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.573 AU ( 235303004.3 km)
Radiation at Planetary Boundary of eps Eridani b : 54.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star eps Eridani)
Kopparapu Recent Venus for Star eps Eridani distance : 0.546 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star eps Eridani distance : 0.691 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star eps Eridani distance : 0.668 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star eps Eridani distance : 0.732 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star eps Eridani distance : 1.247 AU
Kopparapu Outer Boundary for Early Mars for Star eps Eridani distance : 1.315 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star eps Eridani)
Original Kopparapu Recent Venus for Star eps Eridani distance : 0.541 AU
Original Kopparapu Runaway Greenhouse for Star eps Eridani distance : 0.712 AU
Original Kopparapu Moist Greenhouse for Star eps Eridani distance : 0.716 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star eps Eridani distance : 1.268 AU
Original Kopparapu Outer Boundary for Early Mars for Star eps Eridani distance : 1.319 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star eps Eridani)
(Position in Stellar Map of star eps Eridani and its Exoplanet eps Eridani b)
(Zoomed position in Stellar Map of star eps Eridani and its Exoplanet eps Eridani b (zoom level 3))
(Synthetic Spectrum of star eps Eridani*)
*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
