|
Exoplanet Name : |
eps Tau b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
7.3400 |
(Mjup) |
2333.6649 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.9000 |
(AU) |
1.9000 |
(AU Est.) |
|
Eccentricity : |
0.1510 |
|
Orbital Period(Yrs) |
1.6287 |
|
Orbital Period(Observed/Estimated) |
594.90 |
(Days Obs.) |
582.16 |
(Days Est.) |
|
Surface Gravity (G Earth) |
22.5370 |
|
Star Radiation at Atmospheric Boundary: |
36785.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
618.1 |
(K) |
|
Blackbody T 0.3(K) |
580.5 |
(K) |
|
Blackbody T 0.7(K) |
469.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
735.1 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
690.3 |
(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 : |
eps Tau |
|
Alternate Name : |
"74 Tau, HD 28305" |
|
Star Distance(LY) : |
146.7 |
|
Stellar Radius(Rsun) : |
13.7 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
2.7 |
(Msun Measured) |
2.6 |
(Msun Estimated) |
|
Star Age : |
0.6 |
(GY) |
|
Temperature : |
4901 |
(K) |
|
Spectral type : |
K0 III |
|
UV portion[%]: |
2.8 |
|
Visible portion[%]: |
36.1 |
|
IR portion[%]: |
61.1 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
0.3 |
|
Apparent Magnitude: |
3.5 |
|
Right Ascension(RA) |
67.1542 |
|
Declination (DEC) |
19.1806 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
Bunei Sato et al. |
|
Discovery Paper - Authors |
"Sato,un'ei; Izumiura,ideyuki; Toyota,ri; Kambe,iji; Takeda,oichi; Masuda,eiji; Omiya,asashi; Murata,aisuke; Itoh,oichi; Ando,iroyasu; Yoshida,ichitoshi; Ikoma,asahiro; Kokubo,iichiro; Ida,higeru" |
|
Discovery Paper - Title |
A Planetary Companion to the Hyades Giant _ Tauri |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=eps+Tau+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/eps%20Tau%20b/ |
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eps Tau b
eps Tau b
eps Tau b is an exoplanet orbiting the star eps Tau, located about 146.7 light-years (45.0 pc) away from Solar System. Its discovery was publicly announced on 2007.
The host star eps Tau has apparent magnitude of 3.5, with absolute magnitude of 0.3. It is 2.7 times more massive and 13.7 times bigger compared with our Sun. The surface temperature is 4901 with its spectral types of K0 III
In this planetary system, the extrasolar planet eps Tau b orbits around the star eps Tau every 594.9 days with its orbital distance of 1.90 AU ( 284235954.3 km)
(Projected orbit of eps Tau b around its host star eps Tau)
The Star eps Tau 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 7.129 AU ( 1066468628.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 9.854 AU ( 1474138346.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 15.015 AU ( 2246260613.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 22.096 AU ( 3305470894.9 km)
Radiation at Planetary Boundary of eps Tau b : 36785.58 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star eps Tau)
Kopparapu Recent Venus for Star eps Tau distance : 7.748 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star eps Tau distance : 9.809 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star eps Tau distance : 9.474 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star eps Tau distance : 10.399 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star eps Tau distance : 17.850 AU
Kopparapu Outer Boundary for Early Mars for Star eps Tau distance : 18.829 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star eps Tau)
Original Kopparapu Recent Venus for Star eps Tau distance : 7.659 AU
Original Kopparapu Runaway Greenhouse for Star eps Tau distance : 10.112 AU
Original Kopparapu Moist Greenhouse for Star eps Tau distance : 10.134 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star eps Tau distance : 18.148 AU
Original Kopparapu Outer Boundary for Early Mars for Star eps Tau distance : 18.873 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star eps Tau)
(Position in Stellar Map of star eps Tau and its Exoplanet eps Tau b)
(Zoomed position in Stellar Map of star eps Tau and its Exoplanet eps Tau b (zoom level 3))
(Synthetic Spectrum of star eps Tau*)
*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
