Exoplanet Name : |
HIP 91258 b |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
1.0680 |
(Mjup) |
339.5578 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
0.0570 |
(AU) |
0.0570 |
(AU Est.) |
Eccentricity : |
0.0240 |
Orbital Period(Yrs) |
0.0138 |
Orbital Period(Observed/Estimated) |
5.05 |
(Days Obs.) |
5.10 |
(Days Est.) |
Surface Gravity (G Earth) |
3.2792 |
Star Radiation at Atmospheric Boundary: |
297204.5 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
1042.1 |
(K) |
Blackbody T 0.3(K) |
978.6 |
(K) |
Blackbody T 0.7(K) |
791.8 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
1239.3 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
1163.8 |
(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 : |
HIP 91258 |
Alternate Name : |
|
Star Distance(LY) : |
149.4 |
Stellar Radius(Rsun) : |
0.9 |
(Rsun Estimated) |
Stellar Mass(Msun) : |
0.9 |
(Msun Measured) |
1.0 |
(Msun Estimated) |
Star Age : |
2.4 |
(GY) |
Temperature : |
5519 |
(K) |
Spectral type : |
G5V |
UV portion[%]: |
7.0 |
Visible portion[%]: |
43.4 |
IR portion[%]: |
49.7 |
Metalicity : |
0.2 |
Absolute Magnitude: |
5.3 |
Apparent Magnitude: |
8.7 |
Right Ascension(RA) |
279.2215 |
Declination (DEC) |
61.7025 |
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
Discovered by |
|
Discovery Paper - Authors |
"C. Moutou, G. Hebrard, F.Bouchy, L. Arnold, N.C. Santos, N. Astudillo-Defru, I. Boisse, X. Bonfils, S. Borgniet, X. Delfosse, R.F. Diaz, D. Ehrenreich, T. Forveille, J. Gregorio, O. Labrevoir, A.M. Lagrange, G. Montagnier, M. Montalto, F. Pepe, J. Sahlmann, A. Santerne, D. Segransan, S. Udry, M. Vanhuysse" |
Discovery Paper - Title |
The SOPHIE search for northern extrasolar planets: VI. Three new hot Jupiters in multi-planet extrasolar systems |
Discovery Paper - Journal |
0 |
Discovery Paper - URL |
0 |
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP+91258+&submit=SIMBAD+search |
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HIP%2091258%20b/ |
![](HIP_91258_b_CSun.png) |
![](HIP_91258_b_CJup.png) |
![](HIP_91258_b_CNep.png) |
![](HIP_91258_b_CEar.png) |
/
HIP 91258 b
HIP 91258 b
HIP 91258 b is an exoplanet orbiting the star HIP 91258, located about 149.4 light-years (45.8 pc) away from Solar System. Its discovery was publicly announced on 2013.
The host star HIP 91258 has apparent magnitude of 8.7, 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 5519 with its spectral types of G5V
In this planetary system, the extrasolar planet HIP 91258 b orbits around the star HIP 91258 every 5.1 days with its orbital distance of 0.06 AU ( 8527078.6 km)
(Projected orbit of HIP 91258 b around its host star HIP 91258)
![](HIP_91258_b_Orb.png)
The Star HIP 91258 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.608 AU ( 90940688.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.840 AU ( 125703796.5 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.280 AU ( 191544767.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.884 AU ( 281866516.7 km)
Radiation at Planetary Boundary of HIP 91258 b : 297204.48 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HIP 91258)
![](HIP_91258_b_OrbH.png)
Kopparapu Recent Venus for Star HIP 91258 distance : 0.640 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HIP 91258 distance : 0.810 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HIP 91258 distance : 0.782 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HIP 91258 distance : 0.858 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 91258 distance : 1.441 AU
Kopparapu Outer Boundary for Early Mars for Star HIP 91258 distance : 1.520 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HIP 91258)
![](HIP_91258_b_OrbK.png)
Original Kopparapu Recent Venus for Star HIP 91258 distance : 0.638 AU
Original Kopparapu Runaway Greenhouse for Star HIP 91258 distance : 0.833 AU
Original Kopparapu Moist Greenhouse for Star HIP 91258 distance : 0.844 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 91258 distance : 1.466 AU
Original Kopparapu Outer Boundary for Early Mars for Star HIP 91258 distance : 1.525 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HIP 91258)
![](HIP_91258_b_OrbKO.png)
(Position in Stellar Map of star HIP 91258 and its Exoplanet HIP 91258 b)
![](HIP_91258_b_STZ0.png)
(Zoomed position in Stellar Map of star HIP 91258 and its Exoplanet HIP 91258 b (zoom level 3))
![](HIP_91258_b_STZ3.png)
(Synthetic Spectrum of star HIP 91258*)
![](HIP_91258_b_Spc.png)
*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