|
Exoplanet Name : |
83 Leo Bc |
|
Alternate Name : |
HD 99492 c |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.2247 |
(Rjup) |
2.5190 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0563 |
(Mjup) |
17.8999 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
5.4000 |
(AU) |
5.4000 |
(AU Est.) |
|
Eccentricity : |
0.0630 |
|
Orbital Period(Yrs) |
0.2607 |
|
Orbital Period(Observed/Estimated) |
95.23 |
(Days Obs.) |
5030.86 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.8209 |
|
Star Radiation at Atmospheric Boundary: |
19.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
93.9 |
(K) |
|
Blackbody T 0.3(K) |
88.2 |
(K) |
|
Blackbody T 0.7(K) |
71.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
111.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
104.8 |
(K) |
|
Size Class: |
sub-Neptune-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 : |
83 Leo B |
|
Alternate Name : |
HD 99492 |
|
Star Distance(LY) : |
58.7 |
|
Stellar Radius(Rsun) : |
1.0 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
2316.3 |
(Msun Estimated) |
|
Star Age : |
4.0 |
(GY) |
|
Temperature : |
4740 |
(K) |
|
Spectral type : |
K2V |
|
UV portion[%]: |
2.3 |
|
Visible portion[%]: |
34.8 |
|
IR portion[%]: |
63.0 |
|
Metalicity : |
0.4 |
|
Absolute Magnitude: |
6.1 |
|
Apparent Magnitude: |
7.4 |
|
Right Ascension(RA) |
171.6917 |
|
Declination (DEC) |
3.0061 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
|
|
Open Exoplanet Database Link |
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83 Leo Bc
83 Leo Bc
83 Leo Bc is an exoplanet orbiting the star 83 Leo B, located about 58.7 light-years (18.0 pc) away from Solar System. Its discovery was publicly announced on 2010.
The host star 83 Leo B has apparent magnitude of 7.4, with absolute magnitude of 6.1. It is 0.8 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 4740 with its spectral types of K2V
In this planetary system, the extrasolar planet 83 Leo Bc orbits around the star 83 Leo B every 95.2 days with its orbital distance of 5.40 AU ( 807828501.8 km)
(Projected orbit of 83 Leo Bc around its host star 83 Leo B)
The Star 83 Leo B 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.467 AU ( 69901424.9 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.646 AU ( 96622036.7 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.984 AU ( 147230601.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.448 AU ( 216656279.8 km)
Radiation at Planetary Boundary of 83 Leo Bc : 19.56 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 83 Leo B)
Kopparapu Recent Venus for Star 83 Leo B distance : 0.511 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 83 Leo B distance : 0.647 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 83 Leo B distance : 0.625 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 83 Leo B distance : 0.687 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 83 Leo B distance : 1.186 AU
Kopparapu Outer Boundary for Early Mars for Star 83 Leo B distance : 1.251 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 83 Leo B)
Original Kopparapu Recent Venus for Star 83 Leo B distance : 0.505 AU
Original Kopparapu Runaway Greenhouse for Star 83 Leo B distance : 0.668 AU
Original Kopparapu Moist Greenhouse for Star 83 Leo B distance : 0.668 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 83 Leo B distance : 1.206 AU
Original Kopparapu Outer Boundary for Early Mars for Star 83 Leo B distance : 1.254 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 83 Leo B)
(Position in Stellar Map of star 83 Leo B and its Exoplanet 83 Leo Bc)
(Zoomed position in Stellar Map of star 83 Leo B and its Exoplanet 83 Leo Bc (zoom level 3))
(Synthetic Spectrum of star 83 Leo B*)
*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
