|
Exoplanet Name : |
alf Cen B b |
|
Alternate Name : |
|
|
Radius (Rjup / Re): |
0.0928 |
(Rjup) |
1.0401 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0036 |
(Mjup) |
1.1446 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0400 |
(AU) |
0.0400 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0089 |
|
Orbital Period(Observed/Estimated) |
3.24 |
(Days Obs.) |
3.02 |
(Days Est.) |
|
Star Radiation at Atmospheric Boundary: |
422077.1 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1137.6 |
(K) |
|
Blackbody T 0.3(K) |
1068.3 |
(K) |
|
Blackbody T 0.7(K) |
864.4 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1352.8 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1270.5 |
(K) |
|
Size Class: |
Earth-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 : |
alpha Cen B |
|
Alternate Name : |
|
|
Star Distance(LY) : |
4.2 |
|
Stellar Radius(Rsun) : |
0.9 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.9 |
(Msun Measured) |
0.8 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5214 |
(K) |
|
Spectral type : |
K1V |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
5.8 |
|
Apparent Magnitude: |
1.3 |
|
Right Ascension(RA) |
219.8961 |
|
Declination (DEC) |
-60.8375 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
0 |
|
Discovered by |
|
|
Discovery Paper - Authors |
0 |
|
Discovery Paper - Title |
0 |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=alf+Cen+B+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
0 |
 |
 |
 |
 |
/
alf Cen B b
alf Cen B b
alf Cen B b is an exoplanet orbiting the star alpha Cen B, located about 4.2 light-years ( 1.3 pc) away from Solar System. Its discovery was publicly announced on 2012.
The host star alpha Cen B has apparent magnitude of 1.3, with absolute magnitude of 5.8. It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5214 with its spectral types of K1V
In this planetary system, the extrasolar planet alf Cen B b orbits around the star alpha Cen B every 3.2 days with its orbital distance of 0.04 AU ( 5983914.8 km)
(Projected orbit of alf Cen B b around its host star alpha Cen B)
The Star alpha Cen B 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.508 AU ( 76052167.8 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.703 AU ( 105123970.7 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.071 AU ( 160185667.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.576 AU ( 235720227.0 km)
Radiation at Planetary Boundary of alf Cen B b : 422077.11 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star alpha Cen B)
Kopparapu Recent Venus for Star alpha Cen B distance : 0.544 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star alpha Cen B distance : 0.689 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star alpha Cen B distance : 0.665 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star alpha Cen B distance : 0.730 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star alpha Cen B distance : 1.238 AU
Kopparapu Outer Boundary for Early Mars for Star alpha Cen B distance : 1.306 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star alpha Cen B)
Original Kopparapu Recent Venus for Star alpha Cen B distance : 0.540 AU
Original Kopparapu Runaway Greenhouse for Star alpha Cen B distance : 0.709 AU
Original Kopparapu Moist Greenhouse for Star alpha Cen B distance : 0.714 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star alpha Cen B distance : 1.259 AU
Original Kopparapu Outer Boundary for Early Mars for Star alpha Cen B distance : 1.310 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star alpha Cen B)
(Position in Stellar Map of star alpha Cen B and its Exoplanet alf Cen B b)
(Zoomed position in Stellar Map of star alpha Cen B and its Exoplanet alf Cen B b (zoom level 3))
