|
Exoplanet Name : |
nu2 CMa b |
|
Alternate Name : |
"7 CMa b, HD 47205 b" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
1.8950 |
(Mjup) |
602.4925 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.7610 |
(AU) |
1.7610 |
(AU Est.) |
|
Eccentricity : |
0.0550 |
|
Orbital Period(Yrs) |
2.0175 |
|
Orbital Period(Observed/Estimated) |
736.90 |
(Days Obs.) |
692.32 |
(Days Est.) |
|
Surface Gravity (G Earth) |
5.8185 |
|
Star Radiation at Atmospheric Boundary: |
1103.1 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
257.2 |
(K) |
|
Blackbody T 0.3(K) |
241.6 |
(K) |
|
Blackbody T 0.7(K) |
195.4 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
305.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
287.3 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Spectrum |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
nu2 CMa |
|
Alternate Name : |
7 CMa |
|
Star Distance(LY) : |
64.4 |
|
Stellar Radius(Rsun) : |
2.3 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.5 |
(Msun Measured) |
1.3 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4792 |
(K) |
|
Spectral type : |
K1 III |
|
UV portion[%]: |
2.4 |
|
Visible portion[%]: |
35.4 |
|
IR portion[%]: |
62.2 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
2.5 |
|
Apparent Magnitude: |
4.0 |
|
Right Ascension(RA) |
99.1708 |
|
Declination (DEC) |
-19.2558 |
|
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 |
|
 |
 |
 |
 |
/
nu2 CMa b
nu2 CMa b
nu2 CMa b is an exoplanet orbiting the star nu2 CMa, located about 64.4 light-years (19.8 pc) away from Solar System. Its discovery was publicly announced on 2011.
The host star nu2 CMa has apparent magnitude of 4.0, with absolute magnitude of 2.5. It is 1.5 times more massive and 2.3 times bigger compared with our Sun. The surface temperature is 4792 with its spectral types of K1 III
In this planetary system, the extrasolar planet nu2 CMa b orbits around the star nu2 CMa every 736.9 days with its orbital distance of 1.76 AU ( 263441850.3 km)
(Projected orbit of nu2 CMa b around its host star nu2 CMa)
The Star nu2 CMa 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.144 AU ( 171166814.1 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.582 AU ( 236597268.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.410 AU ( 360521878.0 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 3.546 AU ( 530523737.0 km)
Radiation at Planetary Boundary of nu2 CMa b : 1103.09 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star nu2 CMa)
Kopparapu Recent Venus for Star nu2 CMa distance : 1.249 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star nu2 CMa distance : 1.582 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star nu2 CMa distance : 1.528 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star nu2 CMa distance : 1.677 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star nu2 CMa distance : 2.892 AU
Kopparapu Outer Boundary for Early Mars for Star nu2 CMa distance : 3.050 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star nu2 CMa)
Original Kopparapu Recent Venus for Star nu2 CMa distance : 1.234 AU
Original Kopparapu Runaway Greenhouse for Star nu2 CMa distance : 1.631 AU
Original Kopparapu Moist Greenhouse for Star nu2 CMa distance : 1.633 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star nu2 CMa distance : 2.940 AU
Original Kopparapu Outer Boundary for Early Mars for Star nu2 CMa distance : 3.057 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star nu2 CMa)
(Position in Stellar Map of star nu2 CMa and its Exoplanet nu2 CMa b)
(Zoomed position in Stellar Map of star nu2 CMa and its Exoplanet nu2 CMa b (zoom level 3))
(Synthetic Spectrum of star nu2 CMa*)
*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
