|
Exoplanet Name : |
Gl 378 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.2089 |
(Rjup) |
2.3414 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0410 |
(Mjup) |
13.0259 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0394 |
(AU) |
0.0394 |
(AU Est.) |
|
Eccentricity : |
0.1090 |
|
Orbital Period(Yrs) |
0.0105 |
|
Orbital Period(Observed/Estimated) |
3.82 |
(Days Obs.) |
3.82 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.3760 |
|
Star Radiation at Atmospheric Boundary: |
55988.2 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
686.5 |
(K) |
|
Blackbody T 0.3(K) |
644.7 |
(K) |
|
Blackbody T 0.7(K) |
521.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
816.4 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
766.7 |
(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 : |
Gl 378 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
48.8 |
|
Stellar Radius(Rsun) : |
0.6 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.6 |
(Msun Measured) |
0.6 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3879 |
(K) |
|
Spectral type : |
M1 |
|
UV portion[%]: |
0.5 |
|
Visible portion[%]: |
21.3 |
|
IR portion[%]: |
78.1 |
|
Metalicity : |
0.1 |
|
Absolute Magnitude: |
8.1 |
|
Apparent Magnitude: |
9.0 |
|
Right Ascension(RA) |
150.5906 |
|
Declination (DEC) |
48.0722 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Gl+378+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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Gl 378 b
Gl 378 b
Gl 378 b is an exoplanet orbiting the star Gl 378, located about 48.8 light-years (15.0 pc) away from Solar System. Its discovery was publicly announced on 2019.
The host star Gl 378 has apparent magnitude of 9.0, with absolute magnitude of 8.1. It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 3879 with its spectral types of M1
In this planetary system, the extrasolar planet Gl 378 b orbits around the star Gl 378 every 3.8 days with its orbital distance of 0.04 AU ( 5899392.0 km)
(Projected orbit of Gl 378 b around its host star Gl 378)
The Star Gl 378 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.183 AU ( 27307736.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.252 AU ( 37746427.8 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.384 AU ( 57517202.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.566 AU ( 84639083.4 km)
Radiation at Planetary Boundary of Gl 378 b : 55988.17 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Gl 378)
Kopparapu Recent Venus for Star Gl 378 distance : 0.205 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star Gl 378 distance : 0.259 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Gl 378 distance : 0.251 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star Gl 378 distance : 0.276 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star Gl 378 distance : 0.495 AU
Kopparapu Outer Boundary for Early Mars for Star Gl 378 distance : 0.523 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star Gl 378)
Original Kopparapu Recent Venus for Star Gl 378 distance : 0.203 AU
Original Kopparapu Runaway Greenhouse for Star Gl 378 distance : 0.268 AU
Original Kopparapu Moist Greenhouse for Star Gl 378 distance : 0.268 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Gl 378 distance : 0.503 AU
Original Kopparapu Outer Boundary for Early Mars for Star Gl 378 distance : 0.523 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star Gl 378)
(Position in Stellar Map of star Gl 378 and its Exoplanet Gl 378 b)
(Zoomed position in Stellar Map of star Gl 378 and its Exoplanet Gl 378 b (zoom level 3))
(Synthetic Spectrum of star Gl 378*)
*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
