|
Exoplanet Name : |
GJ 3473 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1128 |
(Rjup) |
1.2640 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0059 |
(Mjup) |
1.8599 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0159 |
(AU) |
0.0159 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0033 |
|
Orbital Period(Observed/Estimated) |
1.20 |
(Days Obs.) |
1.22 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.1641 |
|
Star Radiation at Atmospheric Boundary: |
80757.5 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
752.4 |
(K) |
|
Blackbody T 0.3(K) |
706.6 |
(K) |
|
Blackbody T 0.7(K) |
571.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
894.7 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
840.3 |
(K) |
|
Size Class: |
super-Earth-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
TOI-488 |
|
Alternate Name : |
GJ 3473 |
|
Star Distance(LY) : |
89.3 |
|
Stellar Radius(Rsun) : |
0.4 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.4 |
(Msun Measured) |
0.4 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3347 |
(K) |
|
Spectral type : |
M4V |
|
UV portion[%]: |
0.2 |
|
Visible portion[%]: |
11.1 |
|
IR portion[%]: |
88.6 |
|
Metalicity : |
0.1 |
|
Absolute Magnitude: |
10.8 |
|
Apparent Magnitude: |
13.0 |
|
Right Ascension(RA) |
120.5953 |
|
Declination (DEC) |
3.3389 |
|
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=GJ+3473+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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GJ 3473 b
GJ 3473 b
GJ 3473 b is an exoplanet orbiting the star TOI-488, located about 89.3 light-years (27.4 pc) away from Solar System. Its discovery was publicly announced on 2020.
The host star TOI-488 has apparent magnitude of 13.0, with absolute magnitude of 10.8. It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3347 with its spectral types of M4V
In this planetary system, the extrasolar planet GJ 3473 b orbits around the star TOI-488 every 1.2 days with its orbital distance of 0.02 AU ( 2377110.2 km)
(Projected orbit of GJ 3473 b around its host star TOI-488)
The Star TOI-488 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.088 AU ( 13215114.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.122 AU ( 18266741.4 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.186 AU ( 27834471.4 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.274 AU ( 40959644.0 km)
Radiation at Planetary Boundary of GJ 3473 b : 80757.46 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-488)
Kopparapu Recent Venus for Star TOI-488 distance : 0.100 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-488 distance : 0.127 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-488 distance : 0.122 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-488 distance : 0.134 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-488 distance : 0.248 AU
Kopparapu Outer Boundary for Early Mars for Star TOI-488 distance : 0.262 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-488)
Original Kopparapu Recent Venus for Star TOI-488 distance : 0.099 AU
Original Kopparapu Runaway Greenhouse for Star TOI-488 distance : 0.131 AU
Original Kopparapu Moist Greenhouse for Star TOI-488 distance : 0.131 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-488 distance : 0.252 AU
Original Kopparapu Outer Boundary for Early Mars for Star TOI-488 distance : 0.262 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-488)
(Position in Stellar Map of star TOI-488 and its Exoplanet GJ 3473 b)
(Zoomed position in Stellar Map of star TOI-488 and its Exoplanet GJ 3473 b (zoom level 3))
(Synthetic Spectrum of star TOI-488*)
*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
