|
Exoplanet Name : |
Gaia-2 b |
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Alternate Name : |
"Gaia EDR3 1107980654748582144 b, TIC 147797743" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
1.3270 |
(Rjup) |
14.8743 |
(Rearth) |
|
Mass (Mjup / Me): |
0.7730 |
(Mjup) |
245.7661 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0467 |
(AU) |
0.0467 |
(AU Est.) |
|
Eccentricity : |
0.3460 |
|
Orbital Period(Yrs) |
0.0101 |
|
Orbital Period(Observed/Estimated) |
3.69 |
(Days Obs.) |
3.69 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.1108 |
|
Star Radiation at Atmospheric Boundary: |
681456.9 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1282.3 |
(K) |
|
Blackbody T 0.3(K) |
1204.2 |
(K) |
|
Blackbody T 0.7(K) |
974.4 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1525.0 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1432.1 |
(K) |
|
Size Class: |
Super-Jupiter-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 : |
Gaia-2 |
|
Alternate Name : |
EDR3 1107980654748582144 |
|
Star Distance(LY) : |
675.8 |
|
Stellar Radius(Rsun) : |
1.1 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.0 |
(Msun Measured) |
1.0 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5720 |
(K) |
|
Spectral type : |
G4 |
|
UV portion[%]: |
7.7 |
|
Visible portion[%]: |
44.5 |
|
IR portion[%]: |
47.8 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
4.7 |
|
Apparent Magnitude: |
11.3 |
|
Right Ascension(RA) |
110.7353 |
|
Declination (DEC) |
67.2527 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
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Discovered by |
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|
Discovery Paper - Authors |
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|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
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|
SIMBAD LINK |
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|
Open Exoplanet Database Link |
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Gaia-2 b
Gaia-2 b
Gaia-2 b is an exoplanet orbiting the star Gaia-2, located about 675.8 light-years (207.2 pc) away from Solar System. Its discovery was publicly announced on 2021.
The host star Gaia-2 has apparent magnitude of 11.3, with absolute magnitude of 4.7. It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5720 with its spectral types of G4
In this planetary system, the extrasolar planet Gaia-2 b orbits around the star Gaia-2 every 3.7 days with its orbital distance of 0.05 AU ( 6986220.6 km)
(Projected orbit of Gaia-2 b around its host star Gaia-2)
The Star Gaia-2 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.754 AU ( 112821481.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.042 AU ( 155948771.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.588 AU ( 237631415.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.338 AU ( 349685038.3 km)
Radiation at Planetary Boundary of Gaia-2 b : 681456.94 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Gaia-2)
Kopparapu Recent Venus for Star Gaia-2 distance : 0.784 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star Gaia-2 distance : 0.993 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Gaia-2 distance : 0.959 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star Gaia-2 distance : 1.052 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star Gaia-2 distance : 1.757 AU
Kopparapu Outer Boundary for Early Mars for Star Gaia-2 distance : 1.853 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star Gaia-2)
Original Kopparapu Recent Venus for Star Gaia-2 distance : 0.785 AU
Original Kopparapu Runaway Greenhouse for Star Gaia-2 distance : 1.021 AU
Original Kopparapu Moist Greenhouse for Star Gaia-2 distance : 1.038 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Gaia-2 distance : 1.788 AU
Original Kopparapu Outer Boundary for Early Mars for Star Gaia-2 distance : 1.859 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star Gaia-2)
(Position in Stellar Map of star Gaia-2 and its Exoplanet Gaia-2 b)
(Zoomed position in Stellar Map of star Gaia-2 and its Exoplanet Gaia-2 b (zoom level 3))
(Synthetic Spectrum of star Gaia-2*)
*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
