|
Exoplanet Name : |
GJ 1265 b |
|
Alternate Name : |
LP 819-052 |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1506 |
(Rjup) |
1.6886 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0233 |
(Mjup) |
7.4080 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0260 |
(AU) |
0.0260 |
(AU Est.) |
|
Eccentricity : |
0.0400 |
|
Orbital Period(Yrs) |
0.0100 |
|
Orbital Period(Observed/Estimated) |
3.65 |
(Days Obs.) |
3.63 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.5980 |
|
Star Radiation at Atmospheric Boundary: |
7333.2 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
413.0 |
(K) |
|
Blackbody T 0.3(K) |
387.9 |
(K) |
|
Blackbody T 0.7(K) |
313.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
491.2 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
461.3 |
(K) |
|
Size Class: |
super-Earth-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 : |
GJ 1265 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
33.4 |
|
Stellar Radius(Rsun) : |
0.2 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.2 |
(Msun Measured) |
0.2 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3236 |
(K) |
|
Spectral type : |
M4.5V |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
7.6 |
|
IR portion[%]: |
92.0 |
|
Metalicity : |
-0.0 |
|
Absolute Magnitude: |
13.6 |
|
Apparent Magnitude: |
13.7 |
|
Right Ascension(RA) |
333.4286 |
|
Declination (DEC) |
-17.6856 |
|
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+1265+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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GJ 1265 b
GJ 1265 b
GJ 1265 b is an exoplanet orbiting the star GJ 1265, located about 33.4 light-years (10.3 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star GJ 1265 has apparent magnitude of 13.7, with absolute magnitude of 13.6. It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3236 with its spectral types of M4.5V
In this planetary system, the extrasolar planet GJ 1265 b orbits around the star GJ 1265 every 3.7 days with its orbital distance of 0.03 AU ( 3889544.6 km)
(Projected orbit of GJ 1265 b around its host star GJ 1265)
The Star GJ 1265 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.044 AU ( 6515929.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.060 AU ( 9006717.2 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.092 AU ( 13724243.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.135 AU ( 20195826.0 km)
Radiation at Planetary Boundary of GJ 1265 b : 7333.22 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 1265)
Kopparapu Recent Venus for Star GJ 1265 distance : 0.049 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 1265 distance : 0.062 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 1265 distance : 0.060 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 1265 distance : 0.066 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1265 distance : 0.123 AU
Kopparapu Outer Boundary for Early Mars for Star GJ 1265 distance : 0.130 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 1265)
Original Kopparapu Recent Venus for Star GJ 1265 distance : 0.049 AU
Original Kopparapu Runaway Greenhouse for Star GJ 1265 distance : 0.065 AU
Original Kopparapu Moist Greenhouse for Star GJ 1265 distance : 0.065 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1265 distance : 0.125 AU
Original Kopparapu Outer Boundary for Early Mars for Star GJ 1265 distance : 0.130 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 1265)
(Position in Stellar Map of star GJ 1265 and its Exoplanet GJ 1265 b)
(Zoomed position in Stellar Map of star GJ 1265 and its Exoplanet GJ 1265 b (zoom level 3))
(Synthetic Spectrum of star GJ 1265*)
*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
