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Exoplanet Name : |
GJ 1289 b |
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Alternate Name : |
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Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1444 |
(Rjup) |
1.6191 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0197 |
(Mjup) |
6.2729 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.2700 |
(AU) |
0.2700 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.3059 |
|
Orbital Period(Observed/Estimated) |
111.74 |
(Days Obs.) |
111.82 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.3929 |
|
Star Radiation at Atmospheric Boundary: |
102.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
142.0 |
(K) |
|
Blackbody T 0.3(K) |
133.4 |
(K) |
|
Blackbody T 0.7(K) |
107.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
168.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
158.6 |
(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 1289 |
|
Alternate Name : |
"G 130-4, LHS 4003" |
|
Star Distance(LY) : |
28.9 |
|
Stellar Radius(Rsun) : |
0.2 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.2 |
(Msun Measured) |
0.2 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3175 |
(K) |
|
Spectral type : |
M4.5Ve |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
7.4 |
|
IR portion[%]: |
92.3 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
12.9 |
|
Apparent Magnitude: |
12.7 |
|
Right Ascension(RA) |
355.7763 |
|
Declination (DEC) |
36.5370 |
|
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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GJ 1289 b
GJ 1289 b
GJ 1289 b is an exoplanet orbiting the star GJ 1289, located about 28.9 light-years ( 8.9 pc) away from Solar System. Its discovery was publicly announced on 2024.
The host star GJ 1289 has apparent magnitude of 12.7, with absolute magnitude of 12.9. It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3175 with its spectral types of M4.5Ve
In this planetary system, the extrasolar planet GJ 1289 b orbits around the star GJ 1289 every 111.7 days with its orbital distance of 0.27 AU ( 40391425.1 km)
(Projected orbit of GJ 1289 b around its host star GJ 1289)
The Star GJ 1289 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.054 AU ( 8004084.3 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.074 AU ( 11063736.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.113 AU ( 16858685.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.166 AU ( 24808294.5 km)
Radiation at Planetary Boundary of GJ 1289 b : 102.61 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 1289)
Kopparapu Recent Venus for Star GJ 1289 distance : 0.061 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 1289 distance : 0.077 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 1289 distance : 0.074 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 1289 distance : 0.082 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1289 distance : 0.152 AU
Kopparapu Outer Boundary for Early Mars for Star GJ 1289 distance : 0.160 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 1289)
Original Kopparapu Recent Venus for Star GJ 1289 distance : 0.060 AU
Original Kopparapu Runaway Greenhouse for Star GJ 1289 distance : 0.080 AU
Original Kopparapu Moist Greenhouse for Star GJ 1289 distance : 0.080 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 1289 distance : 0.154 AU
Original Kopparapu Outer Boundary for Early Mars for Star GJ 1289 distance : 0.160 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 1289)
(Position in Stellar Map of star GJ 1289 and its Exoplanet GJ 1289 b)
(Zoomed position in Stellar Map of star GJ 1289 and its Exoplanet GJ 1289 b (zoom level 3))
(Synthetic Spectrum of star GJ 1289*)
*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
