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Exoplanet Name : |
GJ 617A b |
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Alternate Name : |
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Radius (Rjup / Re): |
0.2542 |
(Rjup) |
2.8490 |
(Rearth) |
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Mass (Mjup / Me): |
0.0961 |
(Mjup) |
30.5697 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.3240 |
(AU) |
0.3240 |
(AU Est.) |
|
Eccentricity : |
0.3200 |
|
Orbital Period(Yrs) |
0.2380 |
|
Orbital Period(Observed/Estimated) |
86.93 |
(Days Obs.) |
86.96 |
(Days Est.) |
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Star Radiation at Atmospheric Boundary: |
1015.4 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
251.9 |
(K) |
|
Blackbody T 0.3(K) |
236.6 |
(K) |
|
Blackbody T 0.7(K) |
191.4 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
299.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
281.4 |
(K) |
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Size Class: |
sub-Neptune-size |
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Mass Class: |
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Detection Type : |
Radial Velocity |
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Mass Detection : |
Radial Velocity |
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Radius Detection : |
|
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Habitability by Solar Eq. Astronomical Unit: |
Habitable |
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Habitability by Kopparapu: |
Not habitable |
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Star Name : |
GJ 617 A |
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Alternate Name : |
Gl617A |
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Star Distance(LY) : |
0.0 |
|
Stellar Radius(Rsun) : |
0.5 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
0.6 |
(Msun Measured) |
0.6 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4156 |
(K) |
|
Spectral type : |
M1 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
25.0 |
|
Apparent Magnitude: |
8.9 |
|
Right Ascension(RA) |
244.1781 |
|
Declination (DEC) |
67.2388 |
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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 |
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Discovery Paper - Journal |
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Discovery Paper - URL |
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SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GJ+617A+&submit=SIMBAD+search |
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Open Exoplanet Database Link |
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GJ 617A b
GJ 617A b
GJ 617A b is an exoplanet orbiting the star GJ 617 A. Its discovery was publicly announced on 2018.
The host star GJ 617 A has apparent magnitude of 8.9, with absolute magnitude of 25.0. It is 0.6 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 4156 with its spectral types of M1
In this planetary system, the extrasolar planet GJ 617A b orbits around the star GJ 617 A every 86.9 days with its orbital distance of 0.32 AU ( 48469710.1 km)
(Projected orbit of GJ 617A b around its host star GJ 617 A)
The Star GJ 617 A 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.202 AU ( 30214816.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.279 AU ( 41764772.5 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.425 AU ( 63640270.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.626 AU ( 93649446.4 km)
Radiation at Planetary Boundary of GJ 617A b : 1015.40 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 617 A)
Kopparapu Recent Venus for Star GJ 617 A distance : 0.225 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 617 A distance : 0.285 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 617 A distance : 0.276 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 617 A distance : 0.303 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 617 A distance : 0.537 AU
Kopparapu Outer Boundary for Early Mars for Star GJ 617 A distance : 0.567 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 617 A)
Original Kopparapu Recent Venus for Star GJ 617 A distance : 0.223 AU
Original Kopparapu Runaway Greenhouse for Star GJ 617 A distance : 0.295 AU
Original Kopparapu Moist Greenhouse for Star GJ 617 A distance : 0.294 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 617 A distance : 0.546 AU
Original Kopparapu Outer Boundary for Early Mars for Star GJ 617 A distance : 0.568 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 617 A)
(Position in Stellar Map of star GJ 617 A and its Exoplanet GJ 617A b)
(Zoomed position in Stellar Map of star GJ 617 A and its Exoplanet GJ 617A b (zoom level 3))
