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Exoplanet Name : |
2M 1252+2735 b |
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Alternate Name : |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
6.8800 |
(Mjup) |
2187.4134 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0000 |
(AU) |
0.1262 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0960 |
|
Orbital Period(Observed/Estimated) |
35.08 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
21.1246 |
|
Star Radiation at Atmospheric Boundary: |
43754.4 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
645.5 |
(K) |
|
Blackbody T 0.3(K) |
606.2 |
(K) |
|
Blackbody T 0.7(K) |
490.5 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
767.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
720.9 |
(K) |
|
Size Class: |
Jupiter-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: |
Not habitable |
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Habitability by Kopparapu: |
Not habitable |
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Star Name : |
2M 1252+2735 |
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Alternate Name : |
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Star Distance(LY) : |
643.2 |
|
Stellar Radius(Rsun) : |
0.8 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
0.2 |
(Msun Measured) |
0.2 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5440 |
(K) |
|
Spectral type : |
G8IV |
|
UV portion[%]: |
6.6 |
|
Visible portion[%]: |
42.8 |
|
IR portion[%]: |
50.6 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
5.5 |
|
Apparent Magnitude: |
12.0 |
|
Right Ascension(RA) |
193.2125 |
|
Declination (DEC) |
27.5869 |
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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 |
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Open Exoplanet Database Link |
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2M 1252+2735 b
2M 1252+2735 b
2M 1252+2735 b is an exoplanet orbiting the star 2M 1252+2735, located about 643.2 light-years (197.2 pc) away from Solar System. Its discovery was publicly announced on 2021.
The host star 2M 1252+2735 has apparent magnitude of 12.0, with absolute magnitude of 5.5. It is 0.2 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5440 with its spectral types of G8IV
In this planetary system, the extrasolar planet 2M 1252+2735 b orbits around the star 2M 1252+2735 every 35.1 days with its orbital distance of 0.13 AU ( 18882398.1 km)
(Projected orbit of 2M 1252+2735 b around its host star 2M 1252+2735)
The Star 2M 1252+2735 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.517 AU ( 77267751.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.714 AU ( 106804225.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.088 AU ( 162746003.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.601 AU ( 239487873.8 km)
Radiation at Planetary Boundary of 2M 1252+2735 b : 43754.39 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2M 1252+2735)
Kopparapu Recent Venus for Star 2M 1252+2735 distance : 0.546 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2M 1252+2735 distance : 0.691 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2M 1252+2735 distance : 0.668 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2M 1252+2735 distance : 0.732 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 1252+2735 distance : 1.233 AU
Kopparapu Outer Boundary for Early Mars for Star 2M 1252+2735 distance : 1.301 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 2M 1252+2735)
Original Kopparapu Recent Venus for Star 2M 1252+2735 distance : 0.543 AU
Original Kopparapu Runaway Greenhouse for Star 2M 1252+2735 distance : 0.711 AU
Original Kopparapu Moist Greenhouse for Star 2M 1252+2735 distance : 0.719 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 1252+2735 distance : 1.255 AU
Original Kopparapu Outer Boundary for Early Mars for Star 2M 1252+2735 distance : 1.305 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 2M 1252+2735)
(Position in Stellar Map of star 2M 1252+2735 and its Exoplanet 2M 1252+2735 b)
(Zoomed position in Stellar Map of star 2M 1252+2735 and its Exoplanet 2M 1252+2735 b (zoom level 3))
(Synthetic Spectrum of star 2M 1252+2735*)
*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
