Exoplanet Name : |
1RXS J125608.8-692652 (AB)b |
Alternate Name : |
2MASS J12560830-6926539 (AB)b |
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
44.5000 |
(Mjup) |
14148.2410 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
503.0000 |
(AU) |
503.0000 |
(AU Est.) |
Eccentricity : |
0.0000 |
Orbital Period(Yrs) |
0.0000 |
Orbital Period(Observed/Estimated) |
0.00 |
(Days Obs.) |
4924851.98 |
(Days Est.) |
Surface Gravity (G Earth) |
136.6343 |
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
11.3 |
(K) |
Blackbody T 0.3(K) |
10.6 |
(K) |
Blackbody T 0.7(K) |
8.6 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
13.4 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
12.6 |
(K) |
Size Class: |
Jupiter-size |
Mass Class: |
|
Detection Type : |
"Imaging, Astrometry" |
Mass Detection : |
Astrometry |
Radius Detection : |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
1RXS J125608.8-692652 |
Alternate Name : |
2MASS J12560830-6926539 |
Star Distance(LY) : |
321.6 |
Stellar Radius(Rsun) : |
1.8 |
(Rsun Measured) |
Stellar Mass(Msun) : |
0.7 |
(Msun Measured) |
0.0 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
3971 |
(K) |
Spectral type : |
K7Ve |
UV portion[%]: |
0.7 |
Visible portion[%]: |
23.8 |
IR portion[%]: |
75.5 |
Metalicity : |
0.0 |
Absolute Magnitude: |
6.9 |
Apparent Magnitude: |
11.8 |
Right Ascension(RA) |
194.0346 |
Declination (DEC) |
-69.4484 |
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
Discovered by |
|
Discovery Paper - Authors |
|
Discovery Paper - Title |
|
Discovery Paper - Journal |
|
Discovery Paper - URL |
|
SIMBAD LINK |
|
Open Exoplanet Database Link |
|
![](1RXS_J125608.8-692652_(AB)b_CSun.png) |
![](1RXS_J125608.8-692652_(AB)b_CJup.png) |
![](1RXS_J125608.8-692652_(AB)b_CNep.png) |
![](1RXS_J125608.8-692652_(AB)b_CEar.png) |
/
1RXS J125608.8-692652 (AB)b
1RXS J125608.8-692652 (AB)b
1RXS J125608.8-692652 (AB)b is an exoplanet orbiting the star 1RXS J125608.8-692652, located about 321.6 light-years (98.6 pc) away from Solar System. Its discovery was publicly announced on 2024.
The host star 1RXS J125608.8-692652 has apparent magnitude of 11.8, with absolute magnitude of 6.9. It is 0.7 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 3971 with its spectral types of K7Ve
(Projected orbit of 1RXS J125608.8-692652 (AB)b around its host star 1RXS J125608.8-692652)
![](1RXS_J125608.8-692652_(AB)b_Orb.png)
The Star 1RXS J125608.8-692652 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.625 AU ( 93572068.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.865 AU ( 129341052.2 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.317 AU ( 197087140.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.939 AU ( 290022361.0 km)
Radiation at Planetary Boundary of 1RXS J125608.8-692652 (AB)b : 0.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 1RXS J125608.8-692652)
![](1RXS_J125608.8-692652_(AB)b_OrbH.png)
Kopparapu Recent Venus for Star 1RXS J125608.8-692652 distance : 0.701 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 1RXS J125608.8-692652 distance : 0.887 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 1RXS J125608.8-692652 distance : 0.857 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 1RXS J125608.8-692652 distance : 0.942 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 1RXS J125608.8-692652 distance : 1.687 AU
Kopparapu Outer Boundary for Early Mars for Star 1RXS J125608.8-692652 distance : 1.779 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 1RXS J125608.8-692652)
![](1RXS_J125608.8-692652_(AB)b_OrbK.png)
Original Kopparapu Recent Venus for Star 1RXS J125608.8-692652 distance : 0.693 AU
Original Kopparapu Runaway Greenhouse for Star 1RXS J125608.8-692652 distance : 0.918 AU
Original Kopparapu Moist Greenhouse for Star 1RXS J125608.8-692652 distance : 0.917 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 1RXS J125608.8-692652 distance : 1.714 AU
Original Kopparapu Outer Boundary for Early Mars for Star 1RXS J125608.8-692652 distance : 1.782 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 1RXS J125608.8-692652)
![](1RXS_J125608.8-692652_(AB)b_OrbKO.png)
(Position in Stellar Map of star 1RXS J125608.8-692652 and its Exoplanet 1RXS J125608.8-692652 (AB)b)
![](1RXS_J125608.8-692652_(AB)b_STZ0.png)
(Zoomed position in Stellar Map of star 1RXS J125608.8-692652 and its Exoplanet 1RXS J125608.8-692652 (AB)b (zoom level 3))
![](1RXS_J125608.8-692652_(AB)b_STZ3.png)
(Synthetic Spectrum of star 1RXS J125608.8-692652*)
![](1RXS_J125608.8-692652_(AB)b_Spc.png)
*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