|
Exoplanet Name : |
EPIC 212069861 b |
|
Alternate Name : |
K2-123 b |
|
Radius (Rjup / Re): |
0.2364 |
(Rjup) |
2.6498 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0205 |
(Mjup) |
6.5298 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.1670 |
(AU) |
0.1670 |
(AU Est.) |
|
Eccentricity : |
0.0600 |
|
Orbital Period(Yrs) |
0.0848 |
|
Orbital Period(Observed/Estimated) |
30.96 |
(Days Obs.) |
30.94 |
(Days Est.) |
|
Surface Gravity (G Earth) |
0.9300 |
|
Star Radiation at Atmospheric Boundary: |
3957.1 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
354.0 |
(K) |
|
Blackbody T 0.3(K) |
332.4 |
(K) |
|
Blackbody T 0.7(K) |
269.0 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
421.0 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
395.3 |
(K) |
|
Size Class: |
sub-Neptune-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
|
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
EPIC 212069861 |
|
Alternate Name : |
"K2-123, 2MASS J08574660+2127127" |
|
Star Distance(LY) : |
528.4 |
|
Stellar Radius(Rsun) : |
0.6 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.6 |
(Msun Measured) |
0.6 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4076 |
(K) |
|
Spectral type : |
M0V |
|
UV portion[%]: |
0.7 |
|
Visible portion[%]: |
25.0 |
|
IR portion[%]: |
74.3 |
|
Metalicity : |
-0.0 |
|
Absolute Magnitude: |
16.0 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
134.4442 |
|
Declination (DEC) |
21.4536 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
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Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-id?Ident=K2-123&submit=submit+id |
|
Open Exoplanet Database Link |
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EPIC 212069861 b
EPIC 212069861 b
EPIC 212069861 b is an exoplanet orbiting the star EPIC 212069861, located about 528.4 light-years (162.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
The host star EPIC 212069861 has apparent magnitude of 22.0, with absolute magnitude of 16.0. It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 4076 with its spectral types of M0V
In this planetary system, the extrasolar planet EPIC 212069861 b orbits around the star EPIC 212069861 every 31.0 days with its orbital distance of 0.17 AU ( 24982844.4 km)
(Projected orbit of EPIC 212069861 b around its host star EPIC 212069861)
The Star EPIC 212069861 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.206 AU ( 30744155.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.284 AU ( 42496457.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.433 AU ( 64755197.0 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.637 AU ( 95290109.1 km)
Radiation at Planetary Boundary of EPIC 212069861 b : 3957.13 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star EPIC 212069861)
Kopparapu Recent Venus for Star EPIC 212069861 distance : 0.230 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star EPIC 212069861 distance : 0.291 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star EPIC 212069861 distance : 0.281 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star EPIC 212069861 distance : 0.309 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 212069861 distance : 0.550 AU
Kopparapu Outer Boundary for Early Mars for Star EPIC 212069861 distance : 0.580 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star EPIC 212069861)
Original Kopparapu Recent Venus for Star EPIC 212069861 distance : 0.227 AU
Original Kopparapu Runaway Greenhouse for Star EPIC 212069861 distance : 0.301 AU
Original Kopparapu Moist Greenhouse for Star EPIC 212069861 distance : 0.300 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 212069861 distance : 0.559 AU
Original Kopparapu Outer Boundary for Early Mars for Star EPIC 212069861 distance : 0.581 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star EPIC 212069861)
(Position in Stellar Map of star EPIC 212069861 and its Exoplanet EPIC 212069861 b)
(Zoomed position in Stellar Map of star EPIC 212069861 and its Exoplanet EPIC 212069861 b (zoom level 3))
