Exoplanet Name : |
EPIC 211964830 c |
Alternate Name : |
K2-264 c |
Radius (Rjup / Re): |
0.2380 |
(Rjup) |
2.6680 |
(Rearth) |
Mass (Mjup / Me): |
0.0207 |
(Mjup) |
6.5714 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
0.1128 |
(AU) |
0.1128 |
(AU Est.) |
Eccentricity : |
0.0000 |
Orbital Period(Yrs) |
0.0538 |
Orbital Period(Observed/Estimated) |
19.66 |
(Days Obs.) |
19.66 |
(Days Est.) |
Star Radiation at Atmospheric Boundary: |
3867.3 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
352.0 |
(K) |
Blackbody T 0.3(K) |
330.5 |
(K) |
Blackbody T 0.7(K) |
267.4 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
418.6 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
393.1 |
(K) |
Size Class: |
sub-Neptune-size |
Mass Class: |
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Detection Type : |
Primary Transit |
Mass Detection : |
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Radius Detection : |
Primary Transit |
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
EPIC 211964830 |
Alternate Name : |
"K2-264, 2MASS J08452605+1941544" |
Star Distance(LY) : |
609.9 |
Stellar Radius(Rsun) : |
0.5 |
(Rsun Measured) |
Stellar Mass(Msun) : |
0.5 |
(Msun Measured) |
0.5 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
3660 |
(K) |
Spectral type : |
M2 |
Metalicity : |
-0.0 |
Absolute Magnitude: |
15.6 |
Apparent Magnitude: |
22.0 |
Right Ascension(RA) |
131.3584 |
Declination (DEC) |
19.6984 |
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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EPIC 211964830 c
EPIC 211964830 c
EPIC 211964830 c is an exoplanet orbiting the star EPIC 211964830, located about 609.9 light-years (187.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star EPIC 211964830 has apparent magnitude of 22.0, with absolute magnitude of 15.6. It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3660 with its spectral types of M2
In this planetary system, the extrasolar planet EPIC 211964830 c orbits around the star EPIC 211964830 every 19.7 days with its orbital distance of 0.11 AU ( 16879127.8 km)
(Projected orbit of EPIC 211964830 c around its host star EPIC 211964830)
The Star EPIC 211964830 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.137 AU ( 20534371.9 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.190 AU ( 28383868.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.289 AU ( 43250733.9 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.425 AU ( 63645349.7 km)
Radiation at Planetary Boundary of EPIC 211964830 c : 3867.25 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star EPIC 211964830)
Kopparapu Recent Venus for Star EPIC 211964830 distance : 0.155 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star EPIC 211964830 distance : 0.196 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star EPIC 211964830 distance : 0.189 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star EPIC 211964830 distance : 0.208 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 211964830 distance : 0.378 AU
Kopparapu Outer Boundary for Early Mars for Star EPIC 211964830 distance : 0.399 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star EPIC 211964830)
Original Kopparapu Recent Venus for Star EPIC 211964830 distance : 0.153 AU
Original Kopparapu Runaway Greenhouse for Star EPIC 211964830 distance : 0.203 AU
Original Kopparapu Moist Greenhouse for Star EPIC 211964830 distance : 0.203 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 211964830 distance : 0.384 AU
Original Kopparapu Outer Boundary for Early Mars for Star EPIC 211964830 distance : 0.399 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star EPIC 211964830)
(Position in Stellar Map of star EPIC 211964830 and its Exoplanet EPIC 211964830 c)
(Zoomed position in Stellar Map of star EPIC 211964830 and its Exoplanet EPIC 211964830 c (zoom level 3))