|
Exoplanet Name : |
EPIC 203868608 (AB) a |
|
Alternate Name : |
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|
Status : |
Suspended |
|
Radius (Rjup / Re): |
2.7500 |
(Rjup) |
30.8247 |
(Rearth) |
|
Mass (Mjup / Me): |
23.2000 |
(Mjup) |
7376.1616 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
19.3000 |
(AU) |
19.3000 |
(AU Est.) |
|
Eccentricity : |
0.3227 |
|
Orbital Period(Yrs) |
0.0122 |
|
Orbital Period(Observed/Estimated) |
4.45 |
(Days Obs.) |
51016.12 |
(Days Est.) |
|
Surface Gravity (G Earth) |
7.7630 |
|
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
20.9 |
(K) |
|
Blackbody T 0.3(K) |
19.6 |
(K) |
|
Blackbody T 0.7(K) |
15.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
24.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
23.4 |
(K) |
|
Size Class: |
Sub-Star-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Theoretical |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
EPIC 203868608 (AB) |
|
Alternate Name : |
|
|
Star Distance(LY) : |
499.0 |
|
Stellar Radius(Rsun) : |
0.4 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
0.4 |
(Msun Measured) |
48410234.6 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3200 |
(K) |
|
Spectral type : |
M5+M5 |
|
UV portion[%]: |
0.1 |
|
Visible portion[%]: |
8.1 |
|
IR portion[%]: |
91.8 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
16.1 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
244.3292 |
|
Declination (DEC) |
-24.6219 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
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Discovered by |
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|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
|
|
Open Exoplanet Database Link |
|
_a_CSun.png) |
_a_CJup.png) |
_a_CNep.png) |
_a_CEar.png) |
/
EPIC 203868608 (AB) a
EPIC 203868608 (AB) a
EPIC 203868608 (AB) a is an exoplanet orbiting the star EPIC 203868608 (AB), located about 499.0 light-years (153.0 pc) away from Solar System. Its discovery was publicly announced on 2019.
The host star EPIC 203868608 (AB) has apparent magnitude of 22.0, with absolute magnitude of 16.1. It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3200 with its spectral types of M5+M5
In this planetary system, the extrasolar planet EPIC 203868608 (AB) a orbits around the star EPIC 203868608 (AB) every 4.5 days with its orbital distance of 19.30 AU ( 2887238904.5 km)
(Projected orbit of EPIC 203868608 (AB) a around its host star EPIC 203868608 (AB))
_a_Orb.png)
The Star EPIC 203868608 (AB) 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.083 AU ( 12407969.9 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.115 AU ( 17151056.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.175 AU ( 26134415.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.257 AU ( 38457936.9 km)
Radiation at Planetary Boundary of EPIC 203868608 (AB) a : 0.05 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star EPIC 203868608 (AB))
_a_OrbH.png)
Kopparapu Recent Venus for Star EPIC 203868608 (AB) distance : 0.094 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star EPIC 203868608 (AB) distance : 0.119 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star EPIC 203868608 (AB) distance : 0.115 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star EPIC 203868608 (AB) distance : 0.126 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 203868608 (AB) distance : 0.235 AU
Kopparapu Outer Boundary for Early Mars for Star EPIC 203868608 (AB) distance : 0.248 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star EPIC 203868608 (AB))
_a_OrbK.png)
Original Kopparapu Recent Venus for Star EPIC 203868608 (AB) distance : 0.094 AU
Original Kopparapu Runaway Greenhouse for Star EPIC 203868608 (AB) distance : 0.123 AU
Original Kopparapu Moist Greenhouse for Star EPIC 203868608 (AB) distance : 0.124 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 203868608 (AB) distance : 0.239 AU
Original Kopparapu Outer Boundary for Early Mars for Star EPIC 203868608 (AB) distance : 0.248 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star EPIC 203868608 (AB))
_a_OrbKO.png)
(Position in Stellar Map of star EPIC 203868608 (AB) and its Exoplanet EPIC 203868608 (AB) a)
_a_STZ0.png)
(Zoomed position in Stellar Map of star EPIC 203868608 (AB) and its Exoplanet EPIC 203868608 (AB) a (zoom level 3))
_a_STZ3.png)
(Synthetic Spectrum of star EPIC 203868608 (AB)*)
_a_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
