|
Exoplanet Name : |
RIK 72 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
3.0600 |
(Rjup) |
34.2995 |
(Rearth) |
|
Mass (Mjup / Me): |
56.1000 |
(Mjup) |
17836.3218 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0000 |
(AU) |
0.3158 |
(AU Est.) |
|
Eccentricity : |
0.1310 |
|
Orbital Period(Yrs) |
0.2679 |
|
Orbital Period(Observed/Estimated) |
97.84 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
15.1610 |
|
Star Radiation at Atmospheric Boundary: |
1428.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
274.4 |
(K) |
|
Blackbody T 0.3(K) |
257.7 |
(K) |
|
Blackbody T 0.7(K) |
208.5 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
326.3 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
306.4 |
(K) |
|
Size Class: |
Sub-Star-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
|
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
RIK 72 |
|
Alternate Name : |
"EPIC 205207894, TIC 9848368" |
|
Star Distance(LY) : |
0.0 |
|
Stellar Radius(Rsun) : |
1.0 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.4 |
(Msun Measured) |
0.4 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3349 |
(K) |
|
Spectral type : |
M 2.5 e |
|
UV portion[%]: |
0.2 |
|
Visible portion[%]: |
12.4 |
|
IR portion[%]: |
87.3 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
25.0 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
240.9135 |
|
Declination (DEC) |
-18.8582 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=RIK+72&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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RIK 72 b
RIK 72 b
RIK 72 b is an exoplanet orbiting the star RIK 72. Its discovery was publicly announced on 2019.
The host star RIK 72 has apparent magnitude of 22.0, with absolute magnitude of 25.0. It is 0.4 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 3349 with its spectral types of M 2.5 e
In this planetary system, the extrasolar planet RIK 72 b orbits around the star RIK 72 every 97.8 days with its orbital distance of 0.32 AU ( 47245929.6 km)
(Projected orbit of RIK 72 b around its host star RIK 72)
The Star RIK 72 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.233 AU ( 34931062.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.323 AU ( 48283856.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.492 AU ( 73573912.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.724 AU ( 108267235.6 km)
Radiation at Planetary Boundary of RIK 72 b : 1428.35 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star RIK 72)
Kopparapu Recent Venus for Star RIK 72 distance : 0.264 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star RIK 72 distance : 0.334 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star RIK 72 distance : 0.323 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star RIK 72 distance : 0.355 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star RIK 72 distance : 0.656 AU
Kopparapu Outer Boundary for Early Mars for Star RIK 72 distance : 0.692 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star RIK 72)
Original Kopparapu Recent Venus for Star RIK 72 distance : 0.262 AU
Original Kopparapu Runaway Greenhouse for Star RIK 72 distance : 0.346 AU
Original Kopparapu Moist Greenhouse for Star RIK 72 distance : 0.347 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star RIK 72 distance : 0.666 AU
Original Kopparapu Outer Boundary for Early Mars for Star RIK 72 distance : 0.693 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star RIK 72)
(Position in Stellar Map of star RIK 72 and its Exoplanet RIK 72 b)
(Zoomed position in Stellar Map of star RIK 72 and its Exoplanet RIK 72 b (zoom level 3))
(Synthetic Spectrum of star RIK 72*)
*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
