|
Exoplanet Name : |
TOI 186.02 |
|
Alternate Name : |
"HD 21749 c, GJ 143 c" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.0796 |
(Rjup) |
0.8920 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0116 |
(Mjup) |
3.7008 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0695 |
(AU) |
0.0695 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0213 |
|
Orbital Period(Observed/Estimated) |
7.79 |
(Days Obs.) |
7.68 |
(Days Est.) |
|
Surface Gravity (G Earth) |
4.6511 |
|
Star Radiation at Atmospheric Boundary: |
62712.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
706.3 |
(K) |
|
Blackbody T 0.3(K) |
663.3 |
(K) |
|
Blackbody T 0.7(K) |
536.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
839.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
788.8 |
(K) |
|
Size Class: |
Earth-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 : |
TOI-186 |
|
Alternate Name : |
"GJ 143, HD 21749" |
|
Star Distance(LY) : |
53.3 |
|
Stellar Radius(Rsun) : |
0.7 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
0.7 |
(Msun Estimated) |
|
Star Age : |
3.8 |
(GY) |
|
Temperature : |
4640 |
(K) |
|
Spectral type : |
K4.5V |
|
UV portion[%]: |
2.0 |
|
Visible portion[%]: |
33.3 |
|
IR portion[%]: |
64.7 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
7.2 |
|
Apparent Magnitude: |
8.3 |
|
Right Ascension(RA) |
51.7468 |
|
Declination (DEC) |
-63.4992 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
08870-01392 |
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+21749+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
|
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TOI 186.02
TOI 186.02
TOI 186.02 is an exoplanet orbiting the star TOI-186, located about 53.3 light-years (16.3 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star TOI-186 has apparent magnitude of 8.3, with absolute magnitude of 7.2. It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4640 with its spectral types of K4.5V
In this planetary system, the extrasolar planet TOI 186.02 orbits around the star TOI-186 every 7.8 days with its orbital distance of 0.07 AU ( 10397052.0 km)
(Projected orbit of TOI 186.02 around its host star TOI-186)
The Star TOI-186 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.340 AU ( 50935073.1 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.471 AU ( 70405581.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.717 AU ( 107282526.1 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.055 AU ( 157870937.0 km)
Radiation at Planetary Boundary of TOI 186.02 : 62712.32 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-186)
Kopparapu Recent Venus for Star TOI-186 distance : 0.374 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-186 distance : 0.474 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-186 distance : 0.457 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-186 distance : 0.502 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-186 distance : 0.872 AU
Kopparapu Outer Boundary for Early Mars for Star TOI-186 distance : 0.919 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-186)
Original Kopparapu Recent Venus for Star TOI-186 distance : 0.369 AU
Original Kopparapu Runaway Greenhouse for Star TOI-186 distance : 0.489 AU
Original Kopparapu Moist Greenhouse for Star TOI-186 distance : 0.489 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-186 distance : 0.886 AU
Original Kopparapu Outer Boundary for Early Mars for Star TOI-186 distance : 0.921 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-186)
(Position in Stellar Map of star TOI-186 and its Exoplanet TOI 186.02)
(Zoomed position in Stellar Map of star TOI-186 and its Exoplanet TOI 186.02 (zoom level 3))
(Synthetic Spectrum of star TOI-186*)
*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
