|
Exoplanet Name : |
Kepler-448 c |
|
Alternate Name : |
"KOI-12 c, 2MASS J19494889+4100395 c, KIC 5812701 c, TYC 3140-349-1 c, WISE J194948.89+410039.6 c" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
22.0000 |
(Mjup) |
6994.6360 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
4.2000 |
(AU) |
4.2000 |
(AU Est.) |
|
Eccentricity : |
0.6500 |
|
Orbital Period(Yrs) |
6.8444 |
|
Orbital Period(Observed/Estimated) |
2500.00 |
(Days Obs.) |
2566.96 |
(Days Est.) |
|
Surface Gravity (G Earth) |
67.5495 |
|
Star Radiation at Atmospheric Boundary: |
294.8 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
184.9 |
(K) |
|
Blackbody T 0.3(K) |
173.7 |
(K) |
|
Blackbody T 0.7(K) |
140.5 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
219.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
206.5 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
TTV |
|
Mass Detection : |
TTV |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
KOI-12 |
|
Alternate Name : |
"KOI-12, 2MASS J19494889+4100395, KIC 5812701, Kepler-448, TYC 3140-349-1, WISE J194948.89+410039.6" |
|
Star Distance(LY) : |
1317.6 |
|
Stellar Radius(Rsun) : |
1.4 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.5 |
(Msun Measured) |
1.6 |
(Msun Estimated) |
|
Star Age : |
1.5 |
(GY) |
|
Temperature : |
6820 |
(K) |
|
Spectral type : |
F3 |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
3.5 |
|
Apparent Magnitude: |
11.5 |
|
Right Ascension(RA) |
297.4537 |
|
Declination (DEC) |
41.0110 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
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=Kepler-448+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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Kepler-448 c
Kepler-448 c
Kepler-448 c is an exoplanet orbiting the star KOI-12, located about 1317.6 light-years (404.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
The host star KOI-12 has apparent magnitude of 11.5, with absolute magnitude of 3.5. It is 1.5 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6820 with its spectral types of F3
In this planetary system, the extrasolar planet Kepler-448 c orbits around the star KOI-12 every 2500.0 days with its orbital distance of 4.20 AU ( 628311056.9 km)
(Projected orbit of Kepler-448 c around its host star KOI-12)
The Star KOI-12 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.411 AU ( 211035198.6 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.950 AU ( 291705794.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.971 AU ( 444495076.6 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 4.372 AU ( 654093977.3 km)
Radiation at Planetary Boundary of Kepler-448 c : 294.78 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KOI-12)
Kopparapu Recent Venus for Star KOI-12 distance : 1.375 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star KOI-12 distance : 1.742 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KOI-12 distance : 1.682 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star KOI-12 distance : 1.843 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-12 distance : 3.018 AU
Kopparapu Outer Boundary for Early Mars for Star KOI-12 distance : 3.183 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star KOI-12)
Original Kopparapu Recent Venus for Star KOI-12 distance : 1.409 AU
Original Kopparapu Runaway Greenhouse for Star KOI-12 distance : 1.784 AU
Original Kopparapu Moist Greenhouse for Star KOI-12 distance : 1.864 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-12 distance : 3.073 AU
Original Kopparapu Outer Boundary for Early Mars for Star KOI-12 distance : 3.196 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star KOI-12)
(Position in Stellar Map of star KOI-12 and its Exoplanet Kepler-448 c)
(Zoomed position in Stellar Map of star KOI-12 and its Exoplanet Kepler-448 c (zoom level 3))
(Synthetic Spectrum of star KOI-12*)
*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
