|
Exoplanet Name : |
HIP 116454 b |
|
Alternate Name : |
K2-2 b |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.2260 |
(Rjup) |
2.5332 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0372 |
(Mjup) |
11.8273 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0980 |
(AU) |
0.0980 |
(AU Est.) |
|
Eccentricity : |
0.2050 |
|
Orbital Period(Yrs) |
0.0250 |
|
Orbital Period(Observed/Estimated) |
9.13 |
(Days Obs.) |
12.73 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.8430 |
|
Star Radiation at Atmospheric Boundary: |
43904.4 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
646.1 |
(K) |
|
Blackbody T 0.3(K) |
606.7 |
(K) |
|
Blackbody T 0.7(K) |
490.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
768.3 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
721.5 |
(K) |
|
Size Class: |
sub-Neptune-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HIP 116454 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
201.0 |
|
Stellar Radius(Rsun) : |
0.7 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
1.5 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5089 |
(K) |
|
Spectral type : |
K2 |
|
UV portion[%]: |
3.8 |
|
Visible portion[%]: |
38.3 |
|
IR portion[%]: |
57.9 |
|
Metalicity : |
-0.2 |
|
Absolute Magnitude: |
6.2 |
|
Apparent Magnitude: |
10.2 |
|
Right Ascension(RA) |
353.9554 |
|
Declination (DEC) |
0.4456 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Andrew Vanderburg, Benjamin T. Montet, John Asher Johnson, Lars A. Buchhave, Li Zeng1, Francesco Pepe, Andrew Collier Cameron, David W. Latham1, Emilio Molinari, et al." |
|
Discovery Paper - Title |
CHARACTERIZING K2 PLANET DISCOVERIES: A SUPER-EARTH TRANSITING THE BRIGHT K-DWARF HIP116454 |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP+116454+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HIP%20116454%20b/ |
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HIP 116454 b
HIP 116454 b
HIP 116454 b is an exoplanet orbiting the star HIP 116454, located about 201.0 light-years (61.6 pc) away from Solar System. Its discovery was publicly announced on 2014.
The host star HIP 116454 has apparent magnitude of 10.2, with absolute magnitude of 6.2. It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5089 with its spectral types of K2
In this planetary system, the extrasolar planet HIP 116454 b orbits around the star HIP 116454 every 9.1 days with its orbital distance of 0.10 AU ( 14660591.3 km)
(Projected orbit of HIP 116454 b around its host star HIP 116454)
The Star HIP 116454 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.402 AU ( 60094681.3 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.555 AU ( 83066554.2 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.846 AU ( 126575046.0 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.245 AU ( 186260725.1 km)
Radiation at Planetary Boundary of HIP 116454 b : 43904.45 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HIP 116454)
Kopparapu Recent Venus for Star HIP 116454 distance : 0.433 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HIP 116454 distance : 0.548 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HIP 116454 distance : 0.529 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HIP 116454 distance : 0.581 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 116454 distance : 0.989 AU
Kopparapu Outer Boundary for Early Mars for Star HIP 116454 distance : 1.044 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HIP 116454)
Original Kopparapu Recent Venus for Star HIP 116454 distance : 0.429 AU
Original Kopparapu Runaway Greenhouse for Star HIP 116454 distance : 0.564 AU
Original Kopparapu Moist Greenhouse for Star HIP 116454 distance : 0.567 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 116454 distance : 1.006 AU
Original Kopparapu Outer Boundary for Early Mars for Star HIP 116454 distance : 1.046 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HIP 116454)
(Position in Stellar Map of star HIP 116454 and its Exoplanet HIP 116454 b)
(Zoomed position in Stellar Map of star HIP 116454 and its Exoplanet HIP 116454 b (zoom level 3))
(Synthetic Spectrum of star HIP 116454*)
*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
