|
Exoplanet Name : |
Kepler-54 d |
|
Alternate Name : |
"2MASS J19390574+4303226 d, K00886.03, KIC 7455287 d, KOI-886 d, KOI-886.03, WISE J193905.74+430322.4 d" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1360 |
(Rjup) |
1.5244 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0142 |
(Mjup) |
4.5162 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.1260 |
(AU) |
0.1260 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0575 |
|
Orbital Period(Observed/Estimated) |
21.00 |
(Days Obs.) |
22.87 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.9434 |
|
Star Radiation at Atmospheric Boundary: |
4042.2 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
355.9 |
(K) |
|
Blackbody T 0.3(K) |
334.2 |
(K) |
|
Blackbody T 0.7(K) |
270.4 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
423.2 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
397.4 |
(K) |
|
Size Class: |
super-Earth-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
|
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
Kepler-54 |
|
Alternate Name : |
"2MASS J19390574+4303226, KIC 7455287, KOI-886, WISE J193905.74+430322.4" |
|
Star Distance(LY) : |
886.1 |
|
Stellar Radius(Rsun) : |
0.5 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.5 |
(Msun Measured) |
0.6 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3712 |
(K) |
|
Spectral type : |
M1 V |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
13.3 |
|
IR portion[%]: |
86.4 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
9.1 |
|
Apparent Magnitude: |
16.3 |
|
Right Ascension(RA) |
294.7739 |
|
Declination (DEC) |
43.0563 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Jason H. Ste_en, Daniel C. Fabrycky, Eric Agol, Eric B. Ford, Robert C. Morehead, William D. Cochran, Jack J. Lissauer, Elisabeth R. Adams, William J. Borucki, Steve Bryson, Douglas A. Caldwell, Andrea Dupree, Jon M. Jenkins, Paul Robertson, Jason F. Rowe, Shawn Seader, Susan Thompson, and Joseph D. Twicken" |
|
Discovery Paper - Title |
Transit Timing Observations from Kepler: VII. Con_rmation of 27 planets in 13 multiplanet systems via Transit Timing Variations and orbital stability |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-54+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/Kepler-54%20d/ |
 |
 |
 |
 |
/
Kepler-54 d
Kepler-54 d
Kepler-54 d is an exoplanet orbiting the star Kepler-54, located about 886.1 light-years (271.7 pc) away from Solar System. Its discovery was publicly announced on 2014.
The host star Kepler-54 has apparent magnitude of 16.3, with absolute magnitude of 9.1. It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3712 with its spectral types of M1 V
In this planetary system, the extrasolar planet Kepler-54 d orbits around the star Kepler-54 every 21.0 days with its orbital distance of 0.13 AU ( 18849331.7 km)
(Projected orbit of Kepler-54 d around its host star Kepler-54)
The Star Kepler-54 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.157 AU ( 23444088.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.217 AU ( 32405856.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.330 AU ( 49379354.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.486 AU ( 72663883.3 km)
Radiation at Planetary Boundary of Kepler-54 d : 4042.17 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-54)
Kopparapu Recent Venus for Star Kepler-54 distance : 0.177 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-54 distance : 0.223 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-54 distance : 0.216 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-54 distance : 0.237 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-54 distance : 0.430 AU
Kopparapu Outer Boundary for Early Mars for Star Kepler-54 distance : 0.454 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-54)
Original Kopparapu Recent Venus for Star Kepler-54 distance : 0.175 AU
Original Kopparapu Runaway Greenhouse for Star Kepler-54 distance : 0.231 AU
Original Kopparapu Moist Greenhouse for Star Kepler-54 distance : 0.231 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-54 distance : 0.437 AU
Original Kopparapu Outer Boundary for Early Mars for Star Kepler-54 distance : 0.454 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-54)
(Position in Stellar Map of star Kepler-54 and its Exoplanet Kepler-54 d)
(Zoomed position in Stellar Map of star Kepler-54 and its Exoplanet Kepler-54 d (zoom level 3))
(Synthetic Spectrum of star Kepler-54*)
*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
