|
Exoplanet Name : |
Kepler-452 b |
|
Alternate Name : |
"2MASS J19440088+4416392 b, K07016.01, KIC 8311864 b, KOI-7016 b, KOI-7016.01, WISE J194400.89+441639.2 b" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1450 |
(Rjup) |
1.6253 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0130 |
(Mjup) |
4.1446 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.0460 |
(AU) |
1.0460 |
(AU Est.) |
|
Eccentricity : |
0.0350 |
|
Orbital Period(Yrs) |
1.0536 |
|
Orbital Period(Observed/Estimated) |
384.84 |
(Days Obs.) |
383.15 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.5690 |
|
Star Radiation at Atmospheric Boundary: |
1342.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
270.2 |
(K) |
|
Blackbody T 0.3(K) |
253.7 |
(K) |
|
Blackbody T 0.7(K) |
205.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
321.3 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
301.7 |
(K) |
|
Size Class: |
super-Earth-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
|
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Habitable |
|
Habitability by Kopparapu: |
Habitable |
|
Star Name : |
Kepler-452 |
|
Alternate Name : |
"2MASS J19440088+4416392, KIC 8311864, KOI-7016, WISE J194400.89+441639.2" |
|
Star Distance(LY) : |
1798.7 |
|
Stellar Radius(Rsun) : |
1.1 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.0 |
(Msun Measured) |
1.0 |
(Msun Estimated) |
|
Star Age : |
6.0 |
(GY) |
|
Temperature : |
5589 |
(K) |
|
Spectral type : |
G2 |
|
UV portion[%]: |
7.2 |
|
Visible portion[%]: |
43.8 |
|
IR portion[%]: |
48.9 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
5.0 |
|
Apparent Magnitude: |
13.7 |
|
Right Ascension(RA) |
296.0037 |
|
Declination (DEC) |
44.2776 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Jon M. Jenkins, Joseph D. Twicken, Natalie M. Batalha, Douglas A. Caldwell, William D. Cochran, Michael Endl, David W. Latham, Gilbert A. Esquerdo, Shawn Seader, Allyson Bieryla, Erik Petigura, David R. Ciardi, Geoffrey W. Marcy, Howard Isaacson, Daniel Huber, Jason F. Rowe, Guillermo Torres, Stephen T. Bryson, Lars Buchhave, Ivan Ramirez, Angie Wolfgang, Jie Li, Jennifer R. Campbell, Peter Tenenbaum, Dwight Sanderfer Christopher E. Henze, Joseph H. Catanzarite, Ronald L. Gilliland, and William J. Borucki" |
|
Discovery Paper - Title |
DISCOVERY AND VALIDATION OF Kepler-452b: A 1.6-R_ SUPER EARTH EXOPLANET IN THE HABITABLE ZONE OF A G2 STAR |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-452+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/Kepler-452%20b/ |
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Kepler-452 b
Kepler-452 b
Kepler-452 b is an exoplanet orbiting the star Kepler-452, located about 1798.7 light-years (551.5 pc) away from Solar System. Its discovery was publicly announced on 2015.
The host star Kepler-452 has apparent magnitude of 13.7, with absolute magnitude of 5.0. It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5589 with its spectral types of G2
In this planetary system, the extrasolar planet Kepler-452 b orbits around the star Kepler-452 every 384.8 days with its orbital distance of 1.05 AU ( 156479372.8 km)
(Projected orbit of Kepler-452 b around its host star Kepler-452)
The Star Kepler-452 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.750 AU ( 112167255.1 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.036 AU ( 155044459.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.579 AU ( 236253444.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.324 AU ( 347657293.5 km)
Radiation at Planetary Boundary of Kepler-452 b : 1342.63 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-452)
Kopparapu Recent Venus for Star Kepler-452 distance : 0.786 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-452 distance : 0.995 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-452 distance : 0.961 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-452 distance : 1.054 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-452 distance : 1.767 AU
Kopparapu Outer Boundary for Early Mars for Star Kepler-452 distance : 1.864 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-452)
Original Kopparapu Recent Venus for Star Kepler-452 distance : 0.784 AU
Original Kopparapu Runaway Greenhouse for Star Kepler-452 distance : 1.023 AU
Original Kopparapu Moist Greenhouse for Star Kepler-452 distance : 1.037 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-452 distance : 1.798 AU
Original Kopparapu Outer Boundary for Early Mars for Star Kepler-452 distance : 1.869 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-452)
(Position in Stellar Map of star Kepler-452 and its Exoplanet Kepler-452 b)
(Zoomed position in Stellar Map of star Kepler-452 and its Exoplanet Kepler-452 b (zoom level 3))
(Synthetic Spectrum of star Kepler-452*)
*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
