|
Exoplanet Name : |
KOI-6921 b |
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Alternate Name : |
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Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1100 |
(Rjup) |
1.2330 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0065 |
(Mjup) |
2.0811 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0727 |
(AU) |
0.0727 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0188 |
|
Orbital Period(Observed/Estimated) |
6.88 |
(Days Obs.) |
6.90 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.3689 |
|
Star Radiation at Atmospheric Boundary: |
440329.7 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1149.7 |
(K) |
|
Blackbody T 0.3(K) |
1079.7 |
(K) |
|
Blackbody T 0.7(K) |
873.6 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1367.2 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1284.0 |
(K) |
|
Size Class: |
super-Earth-size |
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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 : |
2MASS J19200188+4330076 |
|
Alternate Name : |
7816935 |
|
Star Distance(LY) : |
4447.8 |
|
Stellar Radius(Rsun) : |
1.1 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.1 |
(Msun Measured) |
1.1 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
6276 |
(K) |
|
Spectral type : |
F8 |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
|
Metalicity : |
-0.1 |
|
Absolute Magnitude: |
4.2 |
|
Apparent Magnitude: |
14.9 |
|
Right Ascension(RA) |
290.0078 |
|
Declination (DEC) |
43.5021 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
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Discovered by |
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|
Discovery Paper - Authors |
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Discovery Paper - Title |
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|
Discovery Paper - Journal |
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Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=2MASS+J19200188%2B4330076&submit=SIMBAD+search |
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Open Exoplanet Database Link |
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KOI-6921 b
KOI-6921 b
KOI-6921 b is an exoplanet orbiting the star 2MASS J19200188+4330076, located about 4447.8 light-years (1363.7 pc) away from Solar System. Its discovery was publicly announced on 2017.
The host star 2MASS J19200188+4330076 has apparent magnitude of 14.9, with absolute magnitude of 4.2. It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6276 with its spectral types of F8
In this planetary system, the extrasolar planet KOI-6921 b orbits around the star 2MASS J19200188+4330076 every 6.9 days with its orbital distance of 0.07 AU ( 10875765.2 km)
(Projected orbit of KOI-6921 b around its host star 2MASS J19200188+4330076)
The Star 2MASS J19200188+4330076 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.944 AU ( 141181928.3 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.304 AU ( 195150320.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.988 AU ( 297365901.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.925 AU ( 437586950.4 km)
Radiation at Planetary Boundary of KOI-6921 b : 440329.70 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2MASS J19200188+4330076)
Kopparapu Recent Venus for Star 2MASS J19200188+4330076 distance : 0.949 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2MASS J19200188+4330076 distance : 1.202 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2MASS J19200188+4330076 distance : 1.161 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2MASS J19200188+4330076 distance : 1.272 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19200188+4330076 distance : 2.099 AU
Kopparapu Outer Boundary for Early Mars for Star 2MASS J19200188+4330076 distance : 2.213 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 2MASS J19200188+4330076)
Original Kopparapu Recent Venus for Star 2MASS J19200188+4330076 distance : 0.960 AU
Original Kopparapu Runaway Greenhouse for Star 2MASS J19200188+4330076 distance : 1.233 AU
Original Kopparapu Moist Greenhouse for Star 2MASS J19200188+4330076 distance : 1.271 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19200188+4330076 distance : 2.136 AU
Original Kopparapu Outer Boundary for Early Mars for Star 2MASS J19200188+4330076 distance : 2.222 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 2MASS J19200188+4330076)
(Position in Stellar Map of star 2MASS J19200188+4330076 and its Exoplanet KOI-6921 b)
(Zoomed position in Stellar Map of star 2MASS J19200188+4330076 and its Exoplanet KOI-6921 b (zoom level 3))
(Synthetic Spectrum of star 2MASS J19200188+4330076*)
*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
