|
Exoplanet Name : |
chi Sco b |
|
Alternate Name : |
17 Sco b |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
4.3200 |
(Mjup) |
1373.4922 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.4500 |
(AU) |
1.4500 |
(AU Est.) |
|
Eccentricity : |
0.0600 |
|
Orbital Period(Yrs) |
1.5835 |
|
Orbital Period(Observed/Estimated) |
578.38 |
(Days Obs.) |
577.38 |
(Days Est.) |
|
Surface Gravity (G Earth) |
13.2643 |
|
Star Radiation at Atmospheric Boundary: |
117019.7 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
825.5 |
(K) |
|
Blackbody T 0.3(K) |
775.2 |
(K) |
|
Blackbody T 0.7(K) |
627.2 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
981.7 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
921.9 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
chi Sco |
|
Alternate Name : |
17 Sco |
|
Star Distance(LY) : |
378.3 |
|
Stellar Radius(Rsun) : |
25.9 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
5.1 |
(GY) |
|
Temperature : |
4157 |
(K) |
|
Spectral type : |
K3 III |
|
UV portion[%]: |
0.8 |
|
Visible portion[%]: |
26.5 |
|
IR portion[%]: |
72.6 |
|
Metalicity : |
-0.0 |
|
Absolute Magnitude: |
-0.1 |
|
Apparent Magnitude: |
5.2 |
|
Right Ascension(RA) |
243.4625 |
|
Declination (DEC) |
-11.8378 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
|
|
Open Exoplanet Database Link |
|
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 |
 |
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chi Sco b
chi Sco b
chi Sco b is an exoplanet orbiting the star chi Sco, located about 378.3 light-years (116.0 pc) away from Solar System. Its discovery was publicly announced on 2020.
The host star chi Sco has apparent magnitude of 5.2, with absolute magnitude of -0.1. It is 1.2 times more massive and 25.9 times bigger compared with our Sun. The surface temperature is 4157 with its spectral types of K3 III
In this planetary system, the extrasolar planet chi Sco b orbits around the star chi Sco every 578.4 days with its orbital distance of 1.45 AU ( 216916912.5 km)
(Projected orbit of chi Sco b around its host star chi Sco)
The Star chi Sco 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 9.703 AU ( 1451620720.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 13.413 AU ( 2006519189.4 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 20.438 AU ( 3057491202.9 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 30.076 AU ( 4499232245.2 km)
Radiation at Planetary Boundary of chi Sco b : 117019.68 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star chi Sco)
Kopparapu Recent Venus for Star chi Sco distance : 10.830 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star chi Sco distance : 13.708 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star chi Sco distance : 13.240 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star chi Sco distance : 14.549 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star chi Sco distance : 25.813 AU
Kopparapu Outer Boundary for Early Mars for Star chi Sco distance : 27.231 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star chi Sco)
Original Kopparapu Recent Venus for Star chi Sco distance : 10.690 AU
Original Kopparapu Runaway Greenhouse for Star chi Sco distance : 14.168 AU
Original Kopparapu Moist Greenhouse for Star chi Sco distance : 14.145 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star chi Sco distance : 26.228 AU
Original Kopparapu Outer Boundary for Early Mars for Star chi Sco distance : 27.276 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star chi Sco)
(Position in Stellar Map of star chi Sco and its Exoplanet chi Sco b)
(Zoomed position in Stellar Map of star chi Sco and its Exoplanet chi Sco b (zoom level 3))
(Synthetic Spectrum of star chi Sco*)
*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
