|
Exoplanet Name : |
LHS 475 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.0883 |
(Rjup) |
0.9898 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0031 |
(Mjup) |
0.9792 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0000 |
(AU) |
0.0201 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0056 |
|
Orbital Period(Observed/Estimated) |
2.03 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
0.9996 |
|
Star Radiation at Atmospheric Boundary: |
28491.5 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
579.9 |
(K) |
|
Blackbody T 0.3(K) |
544.5 |
(K) |
|
Blackbody T 0.7(K) |
440.6 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
689.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
647.6 |
(K) |
|
Size Class: |
Earth-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Theoretical |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
LHS 475 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
40.7 |
|
Stellar Radius(Rsun) : |
0.3 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.3 |
(Msun Measured) |
0.3 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3312 |
(K) |
|
Spectral type : |
M3.5V |
|
UV portion[%]: |
0.2 |
|
Visible portion[%]: |
11.8 |
|
IR portion[%]: |
88.0 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
12.2 |
|
Apparent Magnitude: |
12.7 |
|
Right Ascension(RA) |
290.2266 |
|
Declination (DEC) |
-82.5545 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
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|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
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|
Open Exoplanet Database Link |
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LHS 475 b
LHS 475 b
LHS 475 b is an exoplanet orbiting the star LHS 475, located about 40.7 light-years (12.5 pc) away from Solar System. Its discovery was publicly announced on 2023.
The host star LHS 475 has apparent magnitude of 12.7, with absolute magnitude of 12.2. It is 0.3 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3312 with its spectral types of M3.5V
In this planetary system, the extrasolar planet LHS 475 b orbits around the star LHS 475 every 2.0 days with its orbital distance of 0.02 AU ( 3002614.8 km)
(Projected orbit of LHS 475 b around its host star LHS 475)
The Star LHS 475 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.066 AU ( 9914875.9 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.092 AU ( 13704949.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.140 AU ( 20883310.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.205 AU ( 30730705.9 km)
Radiation at Planetary Boundary of LHS 475 b : 28491.46 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star LHS 475)
Kopparapu Recent Venus for Star LHS 475 distance : 0.075 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star LHS 475 distance : 0.095 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star LHS 475 distance : 0.092 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star LHS 475 distance : 0.101 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star LHS 475 distance : 0.186 AU
Kopparapu Outer Boundary for Early Mars for Star LHS 475 distance : 0.197 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star LHS 475)
Original Kopparapu Recent Venus for Star LHS 475 distance : 0.075 AU
Original Kopparapu Runaway Greenhouse for Star LHS 475 distance : 0.098 AU
Original Kopparapu Moist Greenhouse for Star LHS 475 distance : 0.099 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star LHS 475 distance : 0.189 AU
Original Kopparapu Outer Boundary for Early Mars for Star LHS 475 distance : 0.197 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star LHS 475)
(Position in Stellar Map of star LHS 475 and its Exoplanet LHS 475 b)
(Zoomed position in Stellar Map of star LHS 475 and its Exoplanet LHS 475 b (zoom level 3))
(Synthetic Spectrum of star LHS 475*)
*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
