|
Exoplanet Name : |
SPECULOOS-3 b |
|
Alternate Name : |
LSPM J2049+3336 b |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.0872 |
(Rjup) |
0.9770 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0028 |
(Mjup) |
0.9004 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0073 |
(AU) |
0.0073 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0020 |
|
Orbital Period(Observed/Estimated) |
0.72 |
(Days Obs.) |
0.72 |
(Days Est.) |
|
Surface Gravity (G Earth) |
0.9433 |
|
Star Radiation at Atmospheric Boundary: |
21224.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
538.7 |
(K) |
|
Blackbody T 0.3(K) |
505.9 |
(K) |
|
Blackbody T 0.7(K) |
409.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
640.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
601.6 |
(K) |
|
Size Class: |
Earth-size |
|
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 : |
SPECULOOS-3 |
|
Alternate Name : |
LSPM J2049+3336 |
|
Star Distance(LY) : |
57.9 |
|
Stellar Radius(Rsun) : |
0.1 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.1 |
(Msun Measured) |
0.1 |
(Msun Estimated) |
|
Star Age : |
6.6 |
(GY) |
|
Temperature : |
2800 |
(K) |
|
Spectral type : |
M6.5 |
|
UV portion[%]: |
0.1 |
|
Visible portion[%]: |
4.6 |
|
IR portion[%]: |
95.3 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
16.8 |
|
Apparent Magnitude: |
18.0 |
|
Right Ascension(RA) |
312.3642 |
|
Declination (DEC) |
33.6141 |
|
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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SPECULOOS-3 b
SPECULOOS-3 b
SPECULOOS-3 b is an exoplanet orbiting the star SPECULOOS-3, located about 57.9 light-years (17.8 pc) away from Solar System. Its discovery was publicly announced on 2024.
The host star SPECULOOS-3 has apparent magnitude of 18.0, with absolute magnitude of 16.8. It is 0.1 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 2800 with its spectral types of M6.5
In this planetary system, the extrasolar planet SPECULOOS-3 b orbits around the star SPECULOOS-3 every 0.7 days with its orbital distance of 0.01 AU ( 1096552.4 km)
(Projected orbit of SPECULOOS-3 b around its host star SPECULOOS-3)
The Star SPECULOOS-3 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.021 AU ( 3125210.6 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.029 AU ( 4319857.7 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.044 AU ( 6582507.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.065 AU ( 9686447.7 km)
Radiation at Planetary Boundary of SPECULOOS-3 b : 21224.59 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star SPECULOOS-3)
Kopparapu Recent Venus for Star SPECULOOS-3 distance : 0.024 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star SPECULOOS-3 distance : 0.030 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star SPECULOOS-3 distance : 0.029 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star SPECULOOS-3 distance : 0.032 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star SPECULOOS-3 distance : 0.061 AU
Kopparapu Outer Boundary for Early Mars for Star SPECULOOS-3 distance : 0.064 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star SPECULOOS-3)
Original Kopparapu Recent Venus for Star SPECULOOS-3 distance : 0.024 AU
Original Kopparapu Runaway Greenhouse for Star SPECULOOS-3 distance : 0.031 AU
Original Kopparapu Moist Greenhouse for Star SPECULOOS-3 distance : 0.031 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star SPECULOOS-3 distance : 0.062 AU
Original Kopparapu Outer Boundary for Early Mars for Star SPECULOOS-3 distance : 0.064 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star SPECULOOS-3)
(Position in Stellar Map of star SPECULOOS-3 and its Exoplanet SPECULOOS-3 b)
(Zoomed position in Stellar Map of star SPECULOOS-3 and its Exoplanet SPECULOOS-3 b (zoom level 3))
(Synthetic Spectrum of star SPECULOOS-3*)
*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
