|
Exoplanet Name : |
lam Ser b |
|
Alternate Name : |
"27 Ser b, HD 141004 b, HIP 77257 b" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.2110 |
(Rjup) |
2.3651 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0428 |
(Mjup) |
13.6077 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.1238 |
(AU) |
0.1238 |
(AU Est.) |
|
Eccentricity : |
0.1600 |
|
Orbital Period(Yrs) |
0.0425 |
|
Orbital Period(Observed/Estimated) |
15.51 |
(Days Obs.) |
14.09 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.4328 |
|
Star Radiation at Atmospheric Boundary: |
150147.1 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
878.6 |
(K) |
|
Blackbody T 0.3(K) |
825.1 |
(K) |
|
Blackbody T 0.7(K) |
667.6 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1044.8 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
981.2 |
(K) |
|
Size Class: |
sub-Neptune-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 : |
lam Ser |
|
Alternate Name : |
"27 Ser, HD 141004, HIP 77257" |
|
Star Distance(LY) : |
38.5 |
|
Stellar Radius(Rsun) : |
1.2 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
1.3 |
(Msun Measured) |
1.1 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
6050 |
(K) |
|
Spectral type : |
G0 |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
21.6 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
236.6125 |
|
Declination (DEC) |
7.3531 |
|
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 |
|
 |
 |
 |
 |
/
lam Ser b
lam Ser b
lam Ser b is an exoplanet orbiting the star lam Ser, located about 38.5 light-years (11.8 pc) away from Solar System. Its discovery was publicly announced on 2021.
The host star lam Ser has apparent magnitude of 22.0, with absolute magnitude of 21.6. It is 1.3 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6050 with its spectral types of G0
In this planetary system, the extrasolar planet lam Ser b orbits around the star lam Ser every 15.5 days with its orbital distance of 0.12 AU ( 18520216.4 km)
(Projected orbit of lam Ser b around its host star lam Ser)
The Star lam Ser 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.938 AU ( 140389568.6 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.297 AU ( 194055072.0 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.977 AU ( 295696985.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.909 AU ( 435131067.8 km)
Radiation at Planetary Boundary of lam Ser b : 150147.11 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star lam Ser)
Kopparapu Recent Venus for Star lam Ser distance : 0.957 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star lam Ser distance : 1.212 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star lam Ser distance : 1.170 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star lam Ser distance : 1.283 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star lam Ser distance : 2.125 AU
Kopparapu Outer Boundary for Early Mars for Star lam Ser distance : 2.242 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star lam Ser)
Original Kopparapu Recent Venus for Star lam Ser distance : 0.963 AU
Original Kopparapu Runaway Greenhouse for Star lam Ser distance : 1.244 AU
Original Kopparapu Moist Greenhouse for Star lam Ser distance : 1.275 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star lam Ser distance : 2.163 AU
Original Kopparapu Outer Boundary for Early Mars for Star lam Ser distance : 2.250 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star lam Ser)
(Position in Stellar Map of star lam Ser and its Exoplanet lam Ser b)
(Zoomed position in Stellar Map of star lam Ser and its Exoplanet lam Ser b (zoom level 3))
(Synthetic Spectrum of star lam Ser*)
*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
