|
Exoplanet Name : |
TOI-1228 b |
|
Alternate Name : |
"HD 56414 b, TOI-1228.01" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.3310 |
(Rjup) |
3.7102 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0281 |
(Mjup) |
8.9300 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.2290 |
(AU) |
0.2290 |
(AU Est.) |
|
Eccentricity : |
0.6800 |
|
Orbital Period(Yrs) |
0.0795 |
|
Orbital Period(Observed/Estimated) |
29.05 |
(Days Obs.) |
29.11 |
(Days Est.) |
|
Surface Gravity (G Earth) |
0.6487 |
|
Star Radiation at Atmospheric Boundary: |
374267.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1103.9 |
(K) |
|
Blackbody T 0.3(K) |
1036.7 |
(K) |
|
Blackbody T 0.7(K) |
838.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1312.8 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1232.8 |
(K) |
|
Size Class: |
Neptune-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 : |
HD 56414 |
|
Alternate Name : |
TOI-1228 |
|
Star Distance(LY) : |
873.3 |
|
Stellar Radius(Rsun) : |
1.8 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.9 |
(Msun Measured) |
1.9 |
(Msun Estimated) |
|
Star Age : |
0.4 |
(GY) |
|
Temperature : |
8500 |
(K) |
|
Spectral type : |
A |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
2.1 |
|
Apparent Magnitude: |
9.2 |
|
Right Ascension(RA) |
107.8417 |
|
Declination (DEC) |
-68.8333 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
09178-01257 |
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+56414&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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TOI-1228 b
TOI-1228 b
TOI-1228 b is an exoplanet orbiting the star HD 56414, located about 873.3 light-years (267.7 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HD 56414 has apparent magnitude of 9.2, with absolute magnitude of 2.1. It is 1.9 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 8500 with its spectral types of A
In this planetary system, the extrasolar planet TOI-1228 b orbits around the star HD 56414 every 29.0 days with its orbital distance of 0.23 AU ( 34257912.4 km)
(Projected orbit of TOI-1228 b around its host star HD 56414)
The Star HD 56414 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 2.741 AU ( 409998351.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 3.788 AU ( 566724866.4 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 5.773 AU ( 863563280.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 8.495 AU ( 1270771197.5 km)
Radiation at Planetary Boundary of TOI-1228 b : 374267.26 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 56414)
Kopparapu Recent Venus for Star HD 56414 distance : 2.608 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 56414 distance : 3.304 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 56414 distance : 3.190 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 56414 distance : 3.489 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 56414 distance : 5.703 AU
Kopparapu Outer Boundary for Early Mars for Star HD 56414 distance : 6.013 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 56414)
Original Kopparapu Recent Venus for Star HD 56414 distance : 2.699 AU
Original Kopparapu Runaway Greenhouse for Star HD 56414 distance : 3.366 AU
Original Kopparapu Moist Greenhouse for Star HD 56414 distance : 3.572 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 56414 distance : 5.800 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 56414 distance : 6.031 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 56414)
(Position in Stellar Map of star HD 56414 and its Exoplanet TOI-1228 b)
(Zoomed position in Stellar Map of star HD 56414 and its Exoplanet TOI-1228 b (zoom level 3))
(Synthetic Spectrum of star HD 56414*)
*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
