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Exoplanet Name : |
HD 144899 Ab |
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Alternate Name : |
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Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.2315 |
(Rjup) |
2.5944 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0640 |
(Mjup) |
20.3480 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.2420 |
(AU) |
0.2420 |
(AU Est.) |
|
Eccentricity : |
0.8210 |
|
Orbital Period(Yrs) |
0.1106 |
|
Orbital Period(Observed/Estimated) |
40.40 |
(Days Obs.) |
40.37 |
(Days Est.) |
|
Surface Gravity (G Earth) |
3.0231 |
|
Star Radiation at Atmospheric Boundary: |
80093.4 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
750.8 |
(K) |
|
Blackbody T 0.3(K) |
705.1 |
(K) |
|
Blackbody T 0.7(K) |
570.5 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
892.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
838.5 |
(K) |
|
Size Class: |
sub-Neptune-size |
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Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
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Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
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Star Name : |
HD 144899 A |
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Alternate Name : |
|
|
Star Distance(LY) : |
377.2 |
|
Stellar Radius(Rsun) : |
1.6 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
6126 |
(K) |
|
Spectral type : |
F8IV |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
3.7 |
|
Apparent Magnitude: |
9.0 |
|
Right Ascension(RA) |
242.5727 |
|
Declination (DEC) |
-47.9143 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
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Discovered by |
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Discovery Paper - Authors |
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|
Discovery Paper - Title |
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|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
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|
SIMBAD LINK |
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Open Exoplanet Database Link |
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HD 144899 Ab
HD 144899 Ab
HD 144899 Ab is an exoplanet orbiting the star HD 144899 A, located about 377.2 light-years (115.7 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HD 144899 A has apparent magnitude of 9.0, with absolute magnitude of 3.7. It is 1.2 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 6126 with its spectral types of F8IV
In this planetary system, the extrasolar planet HD 144899 Ab orbits around the star HD 144899 A every 40.4 days with its orbital distance of 0.24 AU ( 36202684.7 km)
(Projected orbit of HD 144899 Ab around its host star HD 144899 A)
The Star HD 144899 A 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.340 AU ( 200433036.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.852 AU ( 277050835.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.822 AU ( 422164161.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 4.153 AU ( 621233057.4 km)
Radiation at Planetary Boundary of HD 144899 Ab : 80093.35 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 144899 A)
Kopparapu Recent Venus for Star HD 144899 A distance : 1.360 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 144899 A distance : 1.722 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 144899 A distance : 1.663 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 144899 A distance : 1.822 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 144899 A distance : 3.015 AU
Kopparapu Outer Boundary for Early Mars for Star HD 144899 A distance : 3.180 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 144899 A)
Original Kopparapu Recent Venus for Star HD 144899 A distance : 1.371 AU
Original Kopparapu Runaway Greenhouse for Star HD 144899 A distance : 1.767 AU
Original Kopparapu Moist Greenhouse for Star HD 144899 A distance : 1.815 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 144899 A distance : 3.069 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 144899 A distance : 3.192 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 144899 A)
(Position in Stellar Map of star HD 144899 A and its Exoplanet HD 144899 Ab)
(Zoomed position in Stellar Map of star HD 144899 A and its Exoplanet HD 144899 Ab (zoom level 3))
(Synthetic Spectrum of star HD 144899 A*)
*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
