|
Exoplanet Name : |
HD 7449 A d |
|
Alternate Name : |
HIP 5806 c |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.2216 |
(Rjup) |
2.4843 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0530 |
(Mjup) |
16.8507 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0000 |
(AU) |
0.2741 |
(AU Est.) |
|
Eccentricity : |
0.2100 |
|
Orbital Period(Yrs) |
0.1400 |
|
Orbital Period(Observed/Estimated) |
51.15 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.7304 |
|
Star Radiation at Atmospheric Boundary: |
21925.1 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
543.1 |
(K) |
|
Blackbody T 0.3(K) |
510.0 |
(K) |
|
Blackbody T 0.7(K) |
412.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
645.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
606.5 |
(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 : |
HD 7449 A |
|
Alternate Name : |
HD 7449 |
|
Star Distance(LY) : |
127.2 |
|
Stellar Radius(Rsun) : |
1.0 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.1 |
(Msun Measured) |
1.1 |
(Msun Estimated) |
|
Star Age : |
2.1 |
(GY) |
|
Temperature : |
6024 |
(K) |
|
Spectral type : |
F8V |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
-0.1 |
|
Absolute Magnitude: |
4.5 |
|
Apparent Magnitude: |
7.5 |
|
Right Ascension(RA) |
18.6208 |
|
Declination (DEC) |
-5.0475 |
|
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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HD 7449 A d
HD 7449 A d
HD 7449 A d is an exoplanet orbiting the star HD 7449 A, located about 127.2 light-years (39.0 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HD 7449 A has apparent magnitude of 7.5, with absolute magnitude of 4.5. It is 1.1 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 6024 with its spectral types of F8V
In this planetary system, the extrasolar planet HD 7449 A d orbits around the star HD 7449 A every 51.2 days with its orbital distance of 0.27 AU ( 41006064.9 km)
(Projected orbit of HD 7449 A d around its host star HD 7449 A)
The Star HD 7449 A 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.794 AU ( 118781666.1 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.098 AU ( 164187303.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.672 AU ( 250185116.6 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.461 AU ( 368158358.9 km)
Radiation at Planetary Boundary of HD 7449 A d : 21925.12 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 7449 A)
Kopparapu Recent Venus for Star HD 7449 A distance : 0.811 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 7449 A distance : 1.027 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 7449 A distance : 0.992 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 7449 A distance : 1.087 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 7449 A distance : 1.802 AU
Kopparapu Outer Boundary for Early Mars for Star HD 7449 A distance : 1.901 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 7449 A)
Original Kopparapu Recent Venus for Star HD 7449 A distance : 0.816 AU
Original Kopparapu Runaway Greenhouse for Star HD 7449 A distance : 1.054 AU
Original Kopparapu Moist Greenhouse for Star HD 7449 A distance : 1.080 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 7449 A distance : 1.834 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 7449 A distance : 1.907 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 7449 A)
(Position in Stellar Map of star HD 7449 A and its Exoplanet HD 7449 A d)
(Zoomed position in Stellar Map of star HD 7449 A and its Exoplanet HD 7449 A d (zoom level 3))
(Synthetic Spectrum of star HD 7449 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
