|
Exoplanet Name : |
HD 66428 c |
|
Alternate Name : |
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|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
27.0000 |
(Mjup) |
8584.3260 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
23.0000 |
(AU) |
23.0000 |
(AU Est.) |
|
Eccentricity : |
0.3200 |
|
Orbital Period(Yrs) |
106.7733 |
|
Orbital Period(Observed/Estimated) |
39000.00 |
(Days Obs.) |
37642.69 |
(Days Est.) |
|
Surface Gravity (G Earth) |
82.9017 |
|
Star Radiation at Atmospheric Boundary: |
3.1 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
59.0 |
(K) |
|
Blackbody T 0.3(K) |
55.4 |
(K) |
|
Blackbody T 0.7(K) |
44.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
70.2 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
65.9 |
(K) |
|
Size Class: |
Jupiter-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 66428 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
179.4 |
|
Stellar Radius(Rsun) : |
1.1 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
1.1 |
(Msun Measured) |
1.1 |
(Msun Estimated) |
|
Star Age : |
5.6 |
(GY) |
|
Temperature : |
5752 |
(K) |
|
Spectral type : |
G5 |
|
UV portion[%]: |
7.7 |
|
Visible portion[%]: |
44.6 |
|
IR portion[%]: |
47.6 |
|
Metalicity : |
0.3 |
|
Absolute Magnitude: |
4.5 |
|
Apparent Magnitude: |
8.2 |
|
Right Ascension(RA) |
120.8667 |
|
Declination (DEC) |
-1.1625 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
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|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+66428&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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HD 66428 c
HD 66428 c
HD 66428 c is an exoplanet orbiting the star HD 66428, located about 179.4 light-years (55.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
The host star HD 66428 has apparent magnitude of 8.2, with absolute magnitude of 4.5. It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5752 with its spectral types of G5
In this planetary system, the extrasolar planet HD 66428 c orbits around the star HD 66428 every 39000.0 days with its orbital distance of 23.00 AU ( 3440751026.1 km)
(Projected orbit of HD 66428 c around its host star HD 66428)
The Star HD 66428 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.787 AU ( 117765639.3 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.088 AU ( 162782889.4 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.658 AU ( 248045099.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.440 AU ( 365009230.3 km)
Radiation at Planetary Boundary of HD 66428 c : 3.06 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 66428)
Kopparapu Recent Venus for Star HD 66428 distance : 0.817 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 66428 distance : 1.035 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 66428 distance : 0.999 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 66428 distance : 1.096 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 66428 distance : 1.829 AU
Kopparapu Outer Boundary for Early Mars for Star HD 66428 distance : 1.929 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 66428)
Original Kopparapu Recent Venus for Star HD 66428 distance : 0.818 AU
Original Kopparapu Runaway Greenhouse for Star HD 66428 distance : 1.063 AU
Original Kopparapu Moist Greenhouse for Star HD 66428 distance : 1.082 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 66428 distance : 1.861 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 66428 distance : 1.935 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 66428)
(Position in Stellar Map of star HD 66428 and its Exoplanet HD 66428 c)
(Zoomed position in Stellar Map of star HD 66428 and its Exoplanet HD 66428 c (zoom level 3))
(Synthetic Spectrum of star HD 66428*)
*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
