Exoplanet Name : |
HD 171028 b |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
1.9800 |
(Mjup) |
629.5172 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
1.3200 |
(AU) |
1.3200 |
(AU Est.) |
Eccentricity : |
0.5900 |
Orbital Period(Yrs) |
1.5058 |
Orbital Period(Observed/Estimated) |
550.00 |
(Days Obs.) |
556.72 |
(Days Est.) |
Surface Gravity (G Earth) |
6.0795 |
Star Radiation at Atmospheric Boundary: |
2752.4 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
323.3 |
(K) |
Blackbody T 0.3(K) |
303.6 |
(K) |
Blackbody T 0.7(K) |
245.6 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
384.4 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
361.0 |
(K) |
Size Class: |
Jupiter-size |
Mass Class: |
|
Detection Type : |
Radial Velocity |
Mass Detection : |
|
Radius Detection : |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
HD 171028 |
Alternate Name : |
|
Star Distance(LY) : |
368.1 |
Stellar Radius(Rsun) : |
1.9 |
(Rsun Measured) |
Stellar Mass(Msun) : |
1.0 |
(Msun Measured) |
1.0 |
(Msun Estimated) |
Star Age : |
8.0 |
(GY) |
Temperature : |
5663 |
(K) |
Spectral type : |
G0 |
UV portion[%]: |
7.5 |
Visible portion[%]: |
44.2 |
IR portion[%]: |
48.3 |
Metalicity : |
-0.5 |
Absolute Magnitude: |
3.0 |
Apparent Magnitude: |
8.3 |
Right Ascension(RA) |
278.0646 |
Declination (DEC) |
6.9458 |
Hubble Space Telescope Guide Star Catalog (GSC) ID |
00458-01450 |
Discovered by |
|
Discovery Paper - Authors |
0 |
Discovery Paper - Title |
|
Discovery Paper - Journal |
0 |
Discovery Paper - URL |
0 |
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+171028+&submit=SIMBAD+search |
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%20171028%20b/ |
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HD 171028 b
HD 171028 b
HD 171028 b is an exoplanet orbiting the star HD 171028, located about 368.1 light-years (112.9 pc) away from Solar System. Its discovery was publicly announced on 2007.
The host star HD 171028 has apparent magnitude of 8.3, with absolute magnitude of 3.0. It is 1.0 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 5663 with its spectral types of G0
In this planetary system, the extrasolar planet HD 171028 b orbits around the star HD 171028 every 550.0 days with its orbital distance of 1.32 AU ( 197469189.3 km)
(Projected orbit of HD 171028 b around its host star HD 171028)
The Star HD 171028 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.355 AU ( 202668310.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.873 AU ( 280140568.7 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.853 AU ( 426872231.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 4.199 AU ( 628161188.9 km)
Radiation at Planetary Boundary of HD 171028 b : 2752.41 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 171028)
Kopparapu Recent Venus for Star HD 171028 distance : 1.414 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 171028 distance : 1.790 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 171028 distance : 1.729 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 171028 distance : 1.896 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 171028 distance : 3.172 AU
Kopparapu Outer Boundary for Early Mars for Star HD 171028 distance : 3.345 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 171028)
Original Kopparapu Recent Venus for Star HD 171028 distance : 1.413 AU
Original Kopparapu Runaway Greenhouse for Star HD 171028 distance : 1.840 AU
Original Kopparapu Moist Greenhouse for Star HD 171028 distance : 1.869 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 171028 distance : 3.227 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 171028 distance : 3.356 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 171028)
(Position in Stellar Map of star HD 171028 and its Exoplanet HD 171028 b)
(Zoomed position in Stellar Map of star HD 171028 and its Exoplanet HD 171028 b (zoom level 3))
(Synthetic Spectrum of star HD 171028*)
*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