|
Exoplanet Name : |
HD 6434 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
0.3900 |
(Mjup) |
123.9958 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.1400 |
(AU) |
0.1400 |
(AU Est.) |
|
Eccentricity : |
0.1700 |
|
Orbital Period(Yrs) |
0.0602 |
|
Orbital Period(Observed/Estimated) |
22.00 |
(Days Obs.) |
21.53 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.1975 |
|
Star Radiation at Atmospheric Boundary: |
23564.7 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
553.0 |
(K) |
|
Blackbody T 0.3(K) |
519.3 |
(K) |
|
Blackbody T 0.7(K) |
420.2 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
657.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
617.6 |
(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 6434 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
138.3 |
|
Stellar Radius(Rsun) : |
0.6 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
0.8 |
(Msun Estimated) |
|
Star Age : |
3.8 |
(GY) |
|
Temperature : |
5835 |
(K) |
|
Spectral type : |
G3 IV |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
|
Metalicity : |
-0.5 |
|
Absolute Magnitude: |
4.6 |
|
Apparent Magnitude: |
7.7 |
|
Right Ascension(RA) |
16.1673 |
|
Declination (DEC) |
-39.4881 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Natalie R. Hinkel, Stephen R. Kane, Genady Pilyavsky, Tabetha S. Boyajian, David J. James, Dominique Naef, Debra A. Fischer, Stephane Udry" |
|
Discovery Paper - Title |
A New Analysis of the Exoplanet Hosting System HD 6434 |
|
Discovery Paper - Journal |
"The Astronomical Journal,olume 150,umber 6" |
|
Discovery Paper - URL |
http://iopscience.iop.org/article/10.1088/0004-6256/150/6/169/meta |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+6434+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%206434%20b/ |
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HD 6434 b
HD 6434 b
HD 6434 b is an exoplanet orbiting the star HD 6434, located about 138.3 light-years (42.4 pc) away from Solar System. Its discovery was publicly announced on 2000.
The host star HD 6434 has apparent magnitude of 7.7, with absolute magnitude of 4.6. It is 0.8 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 5835 with its spectral types of G3 IV
In this planetary system, the extrasolar planet HD 6434 b orbits around the star HD 6434 every 22.0 days with its orbital distance of 0.14 AU ( 20943701.9 km)
(Projected orbit of HD 6434 b around its host star HD 6434)
The Star HD 6434 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.420 AU ( 62894792.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.581 AU ( 86937039.7 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.886 AU ( 132472809.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.303 AU ( 194939542.2 km)
Radiation at Planetary Boundary of HD 6434 b : 23564.70 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 6434)
Kopparapu Recent Venus for Star HD 6434 distance : 0.434 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 6434 distance : 0.550 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 6434 distance : 0.531 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 6434 distance : 0.582 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 6434 distance : 0.970 AU
Kopparapu Outer Boundary for Early Mars for Star HD 6434 distance : 1.023 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 6434)
Original Kopparapu Recent Venus for Star HD 6434 distance : 0.435 AU
Original Kopparapu Runaway Greenhouse for Star HD 6434 distance : 0.565 AU
Original Kopparapu Moist Greenhouse for Star HD 6434 distance : 0.576 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 6434 distance : 0.987 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 6434 distance : 1.026 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 6434)
(Position in Stellar Map of star HD 6434 and its Exoplanet HD 6434 b)
(Zoomed position in Stellar Map of star HD 6434 and its Exoplanet HD 6434 b (zoom level 3))
(Synthetic Spectrum of star HD 6434*)
*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
