|
Exoplanet Name : |
HD 74156 c |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
7.9970 |
(Mjup) |
2542.5502 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
3.8200 |
(AU) |
3.8200 |
(AU Est.) |
|
Eccentricity : |
0.3829 |
|
Orbital Period(Yrs) |
6.7045 |
|
Orbital Period(Observed/Estimated) |
2448.90 |
(Days Obs.) |
2448.92 |
(Days Est.) |
|
Surface Gravity (G Earth) |
24.5543 |
|
Star Radiation at Atmospheric Boundary: |
285.2 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
183.4 |
(K) |
|
Blackbody T 0.3(K) |
172.2 |
(K) |
|
Blackbody T 0.7(K) |
139.4 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
218.1 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
204.8 |
(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 74156 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
210.2 |
|
Stellar Radius(Rsun) : |
1.6 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
3.7 |
(GY) |
|
Temperature : |
5960 |
(K) |
|
Spectral type : |
G1V |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
0.1 |
|
Absolute Magnitude: |
3.6 |
|
Apparent Magnitude: |
7.6 |
|
Right Ascension(RA) |
130.6042 |
|
Declination (DEC) |
4.5781 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Feng,.atherina; Wright,ason.; Nelson,enjamin; Wang,haron.; Ford,ric.; Marcy,eoffrey.; Isaacson,oward; Howard,ndrew." |
|
Discovery Paper - Title |
The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+74156&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2074156%20c/ |
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HD 74156 c
HD 74156 c
HD 74156 c is an exoplanet orbiting the star HD 74156, located about 210.2 light-years (64.4 pc) away from Solar System. Its discovery was publicly announced on 2003.
The host star HD 74156 has apparent magnitude of 7.6, with absolute magnitude of 3.6. It is 1.2 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5960 with its spectral types of G1V
In this planetary system, the extrasolar planet HD 74156 c orbits around the star HD 74156 every 2448.9 days with its orbital distance of 3.82 AU ( 571463866.1 km)
(Projected orbit of HD 74156 c around its host star HD 74156)
The Star HD 74156 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.262 AU ( 188796735.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.744 AU ( 260966426.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.658 AU ( 397655082.4 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 3.912 AU ( 585166873.8 km)
Radiation at Planetary Boundary of HD 74156 c : 285.20 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 74156)
Kopparapu Recent Venus for Star HD 74156 distance : 1.294 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 74156 distance : 1.638 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 74156 distance : 1.582 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 74156 distance : 1.734 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 74156 distance : 2.880 AU
Kopparapu Outer Boundary for Early Mars for Star HD 74156 distance : 3.037 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 74156)
Original Kopparapu Recent Venus for Star HD 74156 distance : 1.300 AU
Original Kopparapu Runaway Greenhouse for Star HD 74156 distance : 1.682 AU
Original Kopparapu Moist Greenhouse for Star HD 74156 distance : 1.720 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 74156 distance : 2.931 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 74156 distance : 3.048 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 74156)
(Position in Stellar Map of star HD 74156 and its Exoplanet HD 74156 c)
(Zoomed position in Stellar Map of star HD 74156 and its Exoplanet HD 74156 c (zoom level 3))
(Synthetic Spectrum of star HD 74156*)
*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
