|
Exoplanet Name : |
HD 27442 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
1.3500 |
(Mjup) |
429.2163 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.1600 |
(AU) |
1.1600 |
(AU Est.) |
|
Eccentricity : |
0.0580 |
|
Orbital Period(Yrs) |
1.1367 |
|
Orbital Period(Observed/Estimated) |
415.20 |
(Days Obs.) |
416.57 |
(Days Est.) |
|
Surface Gravity (G Earth) |
4.1451 |
|
Star Radiation at Atmospheric Boundary: |
20192.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
532.0 |
(K) |
|
Blackbody T 0.3(K) |
499.6 |
(K) |
|
Blackbody T 0.7(K) |
404.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
632.7 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
594.2 |
(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 27442 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
59.5 |
|
Stellar Radius(Rsun) : |
6.6 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
7.2 |
(GY) |
|
Temperature : |
4749 |
(K) |
|
Spectral type : |
K2 IV a |
|
UV portion[%]: |
2.3 |
|
Visible portion[%]: |
34.9 |
|
IR portion[%]: |
62.8 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
3.1 |
|
Apparent Magnitude: |
4.4 |
|
Right Ascension(RA) |
64.1210 |
|
Declination (DEC) |
-59.3019 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
08508-02041 |
|
Discovered by |
|
|
Discovery Paper - Authors |
"G. Chauvin, A.-M. Lagrange, S. Udry, and M. Mayor" |
|
Discovery Paper - Title |
"Characterization of the long-period companions of the exoplanet host stars: HD196885, HD1237 and HD27442_ VLT/NACO and SINFONI near-infrared, follow-up imaging and spectroscopy" |
|
Discovery Paper - Journal |
"A&A 475, 723-727 (2007) DOI: 10.1051/0004-6361:20067046" |
|
Discovery Paper - URL |
http://www.aanda.org/articles/aa/ps/2007/44/aa7046-06.ps.gz |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+27442+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2027442%20A%20b/ |
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HD 27442 b
HD 27442 b
HD 27442 b is an exoplanet orbiting the star HD 27442, located about 59.5 light-years (18.2 pc) away from Solar System. Its discovery was publicly announced on 2000.
The host star HD 27442 has apparent magnitude of 4.4, with absolute magnitude of 3.1. It is 1.2 times more massive and 6.6 times bigger compared with our Sun. The surface temperature is 4749 with its spectral types of K2 IV a
In this planetary system, the extrasolar planet HD 27442 b orbits around the star HD 27442 every 415.2 days with its orbital distance of 1.16 AU ( 173533530.0 km)
(Projected orbit of HD 27442 b around its host star HD 27442)
The Star HD 27442 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 3.225 AU ( 482398987.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 4.457 AU ( 666801466.0 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 6.792 AU ( 1016057871.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 9.995 AU ( 1495173668.3 km)
Radiation at Planetary Boundary of HD 27442 b : 20192.28 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 27442)
Kopparapu Recent Venus for Star HD 27442 distance : 3.528 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 27442 distance : 4.466 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 27442 distance : 4.314 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 27442 distance : 4.736 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 27442 distance : 8.180 AU
Kopparapu Outer Boundary for Early Mars for Star HD 27442 distance : 8.629 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 27442)
Original Kopparapu Recent Venus for Star HD 27442 distance : 3.484 AU
Original Kopparapu Runaway Greenhouse for Star HD 27442 distance : 4.607 AU
Original Kopparapu Moist Greenhouse for Star HD 27442 distance : 4.610 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 27442 distance : 8.315 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 27442 distance : 8.648 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 27442)
(Position in Stellar Map of star HD 27442 and its Exoplanet HD 27442 b)
(Zoomed position in Stellar Map of star HD 27442 and its Exoplanet HD 27442 b (zoom level 3))
(Synthetic Spectrum of star HD 27442*)
*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
