|
Exoplanet Name : |
HD 2638 b |
|
Alternate Name : |
HIP 2350 b |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
1.0400 |
(Rjup) |
11.6574 |
(Rearth) |
|
Mass (Mjup / Me): |
0.4800 |
(Mjup) |
152.6102 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0440 |
(AU) |
0.0440 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0094 |
|
Orbital Period(Observed/Estimated) |
3.44 |
(Days Obs.) |
3.50 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.1230 |
|
Star Radiation at Atmospheric Boundary: |
364401.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1096.6 |
(K) |
|
Blackbody T 0.3(K) |
1029.8 |
(K) |
|
Blackbody T 0.7(K) |
833.2 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1304.1 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1224.6 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Theoretical |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 2638 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
175.2 |
|
Stellar Radius(Rsun) : |
0.9 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
0.9 |
(Msun Measured) |
1.0 |
(Msun Estimated) |
|
Star Age : |
3.0 |
(GY) |
|
Temperature : |
5192 |
(K) |
|
Spectral type : |
G5 |
|
UV portion[%]: |
4.9 |
|
Visible portion[%]: |
40.0 |
|
IR portion[%]: |
55.0 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
5.8 |
|
Apparent Magnitude: |
9.4 |
|
Right Ascension(RA) |
7.4995 |
|
Declination (DEC) |
-5.7639 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
04671-00094 |
|
Discovered by |
|
|
Discovery Paper - Authors |
"Lewis C. Roberts, Jr., Andrei Tokovinin, Brian D. Mason, Reed L. Riddle, William I. Hartkopf, Nicholas M. Law, Christoph Baranec" |
|
Discovery Paper - Title |
"Know the Star, Know the Planet. III. Discovery of Late-Type Companions to Two Exoplanet Host Stars" |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+2638+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%202638%20b/ |
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HD 2638 b
HD 2638 b
HD 2638 b is an exoplanet orbiting the star HD 2638, located about 175.2 light-years (53.7 pc) away from Solar System. Its discovery was publicly announced on 2005.
The host star HD 2638 has apparent magnitude of 9.4, with absolute magnitude of 5.8. It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5192 with its spectral types of G5
In this planetary system, the extrasolar planet HD 2638 b orbits around the star HD 2638 every 3.4 days with its orbital distance of 0.04 AU ( 6582306.3 km)
(Projected orbit of HD 2638 b around its host star HD 2638)
The Star HD 2638 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.520 AU ( 77731694.6 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.718 AU ( 107445515.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.094 AU ( 163723188.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.610 AU ( 240925843.6 km)
Radiation at Planetary Boundary of HD 2638 b : 364400.95 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 2638)
Kopparapu Recent Venus for Star HD 2638 distance : 0.557 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 2638 distance : 0.705 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 2638 distance : 0.681 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 2638 distance : 0.747 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 2638 distance : 1.268 AU
Kopparapu Outer Boundary for Early Mars for Star HD 2638 distance : 1.338 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 2638)
Original Kopparapu Recent Venus for Star HD 2638 distance : 0.552 AU
Original Kopparapu Runaway Greenhouse for Star HD 2638 distance : 0.726 AU
Original Kopparapu Moist Greenhouse for Star HD 2638 distance : 0.730 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 2638 distance : 1.290 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 2638 distance : 1.341 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 2638)
(Position in Stellar Map of star HD 2638 and its Exoplanet HD 2638 b)
(Zoomed position in Stellar Map of star HD 2638 and its Exoplanet HD 2638 b (zoom level 3))
(Synthetic Spectrum of star HD 2638*)
*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
