|
Exoplanet Name : |
HD 22496 b |
|
Alternate Name : |
"GJ 146, HIP 16711" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1402 |
(Rjup) |
1.5712 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0175 |
(Mjup) |
5.5735 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0510 |
(AU) |
0.0510 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0139 |
|
Orbital Period(Observed/Estimated) |
5.09 |
(Days Obs.) |
5.09 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.2575 |
|
Star Radiation at Atmospheric Boundary: |
79188.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
748.7 |
(K) |
|
Blackbody T 0.3(K) |
703.1 |
(K) |
|
Blackbody T 0.7(K) |
568.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
890.4 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
836.1 |
(K) |
|
Size Class: |
super-Earth-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 22496 |
|
Alternate Name : |
"GJ 146, HIP 16711" |
|
Star Distance(LY) : |
44.4 |
|
Stellar Radius(Rsun) : |
0.7 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.7 |
(Msun Measured) |
0.7 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4385 |
(K) |
|
Spectral type : |
K5 |
|
UV portion[%]: |
1.2 |
|
Visible portion[%]: |
29.1 |
|
IR portion[%]: |
69.7 |
|
Metalicity : |
-0.1 |
|
Absolute Magnitude: |
7.3 |
|
Apparent Magnitude: |
8.0 |
|
Right Ascension(RA) |
53.7583 |
|
Declination (DEC) |
-48.4172 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+22496&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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HD 22496 b
HD 22496 b
HD 22496 b is an exoplanet orbiting the star HD 22496, located about 44.4 light-years (13.6 pc) away from Solar System. Its discovery was publicly announced on 2021.
The host star HD 22496 has apparent magnitude of 8.0, with absolute magnitude of 7.3. It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4385 with its spectral types of K5
In this planetary system, the extrasolar planet HD 22496 b orbits around the star HD 22496 every 5.1 days with its orbital distance of 0.05 AU ( 7629491.4 km)
(Projected orbit of HD 22496 b around its host star HD 22496)
The Star HD 22496 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.281 AU ( 42000765.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.388 AU ( 58056033.8 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.591 AU ( 88464547.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.870 AU ( 130179457.5 km)
Radiation at Planetary Boundary of HD 22496 b : 79188.60 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 22496)
Kopparapu Recent Venus for Star HD 22496 distance : 0.311 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 22496 distance : 0.394 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 22496 distance : 0.381 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 22496 distance : 0.418 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 22496 distance : 0.734 AU
Kopparapu Outer Boundary for Early Mars for Star HD 22496 distance : 0.774 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 22496)
Original Kopparapu Recent Venus for Star HD 22496 distance : 0.307 AU
Original Kopparapu Runaway Greenhouse for Star HD 22496 distance : 0.407 AU
Original Kopparapu Moist Greenhouse for Star HD 22496 distance : 0.406 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 22496 distance : 0.746 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 22496 distance : 0.776 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 22496)
(Position in Stellar Map of star HD 22496 and its Exoplanet HD 22496 b)
(Zoomed position in Stellar Map of star HD 22496 and its Exoplanet HD 22496 b (zoom level 3))
(Synthetic Spectrum of star HD 22496*)
*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
