|
Exoplanet Name : |
HIP 19976 b |
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Alternate Name : |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
0.2347 |
(Rjup) |
2.6308 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0680 |
(Mjup) |
21.6198 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.2340 |
(AU) |
0.2340 |
(AU Est.) |
|
Eccentricity : |
0.3040 |
|
Orbital Period(Yrs) |
0.1388 |
|
Orbital Period(Observed/Estimated) |
50.70 |
(Days Obs.) |
50.51 |
(Days Est.) |
|
Surface Gravity (G Earth) |
3.1237 |
|
Star Radiation at Atmospheric Boundary: |
4631.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
368.2 |
(K) |
|
Blackbody T 0.3(K) |
345.8 |
(K) |
|
Blackbody T 0.7(K) |
279.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
437.9 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
411.2 |
(K) |
|
Size Class: |
sub-Neptune-size |
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Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
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Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
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Star Name : |
HIP 19976 |
|
Alternate Name : |
"GJ 9152, L 374-19" |
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Star Distance(LY) : |
131.3 |
|
Stellar Radius(Rsun) : |
0.8 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.7 |
(Msun Measured) |
0.7 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4316 |
(K) |
|
Spectral type : |
K7V |
|
UV portion[%]: |
0.9 |
|
Visible portion[%]: |
27.8 |
|
IR portion[%]: |
71.3 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
7.4 |
|
Apparent Magnitude: |
10.4 |
|
Right Ascension(RA) |
64.2584 |
|
Declination (DEC) |
-40.7989 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
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Discovered by |
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Discovery Paper - Authors |
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|
Discovery Paper - Title |
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|
Discovery Paper - Journal |
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|
Discovery Paper - URL |
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SIMBAD LINK |
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Open Exoplanet Database Link |
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HIP 19976 b
HIP 19976 b
HIP 19976 b is an exoplanet orbiting the star HIP 19976, located about 131.3 light-years (40.3 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HIP 19976 has apparent magnitude of 10.4, with absolute magnitude of 7.4. It is 0.7 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4316 with its spectral types of K7V
In this planetary system, the extrasolar planet HIP 19976 b orbits around the star HIP 19976 every 50.7 days with its orbital distance of 0.23 AU ( 35005901.7 km)
(Projected orbit of HIP 19976 b around its host star HIP 19976)
The Star HIP 19976 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.312 AU ( 46605619.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.431 AU ( 64421145.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.656 AU ( 98163569.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.966 AU ( 144451992.8 km)
Radiation at Planetary Boundary of HIP 19976 b : 4631.63 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HIP 19976)
Kopparapu Recent Venus for Star HIP 19976 distance : 0.346 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HIP 19976 distance : 0.438 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HIP 19976 distance : 0.423 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HIP 19976 distance : 0.465 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 19976 distance : 0.819 AU
Kopparapu Outer Boundary for Early Mars for Star HIP 19976 distance : 0.864 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HIP 19976)
Original Kopparapu Recent Venus for Star HIP 19976 distance : 0.342 AU
Original Kopparapu Runaway Greenhouse for Star HIP 19976 distance : 0.453 AU
Original Kopparapu Moist Greenhouse for Star HIP 19976 distance : 0.452 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 19976 distance : 0.832 AU
Original Kopparapu Outer Boundary for Early Mars for Star HIP 19976 distance : 0.865 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HIP 19976)
(Position in Stellar Map of star HIP 19976 and its Exoplanet HIP 19976 b)
(Zoomed position in Stellar Map of star HIP 19976 and its Exoplanet HIP 19976 b (zoom level 3))
(Synthetic Spectrum of star HIP 19976*)
*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
