|
Exoplanet Name : |
HIP 74890 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
2.4000 |
(Mjup) |
763.0512 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
2.1000 |
(AU) |
2.1000 |
(AU Est.) |
|
Eccentricity : |
0.0700 |
|
Orbital Period(Yrs) |
2.2513 |
|
Orbital Period(Observed/Estimated) |
822.30 |
(Days Obs.) |
842.64 |
(Days Est.) |
|
Surface Gravity (G Earth) |
7.3690 |
|
Star Radiation at Atmospheric Boundary: |
5122.5 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
377.6 |
(K) |
|
Blackbody T 0.3(K) |
354.6 |
(K) |
|
Blackbody T 0.7(K) |
286.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
449.0 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
421.7 |
(K) |
|
Size Class: |
Jupiter-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 : |
HIP 74890 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
298.4 |
|
Stellar Radius(Rsun) : |
5.8 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.7 |
(Msun Measured) |
1.8 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4850 |
(K) |
|
Spectral type : |
K1III |
|
UV portion[%]: |
2.6 |
|
Visible portion[%]: |
35.8 |
|
IR portion[%]: |
61.6 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
2.2 |
|
Apparent Magnitude: |
7.0 |
|
Right Ascension(RA) |
229.5722 |
|
Declination (DEC) |
-41.4206 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
07830-01691 |
|
Discovered by |
|
|
Discovery Paper - Authors |
0 |
|
Discovery Paper - Title |
0 |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP+74890+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
0 |
 |
 |
 |
 |
/
HIP 74890 b
HIP 74890 b
HIP 74890 b is an exoplanet orbiting the star HIP 74890, located about 298.4 light-years (91.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
The host star HIP 74890 has apparent magnitude of 7.0, with absolute magnitude of 2.2. It is 1.7 times more massive and 5.8 times bigger compared with our Sun. The surface temperature is 4850 with its spectral types of K1III
In this planetary system, the extrasolar planet HIP 74890 b orbits around the star HIP 74890 every 822.3 days with its orbital distance of 2.10 AU ( 314155528.5 km)
(Projected orbit of HIP 74890 b around its host star HIP 74890)
The Star HIP 74890 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 2.940 AU ( 439862970.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 4.064 AU ( 608005575.2 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 6.193 AU ( 926465945.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 9.113 AU ( 1363335224.3 km)
Radiation at Planetary Boundary of HIP 74890 b : 5122.53 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HIP 74890)
Kopparapu Recent Venus for Star HIP 74890 distance : 3.203 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HIP 74890 distance : 4.055 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HIP 74890 distance : 3.917 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HIP 74890 distance : 4.299 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 74890 distance : 7.395 AU
Kopparapu Outer Boundary for Early Mars for Star HIP 74890 distance : 7.800 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HIP 74890)
Original Kopparapu Recent Venus for Star HIP 74890 distance : 3.165 AU
Original Kopparapu Runaway Greenhouse for Star HIP 74890 distance : 4.181 AU
Original Kopparapu Moist Greenhouse for Star HIP 74890 distance : 4.188 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 74890 distance : 7.518 AU
Original Kopparapu Outer Boundary for Early Mars for Star HIP 74890 distance : 7.818 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HIP 74890)
(Position in Stellar Map of star HIP 74890 and its Exoplanet HIP 74890 b)
(Zoomed position in Stellar Map of star HIP 74890 and its Exoplanet HIP 74890 b (zoom level 3))
(Synthetic Spectrum of star HIP 74890*)
*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
