|
Exoplanet Name : |
HD 1397 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
1.0260 |
(Rjup) |
11.5004 |
(Rearth) |
|
Mass (Mjup / Me): |
0.4150 |
(Mjup) |
131.9443 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.1097 |
(AU) |
0.1097 |
(AU Est.) |
|
Eccentricity : |
0.2510 |
|
Orbital Period(Yrs) |
0.0316 |
|
Orbital Period(Observed/Estimated) |
11.54 |
(Days Obs.) |
11.54 |
(Days Est.) |
|
Surface Gravity (G Earth) |
0.9976 |
|
Star Radiation at Atmospheric Boundary: |
515738.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1196.1 |
(K) |
|
Blackbody T 0.3(K) |
1123.2 |
(K) |
|
Blackbody T 0.7(K) |
908.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1422.4 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1335.7 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 1397 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
260.1 |
|
Stellar Radius(Rsun) : |
2.3 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.3 |
(Msun Measured) |
1.3 |
(Msun Estimated) |
|
Star Age : |
4.5 |
(GY) |
|
Temperature : |
5528 |
(K) |
|
Spectral type : |
G5III |
|
UV portion[%]: |
7.0 |
|
Visible portion[%]: |
43.4 |
|
IR portion[%]: |
49.6 |
|
Metalicity : |
0.3 |
|
Absolute Magnitude: |
3.4 |
|
Apparent Magnitude: |
7.9 |
|
Right Ascension(RA) |
4.4465 |
|
Declination (DEC) |
-66.3589 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
08846-00638 |
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+1397+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
|
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HD 1397 b
HD 1397 b
HD 1397 b is an exoplanet orbiting the star HD 1397, located about 260.1 light-years (79.8 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star HD 1397 has apparent magnitude of 7.9, with absolute magnitude of 3.4. It is 1.3 times more massive and 2.3 times bigger compared with our Sun. The surface temperature is 5528 with its spectral types of G5III
In this planetary system, the extrasolar planet HD 1397 b orbits around the star HD 1397 every 11.5 days with its orbital distance of 0.11 AU ( 16410886.4 km)
(Projected orbit of HD 1397 b around its host star HD 1397)
The Star HD 1397 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.541 AU ( 230556386.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 2.130 AU ( 318689178.0 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 3.246 AU ( 485611781.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 4.777 AU ( 714599009.7 km)
Radiation at Planetary Boundary of HD 1397 b : 515738.61 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 1397)
Kopparapu Recent Venus for Star HD 1397 distance : 1.621 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 1397 distance : 2.053 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 1397 distance : 1.983 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 1397 distance : 2.174 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 1397 distance : 3.651 AU
Kopparapu Outer Boundary for Early Mars for Star HD 1397 distance : 3.851 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 1397)
Original Kopparapu Recent Venus for Star HD 1397 distance : 1.616 AU
Original Kopparapu Runaway Greenhouse for Star HD 1397 distance : 2.111 AU
Original Kopparapu Moist Greenhouse for Star HD 1397 distance : 2.138 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 1397 distance : 3.715 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 1397 distance : 3.863 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 1397)
(Position in Stellar Map of star HD 1397 and its Exoplanet HD 1397 b)
(Zoomed position in Stellar Map of star HD 1397 and its Exoplanet HD 1397 b (zoom level 3))
(Synthetic Spectrum of star HD 1397*)
*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
