|
Exoplanet Name : |
HD 2685 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
1.4400 |
(Rjup) |
16.1410 |
(Rearth) |
|
Mass (Mjup / Me): |
1.1800 |
(Mjup) |
375.1668 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0568 |
(AU) |
0.0568 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0113 |
|
Orbital Period(Observed/Estimated) |
4.13 |
(Days Obs.) |
4.12 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.4400 |
|
Star Radiation at Atmospheric Boundary: |
2004465.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1679.4 |
(K) |
|
Blackbody T 0.3(K) |
1577.1 |
(K) |
|
Blackbody T 0.7(K) |
1276.0 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1997.1 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1875.5 |
(K) |
|
Size Class: |
Super-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 2685 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
645.7 |
|
Stellar Radius(Rsun) : |
1.6 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.4 |
(Msun Measured) |
1.4 |
(Msun Estimated) |
|
Star Age : |
1.3 |
(GY) |
|
Temperature : |
6801 |
(K) |
|
Spectral type : |
F4 |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
3.1 |
|
Apparent Magnitude: |
9.6 |
|
Right Ascension(RA) |
7.3290 |
|
Declination (DEC) |
-76.3042 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
09346-00239 |
|
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+2685+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
|
 |
 |
 |
 |
/
HD 2685 b
HD 2685 b
HD 2685 b is an exoplanet orbiting the star HD 2685, located about 645.7 light-years (198.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star HD 2685 has apparent magnitude of 9.6, with absolute magnitude of 3.1. It is 1.4 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 6801 with its spectral types of F4
In this planetary system, the extrasolar planet HD 2685 b orbits around the star HD 2685 every 4.1 days with its orbital distance of 0.06 AU ( 8497159.1 km)
(Projected orbit of HD 2685 b around its host star HD 2685)
The Star HD 2685 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.573 AU ( 235344099.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 2.175 AU ( 325307048.5 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 3.314 AU ( 495695951.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 4.876 AU ( 729438307.9 km)
Radiation at Planetary Boundary of HD 2685 b : 2004465.30 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 2685)
Kopparapu Recent Venus for Star HD 2685 distance : 1.535 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 2685 distance : 1.944 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 2685 distance : 1.878 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 2685 distance : 2.057 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 2685 distance : 3.369 AU
Kopparapu Outer Boundary for Early Mars for Star HD 2685 distance : 3.554 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 2685)
Original Kopparapu Recent Venus for Star HD 2685 distance : 1.572 AU
Original Kopparapu Runaway Greenhouse for Star HD 2685 distance : 1.991 AU
Original Kopparapu Moist Greenhouse for Star HD 2685 distance : 2.080 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 2685 distance : 3.431 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 2685 distance : 3.568 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 2685)
(Position in Stellar Map of star HD 2685 and its Exoplanet HD 2685 b)
(Zoomed position in Stellar Map of star HD 2685 and its Exoplanet HD 2685 b (zoom level 3))
(Synthetic Spectrum of star HD 2685*)
*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
