|
Exoplanet Name : |
AU Mic b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.4571 |
(Rjup) |
5.1236 |
(Rearth) |
|
Mass (Mjup / Me): |
0.1160 |
(Mjup) |
36.8808 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0830 |
(AU) |
0.0830 |
(AU Est.) |
|
Eccentricity : |
0.0120 |
|
Orbital Period(Yrs) |
0.0232 |
|
Orbital Period(Observed/Estimated) |
8.46 |
(Days Obs.) |
12.36 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.4049 |
|
Star Radiation at Atmospheric Boundary: |
18743.7 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
522.2 |
(K) |
|
Blackbody T 0.3(K) |
490.4 |
(K) |
|
Blackbody T 0.7(K) |
396.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
621.0 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
583.2 |
(K) |
|
Size Class: |
sub-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 : |
AU Mic |
|
Alternate Name : |
|
|
Star Distance(LY) : |
31.9 |
|
Stellar Radius(Rsun) : |
0.8 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.5 |
(Msun Measured) |
1.1 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3700 |
(K) |
|
Spectral type : |
M1V |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
13.2 |
|
IR portion[%]: |
86.5 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
8.6 |
|
Apparent Magnitude: |
8.6 |
|
Right Ascension(RA) |
311.2917 |
|
Declination (DEC) |
-31.3408 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Peter Plavchan , Thomas Barclay et al." |
|
Discovery Paper - Title |
A planet within the debris disk around the pre-main-sequence star AU Microscopii |
|
Discovery Paper - Journal |
"Nature, 582, 497" |
|
Discovery Paper - URL |
https://www.nature.com/articles/s41586-020-2400-z |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=AU+MIC&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
|
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AU Mic b
AU Mic b
AU Mic b is an exoplanet orbiting the star AU Mic, located about 31.9 light-years ( 9.8 pc) away from Solar System. Its discovery was publicly announced on 2020.
The host star AU Mic has apparent magnitude of 8.6, with absolute magnitude of 8.6. It is 0.5 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 3700 with its spectral types of M1V
In this planetary system, the extrasolar planet AU Mic b orbits around the star AU Mic every 8.5 days with its orbital distance of 0.08 AU ( 12424103.2 km)
(Projected orbit of AU Mic b around its host star AU Mic)
The Star AU Mic 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.222 AU ( 33275364.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.307 AU ( 45995249.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.468 AU ( 70086582.1 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.689 AU ( 103135475.9 km)
Radiation at Planetary Boundary of AU Mic b : 18743.68 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star AU Mic)
Kopparapu Recent Venus for Star AU Mic distance : 0.251 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star AU Mic distance : 0.317 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star AU Mic distance : 0.306 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star AU Mic distance : 0.337 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star AU Mic distance : 0.611 AU
Kopparapu Outer Boundary for Early Mars for Star AU Mic distance : 0.645 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star AU Mic)
Original Kopparapu Recent Venus for Star AU Mic distance : 0.248 AU
Original Kopparapu Runaway Greenhouse for Star AU Mic distance : 0.328 AU
Original Kopparapu Moist Greenhouse for Star AU Mic distance : 0.328 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star AU Mic distance : 0.621 AU
Original Kopparapu Outer Boundary for Early Mars for Star AU Mic distance : 0.646 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star AU Mic)
(Position in Stellar Map of star AU Mic and its Exoplanet AU Mic b)
(Zoomed position in Stellar Map of star AU Mic and its Exoplanet AU Mic b (zoom level 3))
(Synthetic Spectrum of star AU Mic*)
*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
