|
Exoplanet Name : |
HH 211 b |
|
Alternate Name : |
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|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
30.0000 |
(Mjup) |
9538.1400 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
4.6000 |
(AU) |
4.6000 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
40.2453 |
|
Orbital Period(Observed/Estimated) |
14700.00 |
(Days Obs.) |
16115.43 |
(Days Est.) |
|
Surface Gravity (G Earth) |
92.1130 |
|
Star Radiation at Atmospheric Boundary: |
15.5 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
88.5 |
(K) |
|
Blackbody T 0.3(K) |
83.1 |
(K) |
|
Blackbody T 0.7(K) |
67.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
105.3 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
98.8 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Other |
|
Mass Detection : |
Spectrum |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HH 211 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
913.2 |
|
Stellar Radius(Rsun) : |
1.5 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.1 |
(Msun Measured) |
0.1 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3300 |
(K) |
|
Spectral type : |
M9 |
|
UV portion[%]: |
0.2 |
|
Visible portion[%]: |
11.2 |
|
IR portion[%]: |
88.6 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
14.8 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
55.9855 |
|
Declination (DEC) |
32.0147 |
|
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 |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
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|
Open Exoplanet Database Link |
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 |
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/
HH 211 b
HH 211 b
HH 211 b is an exoplanet orbiting the star HH 211, located about 913.2 light-years (280.0 pc) away from Solar System. Its discovery was publicly announced on 2009.
The host star HH 211 has apparent magnitude of 22.0, with absolute magnitude of 14.8. It is 0.1 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
In this planetary system, the extrasolar planet HH 211 b orbits around the star HH 211 every 14700.0 days with its orbital distance of 4.60 AU ( 688150205.2 km)
(Projected orbit of HH 211 b around its host star HH 211)
The Star HH 211 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.354 AU ( 52939185.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.489 AU ( 73175788.4 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.745 AU ( 111503707.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.097 AU ( 164082590.6 km)
Radiation at Planetary Boundary of HH 211 b : 15.46 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HH 211)
Kopparapu Recent Venus for Star HH 211 distance : 0.401 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HH 211 distance : 0.507 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HH 211 distance : 0.490 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HH 211 distance : 0.539 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HH 211 distance : 0.996 AU
Kopparapu Outer Boundary for Early Mars for Star HH 211 distance : 1.051 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HH 211)
Original Kopparapu Recent Venus for Star HH 211 distance : 0.398 AU
Original Kopparapu Runaway Greenhouse for Star HH 211 distance : 0.525 AU
Original Kopparapu Moist Greenhouse for Star HH 211 distance : 0.527 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HH 211 distance : 1.012 AU
Original Kopparapu Outer Boundary for Early Mars for Star HH 211 distance : 1.053 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HH 211)
(Position in Stellar Map of star HH 211 and its Exoplanet HH 211 b)
(Zoomed position in Stellar Map of star HH 211 and its Exoplanet HH 211 b (zoom level 3))
(Synthetic Spectrum of star HH 211*)
*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
