|
Exoplanet Name : |
HD 33844 c |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
1.7500 |
(Mjup) |
556.3915 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
2.2400 |
(AU) |
2.2400 |
(AU Est.) |
|
Eccentricity : |
0.1300 |
|
Orbital Period(Yrs) |
2.5078 |
|
Orbital Period(Observed/Estimated) |
916.00 |
(Days Obs.) |
925.64 |
(Days Est.) |
|
Surface Gravity (G Earth) |
5.3733 |
|
Star Radiation at Atmospheric Boundary: |
271.1 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
181.1 |
(K) |
|
Blackbody T 0.3(K) |
170.1 |
(K) |
|
Blackbody T 0.7(K) |
137.6 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
215.4 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
202.3 |
(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 : |
HD 33844 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
344.8 |
|
Stellar Radius(Rsun) : |
1.4 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
1.8 |
(Msun Measured) |
1.8 |
(Msun Estimated) |
|
Star Age : |
2.1 |
(GY) |
|
Temperature : |
4827 |
(K) |
|
Spectral type : |
K3 |
|
UV portion[%]: |
2.5 |
|
Visible portion[%]: |
35.6 |
|
IR portion[%]: |
61.9 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
16.9 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
78.1500 |
|
Declination (DEC) |
-13.0489 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Robert A. Wittenmyer, John Asher Johnson, R.P. Butler, Jonathan Horner, Liang Wang, Paul Robertson, M.I. Jones, J.S. Jenkins, R. Brahm, C.G. Tinney, M.W. Mengel, J. Clark" |
|
Discovery Paper - Title |
The Pan-Pacific Planet Search. IV. Two super-Jupiters in a 3:5 resonance orbiting the giant star HD33844 |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+33844&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2033844%20c/ |
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HD 33844 c
HD 33844 c
HD 33844 c is an exoplanet orbiting the star HD 33844, located about 344.8 light-years (105.7 pc) away from Solar System. Its discovery was publicly announced on 2015.
The host star HD 33844 has apparent magnitude of 22.0, with absolute magnitude of 16.9. It is 1.8 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 4827 with its spectral types of K3
In this planetary system, the extrasolar planet HD 33844 c orbits around the star HD 33844 every 916.0 days with its orbital distance of 2.24 AU ( 335099230.4 km)
(Projected orbit of HD 33844 c around its host star HD 33844)
The Star HD 33844 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.721 AU ( 107933494.3 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.997 AU ( 149192295.5 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.520 AU ( 227336042.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.236 AU ( 334534945.1 km)
Radiation at Planetary Boundary of HD 33844 c : 271.08 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 33844)
Kopparapu Recent Venus for Star HD 33844 distance : 0.787 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 33844 distance : 0.996 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 33844 distance : 0.962 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 33844 distance : 1.056 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 33844 distance : 1.818 AU
Kopparapu Outer Boundary for Early Mars for Star HD 33844 distance : 1.918 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 33844)
Original Kopparapu Recent Venus for Star HD 33844 distance : 0.777 AU
Original Kopparapu Runaway Greenhouse for Star HD 33844 distance : 1.027 AU
Original Kopparapu Moist Greenhouse for Star HD 33844 distance : 1.028 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 33844 distance : 1.848 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 33844 distance : 1.922 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 33844)
(Position in Stellar Map of star HD 33844 and its Exoplanet HD 33844 c)
(Zoomed position in Stellar Map of star HD 33844 and its Exoplanet HD 33844 c (zoom level 3))
(Synthetic Spectrum of star HD 33844*)
*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
