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Exoplanet Name : |
DMPP-4 b |
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Alternate Name : |
HD 184960 b |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
0.2034 |
(Rjup) |
2.2800 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0365 |
(Mjup) |
11.6047 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0485 |
(AU) |
0.0485 |
(AU Est.) |
|
Eccentricity : |
0.0670 |
|
Orbital Period(Yrs) |
0.0093 |
|
Orbital Period(Observed/Estimated) |
3.40 |
(Days Obs.) |
3.49 |
(Days Est.) |
|
Surface Gravity (G Earth) |
2.2323 |
|
Star Radiation at Atmospheric Boundary: |
1663651.3 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1602.9 |
(K) |
|
Blackbody T 0.3(K) |
1505.3 |
(K) |
|
Blackbody T 0.7(K) |
1217.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1906.2 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1790.1 |
(K) |
|
Size Class: |
sub-Neptune-size |
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Mass Class: |
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|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
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Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
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Habitability by Kopparapu: |
Not habitable |
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Star Name : |
DMPP-4 |
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Alternate Name : |
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Star Distance(LY) : |
82.9 |
|
Stellar Radius(Rsun) : |
1.4 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.3 |
(Msun Estimated) |
|
Star Age : |
2.1 |
(GY) |
|
Temperature : |
6400 |
(K) |
|
Spectral type : |
F5-F8V |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
|
Metalicity : |
-0.0 |
|
Absolute Magnitude: |
3.7 |
|
Apparent Magnitude: |
5.7 |
|
Right Ascension(RA) |
293.5833 |
|
Declination (DEC) |
51.2367 |
|
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 |
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|
SIMBAD LINK |
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Open Exoplanet Database Link |
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DMPP-4 b
DMPP-4 b
DMPP-4 b is an exoplanet orbiting the star DMPP-4, located about 82.9 light-years (25.4 pc) away from Solar System. Its discovery was publicly announced on 2023.
The host star DMPP-4 has apparent magnitude of 5.7, with absolute magnitude of 3.7. It is 1.2 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6400 with its spectral types of F5-F8V
In this planetary system, the extrasolar planet DMPP-4 b orbits around the star DMPP-4 every 3.4 days with its orbital distance of 0.05 AU ( 7259984.7 km)
(Projected orbit of DMPP-4 b around its host star DMPP-4)
The Star DMPP-4 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.225 AU ( 183188053.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.693 AU ( 253213762.0 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.579 AU ( 385841737.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 3.795 AU ( 567783019.0 km)
Radiation at Planetary Boundary of DMPP-4 b : 1663651.27 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star DMPP-4)
Kopparapu Recent Venus for Star DMPP-4 distance : 1.222 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star DMPP-4 distance : 1.548 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star DMPP-4 distance : 1.495 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star DMPP-4 distance : 1.638 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star DMPP-4 distance : 2.697 AU
Kopparapu Outer Boundary for Early Mars for Star DMPP-4 distance : 2.845 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star DMPP-4)
Original Kopparapu Recent Venus for Star DMPP-4 distance : 1.240 AU
Original Kopparapu Runaway Greenhouse for Star DMPP-4 distance : 1.587 AU
Original Kopparapu Moist Greenhouse for Star DMPP-4 distance : 1.641 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star DMPP-4 distance : 2.746 AU
Original Kopparapu Outer Boundary for Early Mars for Star DMPP-4 distance : 2.856 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star DMPP-4)
(Position in Stellar Map of star DMPP-4 and its Exoplanet DMPP-4 b)
(Zoomed position in Stellar Map of star DMPP-4 and its Exoplanet DMPP-4 b (zoom level 3))
(Synthetic Spectrum of star DMPP-4*)
*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
