|
Exoplanet Name : |
NN Ser (AB) d |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
2.2800 |
(Mjup) |
724.8986 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
3.3900 |
(AU) |
3.3900 |
(AU Est.) |
|
Eccentricity : |
0.2000 |
|
Orbital Period(Yrs) |
7.7479 |
|
Orbital Period(Observed/Estimated) |
2830.00 |
(Days Obs.) |
2836.44 |
(Days Est.) |
|
Surface Gravity (G Earth) |
7.0006 |
|
Star Radiation at Atmospheric Boundary: |
32.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
106.2 |
(K) |
|
Blackbody T 0.3(K) |
99.7 |
(K) |
|
Blackbody T 0.7(K) |
80.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
126.3 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
118.6 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Pulsar |
|
Mass Detection : |
|
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
NN Ser (AB) |
|
Alternate Name : |
|
|
Star Distance(LY) : |
1630.8 |
|
Stellar Radius(Rsun) : |
0.6 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
0.6 |
(Msun Measured) |
0.6 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5500 |
(K) |
|
Spectral type : |
WD+M |
|
UV portion[%]: |
6.9 |
|
Visible portion[%]: |
43.2 |
|
IR portion[%]: |
49.9 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
8.1 |
|
Apparent Magnitude: |
16.6 |
|
Right Ascension(RA) |
238.2339 |
|
Declination (DEC) |
12.9131 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
"Klaus Beuermann, Stefan Dreizler, Frederic V. Hessman" |
|
Discovery Paper - Title |
The quest for companions to post-common envelope binaries IV: The 2:1 mean-motion resonance of the planets orbiting NN Serpentis |
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NN+Ser+&submit=SIMBAD+search0 |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/NN%20Ser%20%28AB%29%20d/ |
_d_CSun.png) |
_d_CJup.png) |
_d_CNep.png) |
_d_CEar.png) |
/
NN Ser (AB) d
NN Ser (AB) d
NN Ser (AB) d is an exoplanet orbiting the star NN Ser (AB), located about 1630.8 light-years (500.0 pc) away from Solar System. Its discovery was publicly announced on 2009.
The host star NN Ser (AB) has apparent magnitude of 16.6, with absolute magnitude of 8.1. It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of WD+M
In this planetary system, the extrasolar planet NN Ser (AB) d orbits around the star NN Ser (AB) every 2830.0 days with its orbital distance of 3.39 AU ( 507136781.7 km)
(Projected orbit of NN Ser (AB) d around its host star NN Ser (AB))
_d_Orb.png)
The Star NN Ser (AB) 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.375 AU ( 56156150.6 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.519 AU ( 77622475.5 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.791 AU ( 118279474.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.163 AU ( 174053428.7 km)
Radiation at Planetary Boundary of NN Ser (AB) d : 32.04 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star NN Ser (AB))
_d_OrbH.png)
Kopparapu Recent Venus for Star NN Ser (AB) distance : 0.395 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star NN Ser (AB) distance : 0.501 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star NN Ser (AB) distance : 0.484 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star NN Ser (AB) distance : 0.530 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star NN Ser (AB) distance : 0.892 AU
Kopparapu Outer Boundary for Early Mars for Star NN Ser (AB) distance : 0.940 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star NN Ser (AB))
_d_OrbK.png)
Original Kopparapu Recent Venus for Star NN Ser (AB) distance : 0.394 AU
Original Kopparapu Runaway Greenhouse for Star NN Ser (AB) distance : 0.515 AU
Original Kopparapu Moist Greenhouse for Star NN Ser (AB) distance : 0.521 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star NN Ser (AB) distance : 0.907 AU
Original Kopparapu Outer Boundary for Early Mars for Star NN Ser (AB) distance : 0.943 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star NN Ser (AB))
_d_OrbKO.png)
(Position in Stellar Map of star NN Ser (AB) and its Exoplanet NN Ser (AB) d)
_d_STZ0.png)
(Zoomed position in Stellar Map of star NN Ser (AB) and its Exoplanet NN Ser (AB) d (zoom level 3))
_d_STZ3.png)
(Synthetic Spectrum of star NN Ser (AB)*)
_d_Spc.png)
*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
