NN Ser d
Orbiting NN Ser
NN Ser d is an exoplanet orbiting the star NN Ser, discovered in 2010 using the Eclipse Timing Variations method.
Minimum Mass (M sin i)
696.04
Earth masses
Orbital Period
2880.0
days
Distance
515.8
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
696.04
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Özdönmez et al. 2023
Orbital Period
2880.000+51.000−51.000days
M sin(i) (Earth masses)
696.04+155.74−155.74
M sin(i) (Jupiter masses)
2.1900+0.4900−0.4900
Eccentricity
0.2400+0.0300−0.0300
Epoch of Periastron
2454563.00+58.00−58.00days(BJD)
Argument of Periastron
86.7+0.6−0.6deg
Distance from Earth
515.8 pc (~1682 ly)
Spectral Type
WD
Temperature
Unknown
Mass (Solar)
0.54 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
2
Stars in System
2
Coordinates (RA, Dec)
238.2337°, 12.9121°
Discovery Method
Eclipse Timing Variations
Discovery Year
2010
Source ID: NN Ser d
NN Ser d orbits NN Ser and was reported in 2010 and was detected with the Eclipse Timing Variations method.
Published measurements list a minimum mass of 696.04 Earth masses (M sin i) and an orbital period of 2,880 days.
Catalog data places the system at about 515.8 parsecs from Earth, a host star classified as WD, and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open NN SerMore planets in this system