91 Aqr b
Orbiting 91 Aqr
91 Aqr b is an exoplanet orbiting the star 91 Aqr, discovered in 2013 using the Radial Velocity method.
Minimum Mass (M sin i)
1017.00
Earth masses
Orbital Period
181.4
days
Distance
44.0
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
1017.00
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Mitchell et al. 2013
Orbital Period
181.400+0.100−0.100days
Semi-Major Axis
0.7000au
M sin(i) (Earth masses)
1017.00
M sin(i) (Jupiter masses)
3.2000
Eccentricity
0.0270+0.0260−0.0260
Epoch of Periastron
2453472.10+24.50−24.50days
Argument of Periastron
177.3+0.8−0.8deg
Radial Velocity Semi-Amplitude
91.50m/s
Distance from Earth
44.0 pc (~144 ly)
Spectral Type
K0 III
Temperature
4665 K
Mass (Solar)
1.40 M☉
Radius (Solar)
11.00 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
3
Coordinates (RA, Dec)
348.9745°, -9.0878°
Discovery Method
Radial Velocity
Discovery Year
2013
Source ID: 91 Aqr b
91 Aqr b orbits 91 Aqr and was reported in 2013 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 1,017 Earth masses (M sin i) and an orbital period of 181.4 days.
Catalog data places the system at about 44 parsecs from Earth, a host star classified as K0 III, and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open 91 Aqr