Exoplanet

HIP 74890 b

Orbiting HIP 74890

Overview

HIP 74890 b is an exoplanet orbiting the star HIP 74890, discovered in 2016 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

762.79

Earth masses

0500 M⊕

Orbital Period

822.3

days

0.1d10,000d

Distance

78.7

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

Minimum Mass, M sin(i) (Earth masses)

762.79

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Jones et al. 2016

Orbital Period

822.300+16.80016.800days

Semi-Major Axis

2.1000+0.09000.0900au

M sin(i) (Earth masses)

762.79+95.3595.35

M sin(i) (Jupiter masses)

2.4000+0.30000.3000

Eccentricity

0.0700+0.07000.0700

Epoch of Periastron

2459820.40+379.80379.80days(JD)

Argument of Periastron

181.9+93.993.9deg

Radial Velocity Semi-Amplitude

36.50+2.702.70m/s

Distance from Earth

78.7 pc (~257 ly)

Spectral Type

K1 III

Temperature

4850 K

Mass (Solar)

1.74 M☉

Radius (Solar)

5.77 R☉

Luminosity

1.21 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

229.5715°, -41.4211°

Discovery Method

Radial Velocity

Discovery Year

2016

Data Sources

Source ID: HIP 74890 b

System Context

HIP 74890 b orbits HIP 74890 and was reported in 2016 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 762.79 Earth masses (M sin i) and an orbital period of 822.3 days.

Catalog data places the system at about 78.7 parsecs from Earth, a host star classified as K1 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 HIP 74890