Exoplanet

HD 48265 b

Orbiting HD 48265

Overview

HD 48265 b is an exoplanet orbiting the star HD 48265, discovered in 2008 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

484.69

Earth masses

0500 M⊕

Orbital Period

778.5

days

0.1d10,000d

Distance

90.5

parsecs

Nearby10,000 pc

What these measurements mean

These comparisons use the reported catalog values. They are interpretations and calculations, not additional observations.

A year on this world
One orbit lasts about 2.13 Earth years. This comparison uses the reported orbital period. It does not measure the planet's rotation or the length of its day.
What the mass can tell you
M sin i is a lower bound on the true mass because the viewing angle affects the radial-velocity measurement. Do not treat it as an exact mass or use it to claim a measured density.
Work through an exoplanet comparisonArchive measurement definitions

Radius (Earth radii)

Unknown

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

484.69

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Barbato et al. 2018

Orbital Period

778.510+5.380−5.180days

Semi-Major Axis

1.8140+0.0300−0.0310au

M sin(i) (Earth masses)

484.69+15.57−15.89

M sin(i) (Jupiter masses)

1.5250+0.0490−0.0500

Eccentricity

0.2110+0.0890−0.0960

Epoch of Periastron

2456036.70+67.70−36.50days(BJD)

Argument of Periastron

308.3+21.3−23.1deg

Radial Velocity Semi-Amplitude

28.65+1.59−1.57m/s

Distance from Earth

90.5 pc (~295 ly)

Spectral Type

Unknown

Temperature

5733 K

Mass (Solar)

1.31 M☉

Radius (Solar)

1.90 R☉

Luminosity

Unknown

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

100.0074°, -48.5418°

Discovery Method

Radial Velocity

Discovery Year

2008

Data Sources
NASA Exoplanet Archive

Source ID: HD 48265 b

System Context

HD 48265 b orbits HD 48265 and was reported in 2008 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 484.69 Earth masses (M sin i) and an orbital period of 778.51 days.

Catalog data places the system at about 90.5 parsecs from Earth 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 HD 48265

More planets in this system

HD 48265 c