Skip to content

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Menu

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Acquiring mission data

Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

This is an independent informational project and is not affiliated with, endorsed by, or sponsored by NASA, ESA, JAXA, Roscosmos, CNSA, ISRO, CSA, or any other space agency. Agency names, logos, and other marks are used for identification where permitted by their respective usage policies.

A passion project from the team behind Apex Rental Pro.

HR 8799 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HR 8799 c

Confirmed exoplanet · Gas Giant

HR 8799 c

Orbiting HR 8799

Discovered in 2008 using Imaging. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

HR 8799 System (NIRCam image), an official ESA/Webb exoplanet image or artist concept — Sourced object or system artworkNASA, ESA, CSA, STScI, W. Balmer (JHU), L. Pueyo (STScI), M. Perrin (STScI)

Discovery: 2,008
Method: Imaging
Radius: 13 R⊕
Mass: 3,000 M⊕
Orbit: 69,000 days
Distance: 41.2441 pc

Planet profile

Orbit and physical properties

Orbital period: 69,000 days
Semi-major axis: 38 AU
Eccentricity: 0.5
Radius: 13 Earth radii
Mass: 3,000 Earth masses
Mass provenance: Mass
Density: 7.5 g/cm³
Equilibrium temperature: 1,200 K
Insolation: 0.0034 Earth flux

Host system

Star and system properties

Host star: HR 8799
Stars in system: 1
Known planets in system: 4
Spectral type: A5 V
Stellar temperature: 7,204.58 K
Stellar radius: 1.49338 R☉
Stellar mass: 1.5 M☉
Stellar metallicity: -0.47 dex
Stellar age: 0.06 Gyr
Distance: 41.2441 parsecs
Right ascension: 23h07m28.84s
Declination: +21d08m02.54s

Discovery

Detection and provenance

Discovery method: Imaging
Discovery year: 2,008
Publication date: 2008-11
Discovery locale: Ground
Facility: Gemini Observatory
Telescope: 8.19 m Gemini North Telescope
Instrument: NIRI Camera
NASA Exoplanet Archive: Open composite record ↗

Community discussion

Comments 0

No comments yet. The airlock is open.

Sign in or create an account to comment and vote.