PIA13034: Portrait of Distant Planets


Portrait of Distant Planets

Caption:

annotated image for PIA13034
Click on the image for larger annotated version

This image shows the light from three planets orbiting a star 120 light-years away. The planets' star, called HR8799, is located at the spot marked with an "X."

This picture was taken using a small, 1.5-meter (4.9-foot) portion of the Palomar Observatory's Hale Telescope, north of San Diego, Calif. This is the first time a picture of planets beyond our solar system has been captured using a telescope with a modest-sized mirror -- previous images were taken using larger telescopes.

The three planets, called HR8799b, c and d, are thought to be gas giants like Jupiter, but more massive. They orbit their host star at roughly 24, 38 and 68 times the distance between our Earth and sun, respectively (Jupiter resides at about 5 times the Earth-sun distance).

Cataloging Keywords:

Name Value Additional Values
Target HR 8799
System HR 8799
Target Type Exoplanet
Mission Palomar Observatory
Instrument Host Palomar Observatory
Host Type Ground-Based Telescope
Instrument Hale Telescope
Detector
Extra Keywords Color, Orbit
Acquisition Date
Release Date 2010-04-14
Date in Caption
Image Credit NASA/JPL-Caltech/Palomar Observatory
Source photojournal.jpl.nasa.gov/catalog/PIA13034
Identifier PIA13034