Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
A ♦ JCMT Epsilon Eridani © Joint Astronomy Centre Circumstellar Disk Submillimeter Image Distance from the Sun: 10 light years Epsilon Eridani is surrounded by a dust disk, which might indicate that a Solar System is being formed around this star. Dust disks are much easier to spot than tiny planets, so they are signposts for the presence of planets. The disks also give clues about how planets are formed. ♦ A outreach.jach.hawaii.edu 2 ♦ Gemini HR 8799 & Planets © Gemini Observatory / AURA Exoplanets Infrared Image Distance from the Sun: 130 light years 2 www.gemini.edu ♦ This image is Gemini's historic discovery of the first family of planets around a star. The star is blocked out in this image to show the planets more clearly. The planets are labeled “b”, “c”, and “d”. 3 ♦ Helix Nebula CSO © Ken H. (Taco) Young / Caltech Submillimeter Observatory Planetary Nebula Submillimeter Image Distance from the Sun: 400 light years These color contours show the distribution of carbon monoxide (CO) gas associated with the Helix Nebula taken with one of CSO’s heterodyne receivers, overlaid on an infrared image. Different color contours trace different parts of the cold circumstellar gas with different velocities shed by the dying star. ♦ 3 www.submm.caltech.edu/cso 4 ♦ Helix Nebula CFHT © Canada-France-Hawai i Telescope / Coelum Planetary Nebula Visible Image Distance from the Sun: 400 light years The Helix planetary nebula is an enormous bubble of gas blown by a star which has reached the final stages of its existence. The colors are formed by intense UV light from the star interacting with the gas bubble. The size of the nebula is more than 5000 times the size of our Solar System. ♦ 4 www.cfht.hawaii.edu