NASA's Hubble Space Telescope captured this sharpest view yet of the most famous of all planetary nebulae: the Ring Nebula (M57). The colors are approximately true colors.
Add image to your album
Email this page Post this page to your Facebook wall Tweet this page

Looking Down a Barrel of Gas at a Doomed Star

The NASA Hubble Space Telescope has captured the sharpest view yet of the most famous of all planetary nebulae: the Ring Nebula (M57). In this October 1998 image, the telescope has looked down a barrel of gas cast off by a dying star thousands of years ago. This photo reveals elongated dark clumps of material embedded in the gas at the edge of the nebula; the dying central star floating in a blue haze of hot gas. The nebula is about a light-year in diameter and is located some 2,000 light-years from Earth in the direction of the constellation Lyra.

The colors are approximately true colors. The color image was assembled from three black-and-white photos taken through different color filters with the Hubble telescope's Wide Field Planetary Camera 2. Blue isolates emission from very hot helium, which is located primarily close to the hot central star. Green represents ionized oxygen, which is located farther from the star. Red shows ionized nitrogen, which is radiated from the coolest gas, located farthest from the star. The gradations of color illustrate how the gas glows because it is bathed in ultraviolet radiation from the remnant central star, whose surface temperature is a white-hot 216,000 degrees Fahrenheit (120,000 degrees Celsius).

Image details

ID#:
PIA14443

Date added:
1999-01-06

Mission:
Hubble Space Telescope

Instruments:
Wide Field Planetary Camera 2

Rating:



Views:
1,101

Full-Res TIFF:
PIA14443.tif (4.53 MB)

Full-Res JPG:
PIA14443.jpg (0.07 MB)

Image credit:
NASA/JPL-Caltech/ESA, the Hubble Heritage Team (STScI/AURA)