Planetary Nebula NGC 2371

Probing a glowing bubble of gas and dust encircling a dying star, the NASA/ESA Hubble Space Telescope reveals a wealth of previously unseen structures.

The object, called NGC 2371, is a planetary nebula, the glowing remains of a Sun-like star. The remnant star visible at the centre of NGC 2371 is the super-hot core of the former red giant, now stripped of its outer layers. Its surface temperature is a scorching 240,000 degrees Fahrenheit. NGC 2371 lies about 4,300 light-years away in the constellation Gemini.

The Hubble image reveals several remarkable features, most notably the prominent pink clouds lying on opposite sides of the central star. This colour indicates that they are relatively cool and dense, compared to the rest of the gas in the nebula.

Also striking are the numerous, very small pink dots, marking relatively dense and small knots of gas, which also lie on diametrically opposite sides of the star. These features appear to represent the ejection of gas from the star along a specific direction. The jet's direction has changed with time over the past few thousand years. The reason for this behavior is not well understood, but might be related to the possible presence of a second star orbiting the visible central star.

A planetary nebula is an expanding cloud of gas ejected from a star that is nearing the end of its life. The nebula glows because of ultraviolet radiation from the hot remnant star at its centre. In only a few thousand years the nebula will dissipate into space. The central star will then gradually cool down, eventually becoming a white dwarf, the final stage of evolution for nearly all stars.

The Hubble picture of NGC 2371 is a false-color image, prepared from exposures taken through filters that detect light from sulfur and nitrogen (red), hydrogen (green), and oxygen (blue). These images were taken with Hubble's Wide Field Planetary Camera 2 in November 2007, as part of the Hubble Heritage program.

Credit:

NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

About the Image

NASA press release
NASA caption
Id:opo0813a
Type:Observation
Release date:4 March 2008, 15:00
Size:1510 x 2195 px

About the Object

Name:NGC 2371
Type:• Milky Way : Nebula : Type : Planetary
• X - Nebulae Images/Videos
Distance:4500 light years

Colours & filters

BandWavelengthTelescope
Optical
Oiii
502 nm Hubble Space Telescope
WFPC2
Optical
H-alpha
656 nm Hubble Space Telescope
WFPC2
Optical
Sii
673 nm Hubble Space Telescope
WFPC2
Optical
Nii
658 nm Hubble Space Telescope
WFPC2

Image Formats

Large JPEG
1014.3 KB
Screensize JPEG
436.0 KB

Zoomable


Wallpapers

1024x768
328.0 KB
1280x1024
518.4 KB
1600x1200
704.2 KB

Also see our