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This close-up, visible-light view by NASA's Hubble Space Telescope reveals new details of the Ring Nebula.The object is tilted toward Earth so that astronomers see the ring face-on. The Hubble observations reveal that the nebula's shape is more complicated than astronomers though...
- Fecha
- Jan 1, 2013
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2013-13-3170-image
This close-up, visible-light view by NASA's Hubble Space Telescope reveals new details of the Ring Nebula.
The object is tilted toward Earth so that astronomers see the ring face-on. The Hubble observations reveal that the nebula's shape is more complicated than astronomers thought. The blue gas in the nebula's center is actually a football-shaped structure that pierces the red doughnut-shaped material. Hubble also uncovers the detailed structure of the dark, irregular knots of dense gas embedded along the inner rim of the ring. The knots look like spokes in a bicycle. The Hubble images have allowed the research team to match up the knots with the spikes of light around the bright, main ring, which are a shadow effect.
The Ring Nebula is a well-known planetary nebula, the glowing remains of a Sun-like star. The tiny white dot in the center of the nebula is the star's hot core, called a white dwarf.
The nebula is about 2,000 light-years away in the constellation Lyra. The structure measures roughly one light-year across.
The Hubble observations were taken Sept. 19, 2011, by the Wide Field Camera 3. In the image, the deep blue color in the center represents helium; the cyan color of the inner ring is the glow of hydrogen and oxygen; and the reddish color of the outer ring is from nitrogen and sulfur.
Credits
NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble CollaborationDetalles de la imagen
| About The Object | |
|---|---|
| Object Name | Ring Nebula, M57, NGC 6720 |
| Object Description | Planetary Nebula |
| R.A. Position | 18h 53m 35.07s |
| Dec. Position | 33° 1' 45.03" |
| Constellation | Lyra |
| Distance | 2,300 light-years (700 parsecs) |
| About The Data | |
| Data Description | The image was created from Hubble data from proposal : C. R. O'Dell (Vanderbilt University), G. Ferland (University of Kentucky), and W. Henney and M. Peimbert (UNAM). |
| Instrument | HST>WFC3/UVIS |
| Exposure Dates | September 19, 2011 |
| Filters | F469N (He II), F487N (H-beta), F502N ([O III]), F645N (continuum), F656N (H-alpha), F658N ([N II]), and F673N ([S II]) |
| About The Image | |
| Color Info | Blue: F469N (He II) + F487N (H-beta) Blue/green: F502N ([O III]) Green: F645N (continuum) Green/yellow: F656N (H-alpha) Red: F658N ([N II]) Orange: F673N ([S II]) |
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Ver en NASA.gov