Archivo de imágenes de Hubble
La Nebulosa del Collar
A giant cosmic necklace glows brightly in this NASA Hubble Space Telescope image.The object, aptly named the Necklace Nebula, is a recently discovered planetary nebula, the glowing remains of an ordinary, Sun-like star. The nebula consists of a bright ring, measuring 12 trillion...
- Fecha
- Jan 1, 2011
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2011-24-2886-image
A giant cosmic necklace glows brightly in this NASA Hubble Space Telescope image.
The object, aptly named the Necklace Nebula, is a recently discovered planetary nebula, the glowing remains of an ordinary, Sun-like star. The nebula consists of a bright ring, measuring 12 trillion miles across, dotted with dense, bright knots of gas that resemble diamonds in a necklace. The knots glow brightly due to absorption of ultraviolet light from the central stars.
A pair of stars orbiting very close together produced the nebula, also called PN G054.2-03.4. About 10,000 years ago one of the aging stars ballooned to the point where it enveloped its companion star. This caused the larger star to spin so fast that much of its gaseous envelope expanded into space. Due to centrifugal force, most of the gas escaped along the star's equator, producing a dense ring. The embedded bright knots are the densest gas clumps in the ring.
The stars are furiously whirling around each other, completing an orbit in a little more than a day. (For comparison, Mercury, the closest planet to the Sun, takes 88 days to orbit the Sun.)
The Necklace Nebula is located 15,000 light-years away in the constellation Sagitta (the Arrow). In this composite image, taken on July 2, 2011, Hubble's Wide Field Camera 3 captured the glow of hydrogen (blue), oxygen (green), and nitrogen (red).
Credits
NASA, ESA, and the Hubble Heritage Team (STScI/AURA)Detalles de la imagen
| About The Object | |
|---|---|
| Object Name | Necklace Nebula, PN G054.2-03.4 |
| Object Description | Planetary Nebula |
| R.A. Position | 19h 43m 59.49s |
| Dec. Position | 17° 9' 1.08" |
| Constellation | Sagitta |
| Distance | About 15,000 light-years or 4,600 parsecs |
| About The Data | |
| Data Description | This image was created from HST data from proposal : K. Noll, Z. Levay, M. Livio, C. Christian, H. Bond, L. Frattare, M. Mutchler, T. Borders, and W. Januszewski (Hubble Heritage Team/STScI). |
| Instrument | HST>WFC3/UVIS |
| Exposure Dates | July 2, 2011, Exposure Time: 44 minutes |
| Filters | F502N ([O III]), F438W (B), F656N (H-alpha), F555W (V), F658N ([N II]), and F814W (I) |
| About The Image | |
| Color Info | This image is a composite of many separate exposures made by the WFC3/UVIS instrument on the Hubble Space Telescope using six different filters, three broadband filters, and three narrowband filters. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F502N ([O III]) + F438W (B) Green: F656N (H-alpha) + F555W (V) Red: F658N ([N II]) + F814W (I) |
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La imagen y el material de referencia se acreditan al archivo oficial de la misión enlazado a continuación.
Ver en NASA.gov