NGC 6751
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| NGC 6751 | |
 A Hubble Space Telescope (HST) image of NGC 6751. Credit: HST/NASA/ESA. |
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| Observation data (Epoch J2000.0) |
|
|---|---|
| Right ascension | 19h 5m 55.6s[1] |
| Declination | -5° 59′ 32.9″[1] |
| Apparent magnitude (V) | 15.8[1] |
| Constellation | Aquila |
| Physical characteristics | |
| See also: Planetary nebula, Lists of nebulae | |
NGC 6751 is a planetary nebula in the constellation Aquila. The nebula is estimated to be around 0.8 light-years in diameter. The star at the centre of the nebula has a surface temperature of approximately 140,000 K. It has been calculated to be roughly 6,500 light-years away from Earth. It was formed when a star collapsed and threw off its outer layer of gas several thousand years ago. The coloring of it as seen in the picture on the right is only visible as ultraviolet light, which humans cannot naturally see.
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