NGC 6751
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Planetary nebula NGC 6751 / NGC 6748 |
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Eagle |
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Position equinox : J2000.0 |
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| Right ascension | 19h 05m 55.5s |
| declination | -05 ° 59 ′ 32 ″ |
| Appearance | |
| Apparent brightness (visual) | 11.9 likes |
| Apparent brightness (B-band) | 12.5 mag |
| Angular expansion | 0.43 ′ × 0.43 ′ |
| Central star | |
| designation | HD 177656 |
| Physical data | |
| Radial velocity | -43 km / s |
| distance | 6500 ly |
| diameter | 0.8 ly |
| history | |
| discovery | Albert Marth Edouard Stephan |
| Date of discovery | July 20, 1863 July 17, 1871 |
| Catalog names | |
| NGC 6748, NGC 6751 • PK 29-5.1 • GC 5940 • CS = 13.9 • Marth 397 • Stephan XII | |
NGC 6751 = 6748 is a planetary nebula near Lambda Aquilae . NGC 6751 has an apparent magnitude of 11.9 mag. The nebula comes from the shed shell of a star at the end of its life. The expansion speed is around 400 km / s. NGC 6751 was discovered on July 20, 1863 by the German astronomer Albert Marth . Due to incorrectly recorded data, the observation by Edouard Stephan was added as a new object in the NGC catalog with the designation NGC 6748 on July 17, 1871 . However, the latest findings show that the object is identical to NGC object 6751.
Web links
- HST description
- Hubble Heritage Project
- GoBlack
- Celebrating Hubble With NGC 6751 - Astronomy Picture of the Day of April 16, 2005.
- astronews.com: The beautiful death of a star