NGC 6537
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Planetary nebula data from NGC 6537 |
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Sagittarius |
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Position equinox : J2000.0 |
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| Right ascension | 18h 05m 13.1s |
| declination | -19 ° 50 ′ 35 ″ |
| Appearance | |
| Apparent brightness (visual) | 11.6 mag |
| Apparent brightness (B-band) | 12.5 mag |
| Angular expansion | 0.17 ′ × 0.17 ′ |
| Central star | |
| designation | HD 312582 |
| Apparent brightness | 11.8 mag |
| Spectral class | P |
| Physical data | |
| Radial velocity | −17.3 km / s |
| distance | 4000 ly |
| history | |
| discovery | Edward Charles Pickering |
| Date of discovery | July 15, 1882 |
| Catalog names | |
| NGC 6537 • PK 10 + 0.1 • ESO 590-PN1 • CS = 19.5 | |
NGC 6537 , also known as the Red Spider Nebula (English red spider ) is a planetary nebula in the constellation Sagittarius . The white dwarf in the center of the nebula , the remnant of an original star, generates a wind of around 10,000 Kelvin that blows at speeds of 2,000 to 4,500 kilometers per second . The star is probably one of the hottest known.
The planetary nebula NGC 6537 was discovered on July 15, 1882 by the American astronomer Edward Charles Pickering .
Web links
Commons : NGC 6537 - collection of images, videos, and audio files
- Spacetelescope.org about the Red Spider Nebula with shots (English)
- Article at Space.com (English)
- GoBlack