Hourglass mist
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Planetary Nebula Hourglass Nebula |
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Fly |
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Position equinox : J2000.0 |
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| Right ascension | 13h 39m 35s |
| declination | -67 ° 22 ′ 51 ″ |
| Appearance | |
| Apparent brightness (visual) | 13 likes |
| Apparent brightness (B-band) | 11.83 mag |
| Angular expansion | 0.4 ′ × 0.4 ′ |
| Central star | |
| Physical data | |
| Redshift | −0.000226 |
| Radial velocity | −67.8 km / s |
| distance | 8000 ly (2500 pc ) |
| history | |
| discovery | MW Mayall, Cannon |
| Date of discovery | 1940 |
| Catalog names | |
| PK 307-04 1 • ESO 97-PN1 • Hen 2-95 • PN G307.5-04.9 • MyCn18 • Sa 2-96 • RCW 77 • IRAS 13359-6707 | |
The Hourglass Nebula , also Hourglass Nebula or MyCn 18 called, is a planetary nebula in the constellation Fly the southern sky and is about 8,000 light years from the earth away. The name MyCn 18 comes from Mayall and Cannon in 1940.
Web links
- Hubble Space Telescope
- Astronews
- ESA: Space Science: The Hourglass Nebula (MYCN-18)
- The Encyclopedia of Astrobiology, Astronomie and Spaceflight
- The Astrophysical Journal
- astronews.com: Picture of the day February 5, 2009