NGC 6309
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Planetary Nebula NGC 6309 |
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Snake |
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Position equinox : J2000.0 |
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| Right ascension | 17h 14m 04.3s |
| declination | -12 ° 54 ′ 38 ″ |
| Appearance | |
| Apparent brightness (visual) | 11.5 likes |
| Apparent brightness (B-band) | 10.8 mag |
| Angular expansion | 0.32 ' |
| Central star | |
| Physical data | |
| history | |
| discovery | Ernst Wilhelm Leberecht Temple |
| Date of discovery | 1876 |
| Catalog names | |
| NGC 6309 • PK 9 + 14.1 • GC 5851 • IRAS 17112-1251 | |
NGC 6309 (other name PK 9 + 14.1 ) is a planetary nebula in the constellation Snake near the celestial equator . It is about 6,500 light years from the Sun , has a circumference of about 0.6 light years, and is expanding at about 25 kilometers per second. Its age is estimated to be 3700 to 4000 years.
The object was discovered by Wilhelm Tempel in 1876 .