IC 5148
Planetary nebula in the constellation of Grus
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Nicknamed the Spare Tyre Nebula,[3] IC 5148 is a planetary nebula located around 1 degree west of Lambda Gruis in the constellation of Grus (The Crane).[4] It was discovered by Australian amateur astronomer Walter Gale in 1894. Around 3000 light-years distant, it is expanding at a rate of 50 kilometres a second, one of the fastest of all planetary nebulae.[3]
| Emission nebula | |
|---|---|
| Planetary nebula | |
 IC 5148, nicknamed the Spare Tyre Nebula, taken by the ESO Faint Object Spectrograph and Camera (EFOSC2) on the New Technology Telescope.[1] | |
| Observation data: J2000 epoch | |
| Right ascension | 21h 59m 35.2s[2] |
| Declination | −39° 23′ 08″[2] |
| Distance | 3000 light years[1] ly |
| Apparent magnitude (V) | 16.5[2] |
| Apparent dimensions (V) | 2 ′ x 2 ′[2] |
| Constellation | Grus |
| Designations | IC 5150, PK 002-52 1, PSCz P21565-3937, ESO 344-5, IRAS 21565-3937, PN G002.7-52.4 |
The central star of the planetary nebula has a spectral type of hgO(H).[5]
