IC 5148 explained

Nicknamed the Spare-Tyre Nebula,[1] IC 5148 is a planetary nebula located around 1 degree west of Lambda Gruis in the constellation of Grus (The Crane).[2] 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.[1]

The central star of the planetary nebula has a spectral type of hgO(H).[3]

Notes and References

  1. Web site: From Cosmic Spare Tyre to Ethereal Blossom. ESO. 2012. Picture of the Week. European Southern Observatory. 6 February 2014.
  2. Web site: Streicher . Magda . December 2010 . Grus—An Elegant Starry Bird . The Astronomical Society of Southern Africa . Deepsky Delights . 56–59 . 7 February 2014.
  3. 10.1051/0004-6361/202141916. Planetary nebulae in Gaia EDR3: Central star identification, properties, and binarity. 2021. González-Santamaría. I.. Manteiga. M.. Manchado. A.. Ulla. A.. Dafonte. C.. López Varela. P.. Astronomy & Astrophysics. 656. A51. 2109.12114. 2021A&A...656A..51G. 237940344.

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