IC 418

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IC 418
Nebula
Spirograph Nebula - Hubble 1999.jpg
Observation data: J2000 epoch
Right ascension 05h 27m 28.2037s[1]
Declination−12° 41′ 50.265″[1]
Distance3.6 ± 1.0 kly (1100 ± 300 pc)[2] ly
Apparent magnitude (V)9.6[1]
Apparent dimensions (V)3.5″x5.5"/11"x14"/150"/220"x250"[3]
ConstellationLepus
Physical characteristics
Radius0.15 ly
Absolute magnitude (V)-
Notable features-
DesignationsSpirograph Nebula
See also: Lists of nebulae

IC 418, also known as Spirograph Nebula, is a planetary nebula in the Milky Way Galaxy.

The name derives from the intricate pattern of the nebula, which resembles a pattern which can be created using the Spirograph, a toy that produces geometric patterns (specifically, hypotrochoids and epitrochoids) on paper.

IC 418 lies about 3600 light-years away and spans 0.3 light-years across.

References[edit]

  1. ^ a b c "IC 418". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2006-12-22.
  2. ^ "Expansion Parallax of the Planetary Nebula IC 418". Paper on IC 418. arXiv:0905.0021. Bibcode:2009AJ....138...46G. doi:10.1088/0004-6256/138/1/46. Missing or empty |url= (help); |access-date= requires |url= (help)
  3. ^ Ramos-Larios, G.; et al. (2012). "Discovery of multiple shells around the planetary nebula IC 418". Monthly Notices of the Royal Astronomical Society. 423 (4): 3753–3760. arXiv:1204.5816. Bibcode:2012MNRAS.423.3753R. doi:10.1111/j.1365-2966.2012.21165.x.

External links[edit]