Thor’s Helmet, NGC 2359, IC 468

[NGC 2359 (IC 468)]

About this image

This image was obtained with the wide-field view of the Mosaic camera on the KPNO 0.9m-meter telescope at Kitt Peak National Observatory. Informally known as ‘Thor’s Helmet’, NGC 2359 (IC 468) is a giant bubble that is being blown off of the Wolf-Rayet star HD 56925. Wolf-Rayet stars are extremely massive stars that are very hot and luminous. Their intense energy blows off the outer layers, causing the bubble shape seen here. The complex shape of the bubble is due to its interaction with dust and gas in which the star is embedded. The image was generated with observations in Hydrogen alpha (orange), Oxygen [OIII] (blue) and Sulfur [SII] (violet) filters. In this image, North is left, East is down.

More: nebulae page, emission nebulae page, stars page.

Minimum credit line: T.A. Rector (University of Alaska Anchorage) and NOAO/AURA/NSF

Downloadable versions:
500 x 578 285 KB color JPG (on this page)
1000 x 1157 1007 KB color JPG
2000 x 2313 4.02 MB color JPG
2350 x 2718 3.95 MB color JPG
2350 x 2718 17.48 MB color TIFF
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