NGC2359 - Thor's Helmet
narrowband nebulaeSimilar to the Crescent Nebula, at the heart of NGC2359 is a Wolf-Reyet star, a massive and hot star shedding material that happens to resemble Thor’s Helmet. Captured with a QSI683 camera, Astrodon SII / Ha / OIII filters, and roughly 12 15-minute exposures of each filter.
Resolution ........ 0.572 arcsec/pix Rotation .......... -171.105 deg Focal ............. 1948.93 mm Pixel size ........ 5.40 um Field of view ..... 29' 50.0" x 21' 51.6" Image center ...... RA: 07 18 34.724 Dec: -13 12 39.87
Updated