IC443 and Sharpless 249, Bruce
IC443 and Sharpless 249, Bruce

Equipment

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Description

In the lower right portion of this image lies IC 443 or the Jellyfish Nebula. It is the beautiful remnant of a supernova explosion thought to have occurred approximately 35,000 years ago. A neutron star lies buried deeply within this nebula and is all that remains of the original star.

To its left in this image is an extremely large emission nebula cataloged as Sharpless 249. Within this nebula – visible near the top and left of center is the recently discovered planetary nebula Howell – Crisp 1 (HoCr1). In this image it is not much bigger than some of the stars and appears as a faint grey fuzzy spot.

The two brightest stars in this image are Mu and Eta Geminorum.

This is a two panel mosaic taken through a William Optics Star71 and a 3nm hydrogen alpha filter on 1/18, 2/9 & 2/19/2015 - mounted on an AP Mach1. Total exposure 5h 40m.

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IC443 and Sharpless 249, Bruce