Category Archives: Nebula

Images of emission, reflection and dark nebula as well as supernova remnants

IC 1805 the Heart Nebula in Hubble Palette SHO

Meet IC 1805, the Heart Nebula.  This is an image I’ve been working on for a while in the Fall here. Mostly due to weather not cooperating.   I was able to gather 21 hours of data (Hubble palette, Ha, OIII and SII narrowband) over a few clear nights in October 2019.  I processed this image, […]

NGC 281 Pacman Nebula in Hubble Palette SHO

NGC 281 pacman nebula SHO

Meet NGC 281, also known as the Pacman Nebula. Can you spot the pacman? NGC 281 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia which is rising in the NE during Fall months and high overhead in the Winter. Cassiopeia is part of the Milky […]

NGC 7822 Nebula in Hubble Palette SHO

Meet NGC 7822. This is 29 hours of data I collected over 6 clear nights. This is a Hubble palette image (false colour). NGC 7822 is a young, star-forming region in the constellation of Cepheus It lies about 3000 light years away above our galaxy. Inside this region is a supernova remnant – which indicates […]

26 hours of data on the Iris Nebula

Iris nebula in Cepheus 26 hours of data. By Shawn Nielsen. VisibleDark.ca

Meet the Iris Nebula in Cepheus. Also known as NGC 7023. This image represents 26 hours of data taken over 7 clear nights in May and June 2019.  The Iris Nebula is approximately 1,300 light years distance from Earth. It resides in the constellation of Cepheus from our perspective. NGC 7023 is actually the cluster […]

Meet M97 and M108, the Owl and the Surfboard

sLRGB-M97-M108-Shawn_Nielsen-2019

Here’s an interesting pairing in the night sky. Meet M97 planetary nebula and M108 spiral galaxy from the Messier Catalog of deep sky objects. While they look side by side from our perspective here on Earth, M97 is actually 2,600 light years distant while the Surfboard galaxy M108 is a whopping 45 million light years away! Both […]

Return to the Horsehead and Flame Nebulae

Horsehead and Flame Nebulae

It’s been quite some time since I imaged this region of space. Nearly 10 years much to my surprise as I thought about it. Returning once again to the Horsehead and Flame Nebulae, I found myself armed with a new equipment and a new set of imaging and processing skills than previous.  Imaging this deepsky […]