Tagged: Sharpless - Adam Lundie - Eatons Hill Observatory

Tagged: Sharpless

The Flame and Horsehead Nebulae thumbnail
Adjacent to the bright blue supergiant star Alnitak shines the ionised hydrogen of the Flame and Horsehead nebulae.

Trifid Nebula in HaLRGB thumbnail
Almost everyone has a go at imaging the Trifid nebula, which is composed of 3 different type of nebulae; emission, reflection, and absorption. When I noticed some faint red glow in the background, I decided to try integrating some long hydrogen emission line frames to see if I could get any structure out of it. I'm quite happy with the resulting background structures!

Astronomy as Art - The Many Faces of Narrowband thumbnail
Narrowband images are rarely presented as true color light. When imaging in narrowband, colors are assigned to each channel based on the specific emission lines captured. One of the most common choices is the SHO Hubble Pallet, but the choices for mixing colors are endless. Here are 9 examples of how an image of a planetary nebula may be colored.

Revisiting the Lagoon Nebula with a new telescope. thumbnail
I was lucky enough to snag a second hand 900mm refractor at a good price. I needed a bright target to test it with. The Lagoon Nebula is a giant interstellar cloud around 4077 light years away, classified as an emission nebula and as an H II region.

First Narrowband, Difficult Subject: Planetary Nebula Sh2-313 thumbnail
For my first foray into narrowband imaging, I have chosen a very dim & difficult target: planetary nebula Sh2-313, also known as Abell 35 and PK 303+40.1

Animation of Lagoon Nebula Reprocessing Stages thumbnail
Often I like to see how an image is processed from start to finished. Presented in this animation are the main processing steps in sequence from my reprocessed image of the Lagoon Nebula.

Lagoon Nebula Reprocessed thumbnail
Cloudy nights and full moons gave me a chance to have another look at one of my first deep sky photographs. The first image taken through my telescope that made me say "wow". I decided to try reprocessing the original data with the skills I've learned in the past few months.

Test Shot of the Orion Nebula thumbnail
My original target was the Helix Nebula, but after spending most of Saturday night trying to work out how to use off axis guiding, I gave up and noticed Orion was rising. A nice bright target to use the drift aligned mount on.

The Orion Nebula thumbnail
The Orion Nebula is one of the brightest nebulae in the sky, visible to the naked eye. It is seen as the fuzzy middle star in the sword of Orion. The nebula is 1344 light years away and is one of the closest star forming regions to Earth.