Horsehead Nebula

This week’s target was Thor’s Helmet (NGC 2359), an emission nebula in Canis Major a rather distant 12,000 light-years away. It’s formed by a Wolf-Rayet star in its center, which is a crazy-hot star whose immense stellar wind is bunching up and ionizing the gases around it in these complex patterns. It’ll probably go supernova…

Now that our new backyard observatory is up and running, and we’re under darker skies than in our previous home, I’m revisiting some galaxies I’ve imaged before to see how things compare. Galaxies are tough… any amount of light pollution or moonlight really limits your ability to capture faint, wispy details. But the less light…

This is NGC281, or the “Pac-Man” nebula. I think it’s one of those objects that might look a little like its name if you’re viewing it through a big telescope in a dark sky, but takes on a totally different character in long-exposure, narrowband images such as this. This is a total of 13 hours…

This is planetary nebula PK205+14.1, but its common name “The Medusa Nebula” rolls off the tongue a little better. About 1500 light-years away within the constellation Gemini, you’re seeing the gas blown off by a small star that ran out of fuel, and blew up into a red giant – later to end its life…

Had a few hours of clear skies last night, and captured a globular cluster I hadn’t imaged before: M92. It’s a pretty one, and I’m surprised it’s not more popular. It’s in the constellation Hercules, and I suspect it just gets overshadowed by its even more spectacular neighbor, M13. Globular clusters were enshrouded in mystery…

Formally Abell 33 or the even more catchy name PK238+34.1, the “diamond ring nebula” is a planetary nebula – that means it’s the gas blown off by a dying star, not too different from our own sun. This one’s interesting due to its almost perfectly spherical shape, its cyan color from ionized Oxygen gas, and…