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Another look at the “green comet”
I don’t know why the press has latched onto the name “the green comet” for C/2022 E3 (ZTF) – most comets are green, and it’s too dim to see any color at all if you’re viewing it through binoculars or a telescope. But through 2 hours of total exposure time, the colors do emerge, and…

Galaxies of the Hunting Dogs
The main galaxies in this image go by the unassuming names of NGC5033 and NGC5005 (5033 is the larger spiral galaxy.) They’re within a constellation named Canes Venatici, or “the hunting dogs.” Look closely, and you’ll spot a few other galaxies – some large but more distant, and some that are just really small and…

The Hickson 44 Galaxy Group
This is a weird little cluster of galaxies – there are four in all, and each one is completely different. There’s a weird, S-shaped one that must have been messed up by its neighbors in the past, a somewhat normal-looking spiral galaxy, and elliptical, and another one that’s viewed edge-on. Galaxies that have interacted with…

Cone Nebula
Narrowband image of the cone-shaped absorption nebula in front of the brighter emission nebula in this interesting region of the Christmas Tree Cluster, about 2,700 light-years away.

NGC210 is getting photobombed.
At the center of this image is the distant galaxy NGC210, 65 million light-years away within the constellation Cetus. It’s mind-blowing that we can capture an image of something so distant from our backyards, given the right technology. It’s also mind-blowing that we’re looking at light that has been traveling for 65 million years, giving…

The Eagle Nebula – sans stars
This image was something of a happy accident – I spent a night capturing narrowband data on M16, the Eagle Nebula (home of the famous “pillars of creation”.) Of course I had to try reproducing the iconic Hubble image as best I could, but the color palette they use results in big, ugly, magenta-colored stars….