The Ghost of Cassiopeia

There’s a comet in the sky! They don’t appear this bright very often, so don’t miss what could be a once-in-a-lifetime chance to see a comet with your own eyes. It’s tough to spot here in suburbia with your eyes, but it’s easy to see with binoculars. Its official name is C/2020 F3 NEOWISE. Just…

I’ve imaged this one before, but I keep coming back to it because I just can’t believe its golden color is real. But even after applying all I’ve learned about color calibration – I can say pretty definitely that these are its true colors. It’s also benefited from advances in image processing software, making the…

It’s a good thing galaxies don’t have feelings; they’re just collections of billions of stars. Because NGC 2903 would need therapy. It has no cute nickname like other galaxies; it’s just NGC 2903. And it has no galactic neighbors; most galaxies are gravitationally bound to other galaxies in their local group or cluster, but NGC…

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….

In these short summer nights, I want to take advantage of every moment of darkness. Right now, the galaxy M100 is up in the hours before midnight, and the “Tulip Nebula” – formally SH2-101 – rises just as M100 sets. So for this past week, I’ve been imaging both objects. But no more clear skies…

Formally SH2-155, the Cave Nebula lies about 2,400 light-years away within the constellation Cepheus. It’s part of a much larger region of gas and dust (called a molecular cloud). This region is mostly ionized Hydrogen, but there’s just enough Oxygen – blue in this image – to make for a pretty picture. Capturing that Oxygen…