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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…

The Whale and the Hockey Stick
It’s not the title of a children’s story – it’s a pair of galaxies 30 million light-years away that look like, well, a whale and a hockey stick. Officially their names are NGC 4631 and NGC 4656.

The Rosette Nebula, revisited
Had a couple of clear nights recently, and trained the ‘scope at the Rosette Nebula again. By combining this year’s data with last year’s, I created an image with a total 27 hours of exposure time! The Rosette Nebula is about 5,000 light-years away within the constellation Monoceros, and is the birthplace of the cluster…

The Moon is Ready for its Close-Up
Last night I set out to image Jupiter and Saturn, but both are pretty far away at this point, and the atmospheric conditions weren’t great. So I tried for the Moon instead. We take our nearest celestial neighbor for granted – there’s a whole world right next to us, waiting for us to explore it!…

Off to See the Wizard
There are a lot of stars in this picture; the gases of the Wizard Nebula (formally SH2-142) are the birthplace of those stars, and more are being created even now. It’s located about 7,200 light-years away, and is extremely dim – it took over 9 hours of exposure time to capture this image. Your ability…

Flaming Star Nebula
Imaged in narrowband filters from my suburban driveway. This object lives up to its name with the right color mappings!