The Whirlpool Galaxy

An interesting emission nebula 30 light years across. Imaged with narrowband filters.

About 10 million light-years away within the constellation Camelopardalis lies NGC2403. It doesn’t get much love, but it was really an oversight in the famous Messier catalog that defines the most popular deep-sky objects. So let’s give it a little attention, and reflect on the fact that the light we’re seeing from this galaxy started…

About 2,700 light-years away within the constellation Monoceros lies the Cone and Fox Fur Nebulas, containing the “Christmas Tree Cluster” of stars as well. I’ve imaged this many times before, but have never been happy with the results. By combining data from last year with more data collected this year however, I finally got enough…

Our new house has plenty of land, reasonably dark skies, and a reasonable homeowner’s association… so of course I had to try building an observatory! It may sound crazy, but it does offer a lot of advantages: I no longer have to set up my telescope, wait for dark, polar align it, and run a…

A nebula that looks like its name! Formally SH-308, this bubble of gas 60 light-years across is blown out by a hot Wolf-Rayet star at its center. It’s about 4500 light-years away in the constellation Canis Majoris. It’s quite dim, but if you could see it with bionic vision or something, it would be larger…

The Heart Nebula is a little too big to fit within the field of view of my telescope, but its inner “heart” is interesting in its own right. This is star cluster Melotte 15, formed from the gases within the Heart Nebula – and some of that gas remains, forming interesting clouds and formations where…