Melotte 15

Seems I revisit this pair of galaxies, 12 million light-years distant, every year. Although they are close and bright as galaxies go, they are challenging targets for imaging – especially if you are trying to pull out the faint jets spewing out of the Cigar Galaxy on the right. This image represents over 25 hours…

This gorgeous nebula, formally known as NGC281 in the constellation Cassiopeia, goes by the informal name of “The Pac-Man Nebula.” I don’t see a Pac-Man. I think it’s a case where if you look at it through a telescope with your eyes, you only see the brightest parts – and then, maybe it looks a…

You’re looking at about 500,000 stars, balled up just outside of our galaxy. They are ancient; about 8 billion years old.

Messier 88, within the constellation Coma Berenices, is part of the nearby Virgo cluster of galaxies. And by “nearby”, I mean 50-60 million light years away! The light we’re seeing from this galaxy originated from the time of the dinosaurs. Telescopes are really time machines. There are many other galaxies surrounding M88, both smaller and…

This image contains a few things! At the bottom is the Cone Nebula, at the upper-right is the “Fox Fur Nebula”, and in the middle is the “Christmas Tree” star cluster… you have to flip the image upside down to see that one. It’s a gorgeous region of active star formation in the constellation Monoceros….

Like the Bubble Nebula, and Thor’s Helmet, this is formed by the fast stellar wind of the extremely hot star at its heart – which interacts in complex ways from the wind left over from when this star was a red giant. This is roughly 5,000 light-years away. These images were taken over the span…