Archive Post

Hertzsprung-Russell Diagrams: Doing Real Science from Your Backyard

One of the most powerful tools in astrophysics is also…

Heart Nebula Mosaic – Five Nights, Two Panels

The Heart Nebula (IC 1805) is a massive emission nebula…

M33 – The Triangulum Galaxy (6 Hours of Integration!)

The Triangulum Galaxy (M33) is the third-largest member of our…

The Leo Triplet – Three Galaxies in One Frame

The Leo Triplet is one of the most photogenic galaxy…

M3 – Half a Million Stars in One Frame

Messier 3 is one of the largest and brightest globular…

Capturing NGC 2403 – A Neighbor to the M81 Group

Last month I spent two nights capturing this beautiful spiral…

HF Dopplergams

One of my many interests is HF propagation study. For…

Homebrew AM Transmitter

I've been an amateur radio operator since 2001 and a…