How to find stellar magnitude limit – A bit of a hack

Finding the stellar magnitude limit in an image is not necessarily as straightforward as it, at first, appears. I needed to come up with some non-hand-wavy numbers and thought, ‘No problem, this is easy.’ It turns out that I was wrong. At least for my imagery and what I wanted to say about it. The…

Cloud monitor MKII (now with POE!)

After building the Mark I cloud monitor, I realized that I really wanted something with power-over-ethernet (POE). The cheap network adapters that I use typically have an HR911105 (or similar) RJ45 connector which is not compatible with POE. I’ve looked but have yet to find any of these adapters with POE, so I decided to…