Friday, December 22, 2023

An Arizona trip highlights video

I'm in the middle of a two-week vacation, which has provided me some much-needed time to rest and recuperate. I can tell I really needed this time off; normally, after two days of rest I've recovered my creative spark, but this time it's taken nearly five days to start to feel like doing much of anything. I say this by way of explanation for why updates have been so sparse around here, and hopefully I'll be able to get around to a few of the many projects I've got tucked away in my brain in the remainder of the year.

For this post, have a little video with some drone footage from my trip to Arizona. I took a motley collection of clips from a variety of locations, and have interwoven them in what seemed like an interesting fashion.

One location that shows up a few times is Cochise Stronghold (named for a famous Apache chieftain who held out and was eventually buried in the area). It's a large rock formation in the Dragoon Mountains, with a hiking path going up to it.

Cochise Stronghold (taken from the air with my Mini 3 Pro).

Another thing which shows up in the video a few times is the migration stop (or overwintering site, I'm not sure which) for sandhill cranes. As seen, there were a lot of them there; they're quite common and not endangered (estimated population in North America in the hundreds of thousands), and didn't seem to be all that bothered by my drone beyond a little unease, so I felt comfortable flying fairly close. It was incredible seeing what must've been thousands together like that; we don't really see anything like that here in Hawaii (or maybe I'm just not looking in the right places!).

A tiny fraction of the sandhill cranes present. They're fairly large birds, think “flamingo-sized.”

Also appearing a few times is the town of Pearce where I stayed. It's intertwined with a golf course built around half a century ago, which ultimately didn't prove successful. (I can only imagine the water bill to keep it green during the summer!) The holes meandered about through the town, and traces of them can still be seen all over the place, including the water hazard now being used as a reservoir for the vineyard seen at about 1:20 in the video.

Anyway, that's all for this post. I still have a few locations where I took enough photos to get another post or two out, but I wanted to get this video out to show off some of the bits and bobs of footage I got. A hui hou!

Friday, December 8, 2023

Happy half-birthday, Halley's comet!

I'm typing this on my lunch break at work so this'll be short, but this week I learned that Halley's comet will reach aphelion, the farthest point in its orbit from the Sun, at 3 PM HST (when this post goes out). At that point it'll be momentarily traveling at its slowest speed (relative to the Sun), a mere 0.91 km/s, or 2,035 mph. After that, it begins the long accelerating fall back in towards the inner Solar System. And yes, aphelion is only a "half-birthday" if you count its "birthday" as being perihelion, but it's as good a time as any and makes for a catchy title, so I went with it.

Halley's comet (or 1P/Halley to give it its official designation, the "P" meaning "periodic" and the "1" meaning it's the first to be recognized as such) is currently far too faint to be observed from Earth with even the largest telescopes, having last been imaged twenty years ago in 2003. (It might be possible to observe with the Hubble or JWST, but no one is looking – there wouldn't be much to learn from it.) Presumably that means it'll take about another twenty years to be imaged again, so look forward to that sometime around 2043, unless the ELT decides to try for it earlier or something.

Having been born three years after its most recent perihelion in 1986 I've never seen Halley's comet myself, but this is a nice reminder that it's still out there, and on its way back in again. Hopefully I'll get to see it at its next perihelion in July 2061! A hui hou!