Tag: eclipse

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Yes, it turns out a colander *does* make a fun instrument for observing a solar eclipse! Also, thinking about how common eclipses actually are.

Circular shadow on the sidewalk, with lots of bright crescents inside, all facing the same direction.

For a lot of reasons, we didn’t arrange another road trip to see today’s total eclipse like we did in 2017 (which was amazing, by the way!). It was only partial out here in California, and not even with as high a magnitude as the one last October.

But we had clear skies, so we broke out the eclipse glasses from 2017 again. After testing them first by looking directly as a bright indoor lamp to make sure there were no scratches. And I’d heard that colanders make interesting patterns (each hole works as a pinhole camera) much like overlapping leaves do, so I brought that out — as you can see, it worked quite well!

I do kind of regret not being able to get out to see this one as total. Partial eclipses can be really cool, especially if you have multiple ways to observe them, but XKCD has a point. There really isn’t any comparison to experiencing totality, and it doesn’t come through very well in photos.

I bet northern Spain is already booked for 2026.

It is interesting to think that solar eclipses happen every year — usually twice! — but they’re not always total, and they’re only visible from a small part of the planet at a time. And sometimes that’s a slice of, say, Antarctica or Siberia or out in the middle of the ocean. Not rare for the planet, but definitely rare for any given location.

On one hand, it’s no wonder people used to see them as omens. With travel and communication slow (and in many cases impossible) in the ancient world, if you’re only going on what’s been seen in your area, it seems super-rare and unpredictable. On the other hand, cultures with sophisticated enough astronomy like the ancient Babylonians were able to calculate the eclipse cycle thousands of years ago!

One bit of funny timing: We’ve been catching up on the last season of The Magicians. Today we got up to an episode that…well, let’s just say the moon figures very prominently in it!

Update: Axios posted a nice map last week showing how fully booked AirBnBs are for the day in different parts of the US…which shows the path of totality *very* clearly!

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It was hazy, and the weather forecast was partly cloudy, but the sun stayed visible and the eclipse glasses (used here for the photo) haven’t cracked!

Yellow-orange circle on a black background, with a circular chunk apparently cut out of it.

We didn’t do anything complicated this time: just took the glasses with us as we went about our morning, looking through the glasses every 15-20 minutes to see how much was covered until it reached its maximum coverage of 78% of the sun’s apparent diameter.

And at projections. Leaves are nature’s original pinhole camera!

A bunch of overlapping bright crescents of light on the ground.

A road trip like 2017 to see the full annular eclipse would have been cool, but it just wasn’t something we could do this time around, and with clear visibility, there wasn’t any need to seek higher ground like 2012.

Here’s peak coverage for this area, again viewed through eclipse glasses.

Yellow-orange crescent on a black background.

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Found the eclipse glasses from 2017. Checked for scratches. Looks like they’ll be usable for Saturday’s solar eclipse!

It’ll be partial here in California, covering ~78% of the sun’s diameter. The annular shadow passes from Oregon diagonally to Texas, crosses the gulf to Yucatan, then follows Central America and crosses Brazil from west to east at its widest part.

Time and date calculator for when it starts, peaks and ends in your area, and how much of the sun will be covered.

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Full moon, mostly red except for a whiter edge at the upper left.

The evening was hectic, and I almost forgot. I had literally just put my son to bed when I remembered, “The eclipse!” We went out to see if the sky was clear.

Clouds were rushing across the sky, but for the most part, it was clear, and we had a perfect view of the moon looking like a dark brown chunk of rock in the sky.

Update: It wasn’t quite this red to the eye, it was more of a deep brown, maybe slightly brick red. Probably a matter of retina sensitivity vs. camera sensors.

(Then I spent 10 minutes fighting with camera settings while he went back to bed.)

Update: I went back out about an hour later to check out the view as the moon left the earth’s shadow, and caught these two photos, taken about the same time with different exposures so that you can see either the lit portion of the moon, or the part that’s still in the earth’s shadow.

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I woke up way too early to see if the Super Blue Blood Moon* eclipse would be visible or blocked by clouds. (You never know, and I didn’t want to wake up the kiddo in the middle of a school night if there wasn’t anything to see.) I had a clear view, but the street lights were too bright to see the red color. It just looked dull brown.

So I took a couple of pictures, then went back in to wake up the kid. He still wanted to go out and see, but only for one look. Totally understandable. I carried him out, we looked at the darkened moon, then I carried him back in and put him back to bed.

It’s the third lunar eclipse he’s seen, though one of them we didn’t get to see much of since it was so cloudy. And while it’s not as cool as a total solar eclipse, it’s something you can see with no special equipment by walking out into your front yard anywhere in the world that has a view of the moon during the several hours it takes the Earth’s shadow to move across it.

I went back out one last time to try for some photos of totality, but they didn’t come out any better than the ones I took the first time. I looked around for a spot that might be darker and still have a view of the moon (without trespassing in someone else’s back yard), but didn’t see one — there are way too many lights at night these days. Then I tried to place the constellations I could see, and failed. Then I went back in to go back to bed.

Unfortunately I don’t think I really got back to sleep, so I’ve been dragging all morning. The interruption didn’t help the kiddo either, so getting him to school was a bit of a challenge.

*Blood moon: lunar eclipse, Earth’s shadow darkening the moon & turning it red. Cool to see, widely visible.
Super moon: full moon during closest point in orbit, looks slightly bigger.
Blue moon: 2nd full moon in a calendar month, otherwise no difference.