Solar Eclipse Planning tools are launching in Photo Ephemeris Web very soon!

The upcoming Oct 14 2023 and Apr 8 2024 eclipses will provide viewing opportunities for millions in North America and promise to be a photographic gold mine!

Join us for the free, live launch presentation this coming weekend, on May 27 at 10:30am Mountain Time.


It's almost ready! Solar eclipse planning in Photo Ephemeris Web coming soon:

- Paths of totality/annularity
- Contact times and details
- Eclipse simulation

Here's something I've never managed to photograph before here in Colorado - the aurora borealis venturing south to Boulder County!

If you’ve not yet seen a total eclipse of the sun - make a plan. It will take your breath away.

We saw the 2017 eclipse in Nebraska, camped in a farmer’s field and it was amazing.

North American peeps: Apr 8 2024 👀

If this week goes well, should have a web app beta with some new toys to try out in a few days from now.

Annie was wrong. At some point, the sun may not come out tomorrow.

"In 1989, Laskar provided evidence that the Solar System is chaotic,[…] meaning that it is possible to predict the trajectories of the Solar System over 10 Myr but fundamentally impossible over more than 100 Myr. […]

The researchers looked at 2501 possible scenarios, 25 of which ended with a severely disrupted solar system."

#astronomy #solar #system

This must be the best possible shade-minimizing awning design - just weird. It was 35C out there today, too. 🥵. AR screenshot from Photo Ephemeris iOS.

Fascinating video by Alex Nye discussing how he created a special sunset timelapse video that went viral and garnered over 250m views 😳

Just released v3.4 of Photo Ephemeris Web. This cleans up the UI a little, enhances the adjustment for elevation above the horizon (it will now take elevation offset Into account, e.g. if you're on the 33rd floor of a tower), and you can save elevation offsets with your locations.

Full details here:

Would it be fair to say that the crowd here on Mastodon skews towards early adopters?

If so, you might be interested to know that we maintain a public beta version of Photo Ephemeris Web, together with detailed release notes.

You can find our more at

Hello, world! We're happy to be setting up here on Mastodon. Thanks to for adding us to their instance.

We'll be posting product news and updates.

To kick things off, we are hosting a free webinar titled "Maps and more in Photo Ephemeris Web" this coming Saturday. You can register at

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