Life & fun · December 31, 2023
Clear Sky Alerts
Clear sky notifications for astronomers
Clear Sky Alerts launched on December 31, 2023 with 3 votes, #1,755 of 3,780 launches that month. The site was still online in September 2026, 2 years on.
What it does
Register, enable notification, add a location and you're done. You'll receive a notification if your location has clear skies that night.
Get alerts via push notification when the sky in your location is expected to be clear
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I really like Stellarium and SkySafari but I felt like these are primarily geared towards exploring the sky but not so much "here are the long list of things I want to see, when can I see them tonight and where". There's also not really a great option I've found that combines sky object planning + location weather details while still being free so I built this. The UI's heavily inspired by NINAs sky atlas + Robinhood. Right now you can: View the altitude chart of objects and 3D view Create lists of objects of interest View the annual max/min daily altitude of an object to find the best…
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