SiderealLab helps you measure Earth’s rotation speed based on your location and observation time. Built for astronomy education, it includes sidereal time input, visualizations, and exportable reports.
Find out how fast you are spinning from your latitude
SiderealLab helps you measure Earth’s rotation speed based on your location and observation time. Built for astronomy education, it includes sidereal time input, visualizations, and exportable reports.
Hi hunters, I’m Elliott, an astronomy student and indie developer based in Sydney, Australia. Over the past few months, I’ve been working on a project that brings a surprisingly overlooked concept to life — how fast the Earth is spinning beneath your feet, right where you stand. We often learn that the Earth rotates at ~1670 km/h at the equator… but what about in London? In Sydney? In your backyard? That’s where SiderealLab comes in. What is SiderealLab? SiderealLab is a scientific calculator th
Combining sidereal time with location-based data makes it a solid tool for hands-on learning in celestial mechanics.
Hi hunters, Please be advised that the SiderealLab iOS has been distributed via the Apple Store, Use the link SiderealLab to download and try it. Thanks Elliott (ET Carinae 137)
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Wow, experiencing the change in Earth's rotation speed based on location and time during stargazing sounds incredible! The visualizations must have been super effective in making that concept understandable.
The scores reflect launch-period engagement. Historical data is preserved and doesn't change retroactively. The build date at the bottom shows when the index was last refreshed.
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A measure of community engagement at launch. Higher means more people noticed and interacted with the product. It's a traction signal, not a quality rating.
Discussion threads divided by interest score. Above 0.30 is strong. Below 0.15 suggests the product got clicks but not conversation.