A twilight sundial with geocentric orrery ( planetarium ) for smart watches with built in GPS receivers.… Show more

Compatible with

Wear OS (Legacy) Tizen

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Abstract sundial; sunrise; sunset; civil; nautical; astronomical; twilight; dusk; solar; noon; battery; date; dial; solar dial; geocentric; orrery; planetarium; planets;

• Published on Apr 23, 2024
• © 2024 Michael O'Day ™. All rights reserved.