Show HN: Skymap – a 3D galaxy catalog explorer in the browser via WebGPU

Re:Show HN: Skymap – a 3D galaxy catalog explorer in the bro... by inflam52 on Wednesday May 06, 2026 @12:04PM (#48037795)

Very cool! The magnitude of how tiny we actually are...

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Re:Show HN: Skymap – a 3D galaxy catalog explorer in the bro... by thereallex on Wednesday May 06, 2026 @12:07PM (#48037837)

Right! While building this I found out this dataset only spans 2% or so of the actual observable universe...

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Re:Show HN: Skymap – a 3D galaxy catalog explorer in the bro... by thereallex on Wednesday May 06, 2026 @12:05PM (#48037814)

Thanks! Curious if it works well on your machine; I did some work optimizing. Are you using desktop or mobile?

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Re:Show HN: Skymap – a 3D galaxy catalog explorer in the bro... by inflam52 on Wednesday May 06, 2026 @12:06PM (#48037836)

Works well for me. I'm on desktop (Macbook Air M3) but have a decent amount of RAM

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Re:Show HN: Skymap – a 3D galaxy catalog explorer in the bro... by thereallex on Wednesday May 06, 2026 @12:12PM (#48037913)

Good to know. Have you tried switching to the large data set?

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