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vemmsunj

Interactive sky-watching map for satellites & dark skies.

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VEMMSUNJ is an open-source sky-watching map for stargazers and satellite spotters. Key features: • Live satellite ground tracks & pass predictions • Dark-sky spots and observatory discovery • Red-light mode to protect your night vision • Personal sighting logs to track observations Free, MIT-licensed, and powered by NASA JPL, CelesTrak, and NOAA data. Built for clear nights and curious minds.

PH · launched Oct 19, 2026 · 2 upvotes (top 22%) · 0 views

Niche: stargazing and astronomy weather apps · 90 launches, 12 in the last 7 days ▼ -29% · Explore this niche →

Category and tags
  • Horizontal
  • Analytics & BI
  • B2C
  • Not AI
  • Hobby / open-source project
  • Open Source
  • Space
  • GitHub

Visit website ↗ Source listing ↗

More like this: all 90 launches in stargazing and astronomy weather apps →

Could you build this?

Yes Satellite orbit data, dark-sky maps, and observatory locations are available from public sources such as CelesTrak and OpenStreetMap, and the map UI and logging are standard web work.

Competitors

Other products that read as similar to this one : 202 launches clear the similarity bar, closest 8 shown.

Attention rank: #39 of 203 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 343 days after the earliest competitor.

  • NightSkyCast · ph · 2026-10-30 · 1 upvotes · similarity 0.55
  • StarLeak · ph · 2026-10-06 · 1 upvotes · similarity 0.50
  • AstraScope — Explore. Plan. Observe. · ph · 2026-09-22 · 1 upvotes · similarity 0.49
  • StarScope · hn · 2026-06-15 · 22 upvotes · similarity 0.48
  • AstraScope · ph · 2026-11-13 · 1 upvotes · similarity 0.47
  • Gaia Atlas · hn · 2026-05-29 · 6 upvotes · similarity 0.46
  • RemoteView · ph · 2026-10-24 · 1 upvotes · similarity 0.45
  • 2piClock · ph · 2026-10-08 · 1 upvotes · similarity 0.43

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.