IdeaWell

Project ideas from Hacker News discussions.

Zenith: a live local-first fixed viewport planetarium

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

3Dominant Themes in the Discussion

Theme Supporting Quote
Naked‑eye visualisation of Earth’s rotation “This is an interesting concept… surprising the first time you try using an non‑tracking telescope to see how fast the earth is turning.” — dylan604
Desire for extra controls and searchability “It would be cool to have a search box to jump to a specific star or coordinate, even if most things in the ribbon are obscure.” — a‑kgeorge
Real‑world sharing and educational uses “Will definitely project on the ceiling.” — meta‑meta

The summary keeps the focus on these three recurring ideas, each illustrated by a direct, attributed quotation.

🚀 Project Ideas

Generating project ideas…

OccultTrack

Summary

  • Simulates double‑star occultations of the Sun using real terrain data and lets users manually enter coordinates.
  • Provides a searchable star/coordinate box and mountain overlay for planning real‑world viewing.

Details

Key Value
Target Audience Amateur astronomers, educators, families
Core Feature Interactive 2‑D sky ribbon with mountain overlay, manual coordinate entry, and search box
Tech Stack React + Three.js + USGS DEM
Difficulty Medium
Monetization Revenue-ready: $5/mo subscription

Notes

  • Directly addresses the HN request for manual location input and a search box.
  • Uses terrain data to recreate the “mountain blocks the sun” experience discussed.

CelestialRibbon

Summary

  • Generates a configurable thin sky ribbon (≈ one rice‑grain tall) that can be searched and exported.
  • Enables users to project the ribbon onto a ceiling for immersive viewing.

Details

Key Value
Target Audience Hobbyist stargazers, teachers
Core Feature Adjustable angular height, searchable stars/coordinates, export to PNG/MP4
Tech Stack Python (Django) + Mapbox + Pillow
Difficulty Low
Monetization Hobby

Notes

  • Implements the “thin ribbon” concept requested in the discussion and lets users export for ceiling projection.
  • Offers a simple, low‑cost tool that satisfies the desire for a visual “2,500 rice‑grains long” sky strip. ## SkyCeiling

Summary

  • Real‑time AR app that turns any room ceiling into a moving celestial ribbon with manual coordinates. - Includes double‑star occultation simulations for educational and experiential use.

Details

Key Value
Target Audience Families, AR enthusiasts, educators
Core Feature AR ceiling projection, custom coordinate entry, Sun+Moon occultation simulation
Tech Stack Unity + ARCore/ARKit
Difficulty High
Monetization Revenue-ready: $2 per premium feature

Notes

  • Fulfills the “project on the ceiling” wish and adds interactive control, matching meta‑meta’s comment.
  • Engages kids and educators by letting them manually chase celestial motion, echoing petee’s classroom anecdote.

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