Part · earlier-joint-load-testing

Astronomical time fixed-star sighting frame

Nighttime fixed wooden sight plane with two retained narrow fiber crossings, plumb orientation, protective viewing hood and mineral anchoring identifies repeated transit of the same celestial field; no clock origin, optical telescope or solar sight assumed.

Discovered · unresearchedClosure: OpenInventory incomplete

Capability requirements and tolerances

Consumer-specific numerical targets, quantities and acceptance limits remain open or incompletely reviewed. No smartphone-grade suitability is claimed. Distinct capability tiers require their own making route and qualification.

Making steps · draft selected for navigation; not a validated fabrication specification.

Known Parts and Tools

The selected route supplies this page's inventory and the map's dependency links from one record. Further requirements may be missing; review flags do not prove physical suitability.

Requirement	Role	Use	Relationship status
Collected wood	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Fiber cord	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Collected tool stone	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Woven cloth	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Nighttime fixed-star observation field	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Stone hand tools	Tool	reused making/operation	Cycle-checked; compatibility unknown
Abrasive stones	Tool	reused making/operation	Cycle-checked; compatibility unknown
Timber structures	Tool	reused making/operation	Cycle-checked; compatibility unknown
Coarse comparison reference	Tool	verification	Cycle-checked; compatibility unknown

Making outline

Cold fit a fixed wooden two-sight plane with fine retained fiber crosslines, suspended mineral plumb and anchored stone feet, fit separate opaque viewing hood, then observe repeated same-star crossings against the mechanical transfer assembly externally
Detailed procedure and acceptance remain unresearched.

What remains unresolved

Manufacture, quantities, suitability and complete inventory remain unreviewed.
Current memory-first method needs source and compatibility review.

Canonical reuse assessment

{
  "checked": [
    "optical-metrology",
    "time-comparison-reference"
  ],
  "decision": "Earlier mechanically retained naked-eye transit reference construction; angular accuracy and visibility unqualified."
}

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Used by

Items that directly require this item in their selected inventory.

Time comparison reference

Paths from Smartphone

These routes together include every item that can lead from Smartphone to this item. Repeated path combinations are collapsed; recipes are omitted.

Shortest route: Smartphone → Cover glass → Time comparison reference → Astronomical time fixed-star sighting frame

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