Celestial instruments Surviving artifact

Jai Prakash Yantra — Jaipur

Early 18th century; restored scales

Speculative use · Tartarian imagining

Imagine a recessed celestial bowl used to navigate an Old World calendar by shadows and star positions.

An imagined use within Tartarian lore; its historic use is not established by this interpretation.

Where it survives

Jantar Mantar

Jaipur, India

Surviving installation; pin marks the current site approximately. Access and operating status vary.

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Collection reference: Not supplied by the linked record

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