Photomnemonic Tablet

First Appearance and Context

A photomnemonic tablet is a dark, glassy disk used on the rooftop Starhenge above the Mynster to capture and replay observations. In instructional use, a tablet shows layered exposures of Saunt Tancred's Nebula that can be scrubbed back to the supernova peak.

Roles/Actions and Affiliations

• Time‑series capture: Tablets can be left installed to accumulate nightly exposures over extended spans and then replay them as an ordered stack. When used with Clesthyra's Eye, they record the whole sky; at customary settings a single tablet can continue for months before filling.
• Integration with instruments: The fixed all‑sky lens includes a tablet slot sized for this form factor, and the larger telescopes direct gathered light into a tablet for recording.
• Tolerated praxis: Tablets embed a syntactic device; their use is permitted within the Discipline as a grandfathered practice maintained alongside clock‑coupled systems by the Ita.

Relationships

• Instruments and sites: Closely associated with the starhenge instrumentation and all‑sky lens; used by avout cosmographers for study and demonstration.
• Exemplar dataset: Long‑running records tied to Saunt Tancred's Nebula are associated with Saunt Tancred.

Descriptions/Characteristics

• Form factor and handling: A flat, dark, glassy disk about the size of two hands across and several fingers thick; often kept blanked and wrapped in a dust jacket until use.
• Operation: Activating its “remembrance” function begins recording. Without optical elements, light falling on a bare tablet cannot form a usable image; instrument optics supply the definition. When a tablet is inserted into the slot beneath the all‑sky lens and the dust cover is closed, it records continuously until it fills.

Current Status/Location

In active use on the rooftop observatory, with instructional examples retained in a heated workspace and other units periodically installed under the all‑sky lens for long‑run capture.