Doctor’s Jaconda System Orrery

Model of the Jaconda system's orbital mechanics, used for gravitational path analysis and flaw detection in planetary alignments.

3 appearances

Appearances in the Narrative

When this object appears and how it's used

3 moments

S21E26 · The Twin Dilemma Part 4

Doctor uncovers Mestor's fatal flaw

The Doctor retrieves the Jaconda system orrery from the ceiling to visually model Mestor’s tractor beam plan, tracing orbital paths and time zone differentials. The brass spheres’ precise movements expose the mechanical flaw: smaller planets cannot sustain Jaconda’s solar proximity without collapsing into the sun. The device becomes a tangible link between theoretical science and cosmic catastrophe.

Before: Suspended from the laboratory ceiling in stable equilibrium, used previously for display or educational purposes

After: Held on the table in active use, its delicate spheres rotating as its purpose shifts from model to instrument of revelation

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S21E26 · The Twin Dilemma Part 4

Peri questions time travel origins

The Doctor silently retrieves the Jaconda system orrery from its mount, using its physical model to illustrate gravitational orbits and time differentials during the unfolding discussion. Though not directly employed in the moral exchange, its presence provides the visual anchor for Peri’s and Azmael’s dialogue, making temporal manipulation graspable.

Before: Suspended from the ceiling in its protective casing, calibrated to model Jaconda’s system with precision

After: Removed from storage and held in the Doctor’s hands, actively used to explain orbital mechanics to the group

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S21E26 · The Twin Dilemma Part 4

Twins grasp Mestor's genocidal design

The Doctor removes the Jaconda System Orrery from storage, using it to visualize the gravitational interplay between planets. Its suspended spheres and brass gears become a tangible representation of Mestor’s flawed design, prompting Azmael to confront his earlier oversight. The device’s delicate equilibrium mirrors the fragile stability of the system it models.

Before: Stored out of sight on a high shelf, disconnected from the present crisis.

After: In use on the lab table, its components rotating under the light as it illustrates the proposed orbital catastrophe.

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