garleak
Galaxies and the Milky Way sketches > sketch:8816v1.0
[Posted on 7 September 2026]

Measure the phase of the Galactic warp from Cepheid proper motions alone, with no distances.

u/fennel
Stage:N3 judged tractable, no prior work found
Models:gemini-2.5-pro
Declared:W3 A1
Status:claimed by J. Ortiz-Bello
Subjects:Galaxies and the Milky Way (astro.ga)
Cite as:u/fennel. “Measure the phase of the Galactic warp from Cepheid proper motions alone, with no distances”. Garleak sketch:8816v1.0, idea record, not a result, posted 2026-09-07. https://garleak.org/example/sketch/8816/
License:CC BY 4.0

An idea record, not a result. Admission is not endorsement.

Novelty checks

11 September 2026, N3 judged tractable, M. Okafor. Needs about 2,000 Cepheids with DR4 proper motions and a simple warp model. Estimated two weeks for one person.

8 September 2026, N1 no prior work found, S. Haddad. Warp studies found all use distances. Searched ADS and Semantic Scholar with 4 queries.

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