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I'm crudely estimating from the posted uncertainties that the 3¦Ò uncertainty ellipse is somewhere around 20 arcmin across, which is rather large for JWST whose largest camera only covers a pair of 2.2x2.2 arcmin fields. The full ellipse still about fits within a single Roman field, and that telescope should be about as sensitive as Hubble = only ~1-2 mag less sensitive than JWST for the same exposure time (which should make actually Roman faster at searching the full field to the same depth). However, given that solar system science is an extremely low priority for that telescope, I doubt a dedicated search program that goes sufficiently deep for a realistic chance of detection (likely taking a few days) would ever be approved. I think the best chance here would be to find a team with a non-solar system science case to do a deep observation of a field that fits the characteristics of the comet search field, and ask them to target that search field for their program. Qicheng
On Sunday, May 4, 2025 at 07:31:54 a.m. MST, Adrien Coffinet via groups.io <adrien.coffinet2@...> wrote:
Mag 34 for JWST is ultra-deep field like when Hubble reaches mag 31+. I'm not convinced that they would make such an ultra-deep field just to recover such a comet that would anyway be recovered long before perihelion by more classical telescopes, unless one really has a good reason for such an observation, or has something else more certain to observe in this field. Adrien Le dim. 4 mai 2025, 16:12, Maik Meyer via <maik=[email protected]> a ¨¦crit?: Thanks Rob! |
