Proposal #661
| Proposer | (34732) Filipp Romanov (filipp.romanov.27.04.1997@gmail.com) obscode: RFDA |
|---|---|
| Assigned To | (3663) Dirk Terrell |
| Date Submitted | Nov. 9, 2025 |
| Status | Accepted |
| Priority | Normal |
| Proposal | Nova M31 2025-10a = AT 2025abao is likely a luminous red nova in M31 (ATel #17468 https://www.astronomerstelegram.org/?read=17468 ), such stars are rare and their photometry is important for science, so photometry is required with V, B, Rc, Ic and Sloan g', r', i', z' filters. While it's still around 15 mag, is necessary daily with exposures 300 seconds (or 2x300 sec.) for each filter, when it gets fainter, then we'll need to discuss several filters with shutter speeds, for example, 3x300 sec. I think these telescopes would be suitable: FSM-SRO50 (B,V,Rc,Ic), FSM-TMO61 (SG,SR,SI,SZ, B,V,R), but it seems they have been inactive for a long time. It seems that the only active telescope now is FSM-MPO61- we can try 300 seconds with B, V, Rc, SG, SR, SI and SZ filters and check what the SNR will be. Probably for B it will be necessary 2x300 sec. already now. With best regards, Filipp. |
| Target | RA (H.HH) | Dec (D.DD) | Magnitude | Telescope | Observation Frequency | Expiration Date | Proprietary Term |
|---|---|---|---|---|---|---|---|
| Nova M31 2025-10a | 0.646667 | 40.76889 | 22.3–15.0 | — | — | — | No |
Comments
- (34732) Filipp Romanov — Nov. 10, 2025, 9:08 a.m.
Correct position: 00 38 48.60 +40 46 08.2.
Maybe 3x180 sec shutter speeds will be good, but for B it is definitely better to increase the shutter speed.- (34732) Filipp Romanov — Nov. 14, 2025, 10:17 p.m.
Thank you for approving my AAVSOnet proposal #661! It has started to fade in B band.
Comments on this proposal are closed.