Proposal #671

Proposer (47688) Brian Scott (bnscott@mac.com) obscode: SBQ
Assigned To(3663) Dirk Terrell
Date SubmittedJan. 9, 2026
StatusAllocated
PriorityNormal
Proposal

I follow several RCB type variables and just noticed that the star V381 Lac seems to have gone into a decline. There is only limited observation data in the AAVSO database for this star when it is dimming so I thought it might be worth some observation to try to track its behavior. It is quite dim; my latest estimate has it dimmer than 17.4 V, so I don't know how feasible an AAVSONET observation might be. But I think it should be doable with a larger aperture scope, especially if the scope it is located in a more southern latitude (such as DSO35, for example). The star is still visible in the early evening.

Given the faint magnitude I think unfiltered observations would probably give the best results.

Targets
Target RA (H.HH) Dec (D.DD) Magnitude Telescope Observation Frequency Expiration Date Proprietary Term
V0381 Lac 22.266358 42.37958 19.0–15.0 MPO61 1 July 15, 2026 No

Comments

(3663) Dirk Terrell — Jan. 12, 2026, 10:35 p.m.

The TAC approves this project but requests that filtered observations be made, at least in V if not VI or VRI to make the data more scientifically useful.

(47688) Brian Scott — Jan. 14, 2026, 5:03 p.m.

Whatever the experts think best in terms of filters is OK with me. I only suggested unfiltered because I wasn't sure if filtered observations would give sufficient SNR considering the likely faint magnitude of the target.

(4726) Kenneth Menzies — Jan. 16, 2026, 10:03 p.m.

committed to mpo61

Comments on this proposal are closed.