AAVSO: American Association of Variable Star Observers

Proposal #205

Proposer (2108) Arne Henden (ahenden@gmail.com) obscode: HQA
Assigned To(3663) Dirk Terrell
Date SubmittedMarch 19, 2021

This new outbursting object, presumably a nova, is coincident with a known W UMa binary. As such, there is an outside chance that this is a merging event, similar to V838 Mon or V1309 Sco. I would like to monitor its evolution, both with BVRI photometry as well as with the BSM_NH2 diffraction grating. Photometric observations will be reported daily (VPHOT transfer option requested). Daily observations are requested for now - I'm assuming other observers will do time series to look for periods.

Target RA (H.HH) Dec (D.DD) Magnitude Telescope Observation Frequency Expiration Date Proprietary Term
CzeV3217 23.413222 61.18722 15.0–9.0 BSM_NH2 Sept. 16, 2021 No


(4726) Kenneth Menzies — March 20, 2021, 2:38 p.m.

What is focus offset for Grating GR?

(4726) Kenneth Menzies — March 20, 2021, 2:44 p.m.

Committed to NH2

(2108) Arne Henden — March 20, 2021, 6:21 p.m.

I checked on NH2 this morning, and the field is too far north to pick up this early in the season. Can you assign me to BSM_TX for the next week or so as well? Thanks. GR defocus is +250 units.

Comments on this proposal are closed.