Ulisse Munari reports on an ATel that KT Eri = Nova Eri 2009 has been having a steep brightness increase toward a new state this winter, presumably some change in the accretion:
https://www.astronomerstelegram.org/?read=17125
The star is nearing the end of its observing season (about -10 Dec) so is perhaps worth following deeper into twilight than might ordinarily be the case.
\Brian
Hi Brian,
Ulisse wrote to @weo . Because it is approaching / in solar conjunction, I think our intent is to issue an observing campaign for a few months from now.
Brian
Yes, please observe KT Eri for as long as possible as its observing season ends, and pick it up again as soon as possible after it emerges from conjunction. Photometry in all bands is welcome, especially BVRI, and visual observations are also valuable. Finder charts with comparison stars may be created using the AAVSO Variable Star Plotter (VSP).
Good observing,
Elizabeth Waagen, AAVSO HQ
For UT 2025 Apr 7.1, I found V = 14.14, B = 14.36, U = 13.16, all +/- under 0.02 mag, adopting stars from a comparison sequence provided to me by Ulisse Munari. Observed in twilight at airmass 2.7 using the Lowell 1.1-m telescope + CCD. I use a Sloan u filter to get nominal Johnson U. The U magnitude seems to be consistent with the trend shown in the plot in ATel 17125, suggesting continued increase in the brightness in the violet. Final numbers pending proper calibration.
\Brian