Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J00425848+4108114

PNV J00425848+4108114   2025 12 28.7654*  00 42 58.48 +41 08 11.4  18.9 U  159E 476S  M31       9 -

2025 12 28.7654

Flavio Castellani report the discovery by F.Castellani, R.Belligoli and V.Andreoli of a PNV (Mag. 18.9R +-0.20 – GAIA DR3 catalogue) in the host galaxy M31 at Monte Baldo Observatory, Ferrara di Monte Baldo, Verona, Italy (A99), in the course of Italian Supernovae Search Project using a 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF unfiltered CCD camera)20*180 co-added images. No stellar source was visible at the position of the transient in our past images including reference image dated 2025/12/22 20:58:02 and 2025/12/27 17:43:01. Position of the object is close to AT 2025aeum, identified as a possible eruption of the recurrent nova M31N 1963-09c. The difference of 0.74S East and 1.1" South as well as a careful verification of the position of the transient from the PanStarrs and the images of the reports leads to exclude that could be the same object. Discovery image at: https://www.flickr.com/photos/186131359@N02/55010875275/in/dateposted-public/