Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J14372177-5847400

PNV J14372177-5847400   2025 09 22.3965*  14 37 21.77 -58 47 40.0   6.2 U             Cen       9 1

2025 09 22.3965

Possible new nova in Centaurus. Discovered by John Seach, Grafton, NSW, Australia. Object visible on 3 images taken with DSLR with 40 mm f/1.4 lens. No object identified at position on 3 images taken with same instrument on September 21.3660 UT, limiting magnitude 11.0. No minor planet at position. No object on DSS2-red. No variable star on VSX.

2025 09 22.5492

Dear Sirs, Following the posting on the Central Bureau's Transient Object Confirmation Page regarding a possible nova in Cen (TOCP Designation: TCP PNV J14372177-5847400), we performed follow-up observations of this object using a 0.35-m f/3.0 reflector telescope equipped with a CMOS camera, located in Australia, near Moorook, and operated by SPACEFLUX company (MPC Code Q22). In images taken on September 22.55, 2025, we confirm the presence of an optical counterpart with an unfiltered CMOS magnitude of approximately +5.8, at coordinates R.A. = 14 37 21.71, Decl. = -58 47 43.6 (equinox 2000.0; astrometry based on Gaia DR2 catalogue reference stars). Ernesto Guido, Marco Rocchetto and Luca Izzo

2025 09 22.5492

An animation showing a comparison between our image and an archive POSS plate (1993) is available at the following url: https://tinyurl.com/PNCEN2025 - Kind Regards, Ernesto Guido, Marco Rocchetto and Luca Izzo

2025 09 23.3833

A low-resolution optical spectrum shows strong broad hydrogen Balmer emissions, indicative of a classical nova. Observer Rob Kaufman, Bright, Victoria, Australia. Spectrum with details here: https://photos.google.com/photo/AF1QipMCJjhftm3oZiiCYjkVWt0mhhbHqkI3msTJ_awG

2025 09 23.4958

Position end figures 21s.80, 41.2" measured with Perth Observatory 0.35m f/6 RCOP reflector + CCD, Perth, Western Australia. J2000, Gaia DR2 positions. Transient position is within 0.35" of Gaia DR3 catalogue star 5879255150965919104 (G magnitude = 16.7). Photometry - B = 7.43, V = 7.19, R = 6.13 and I = 5.37. Images may be saturated. Visual magnitude estimate - 6.8. Andrew Pearce, Nedlands, Western Australia