Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J12312434-5907133

PNV J12312434-5907133   2025 11 29.7188*  12 31 24.34 -59 07 13.3  10.8 U             Cru       9 9

2025 11 29.7188

Possible new nova in Crux. Discovered by John Seach, Grafton, NSW, Australia. Object visible on 3 images taken with DSLR with 85 mm f/1.4 lens. No object identified at position on 3 reference images taken with same instrument on 2025 September 6.365 UT, limiting magnitude 11.8. No minor planet at position. No object on DSS2-red. No variable star on VSX.

2025 11 28.8108

Suspect visible in patrol images taken with a Canon 800D camera + 85mm f/1.2 lens. Position end figures 24s.29, 06.5". Unfiltered magnitude 12.1. Suspect not visible on patrol images taken on Sept 27.8132 UT to a limit of magnitude 12.5. Andrew Pearce, Nedlands, Western Australia.

2025 11 30.3382

Follow up observation using 135 mm F3.5 lens and CMOS, remotely operated from Rio Hurtado, Chile. Magnitude 11.2 unfiltered. November 30.3382 UT. John Seach, Grafton, NSW, Australia.

2025 12 3.8044

Position end figures 24s.40, 08.3" measured with 0.05m refractor + CMOS camera, J2000, Gaia DR2 positions. Transient position is within 0.2" of Gaia DR3 catalogue star 6059209882617790336 (20.7 G mag). Photometry - TB = 13.35, V = 12.39, TR = 11.31. Previous negative observation reported on Sept 27.8132 UT was actually made on Nov 27.8132 UT. Andrew Pearce, Nedlands, Western Australia