Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J07151825+4753167

TCP J07151825+4753167   2026 05 09.1599*  07 15 18.25 +47 53 16.7  14.4 U             Lyn       9 0

2026 05 09.1599

We report a dwarf nova candidate found with the NMW-TexasTech survey using two identical 135mm telephoto lenses + unfiltered QHY600M CMOS cameras. The transient was first detected on 2026-05-09.1599 UTC at CV=14.4 with one camera and confirmed with the second camera 8 minutes later on 2026-05-09.1656 at CV=14.5 (the magnitude difference is not significant). Nothing was detected at the transient's position to a limiting magnitude of CV~15.8 in the images obtained the previous night on 2026-05-08.1645. A blue Pan-STARRS 1 DR2 source PS1 165461088260365848 (g=21.90 +/-0.04, r=22.08 +/-0.15) is located at 07:15:18.22 +47:53:15.7 J2000, 1" from the measured position of the transient (NMW-TexasTech image scale is 5.9"/pix). The plate-solved FITS images, finder charts and animations produced from the NMW-TexasTech images are available at https://tau.kirx.net/img/TCPJ07151825+4753167/ The NMW-TexasTech survey operates at TTU Preston Gott Skyview Observatory (Shallowater, Texas). ----- Kirill Sokolovsky, Katie Barnhart, Darien Perla, Vallia Antoniou, Elias Aydi (Texas Tech University)

2026 05 09.5128

Follow-up photometry results were B =14.44, V =14.42, I =13.94. position end figures 18s.24, 15".6 using 0.3-m f/4 reflector + CMOS. observed by K. Yoshimoto, Yamaguchi, Japan.