AstroNote 2024-6

AT 2024gy was discovered by K. Itagaki on 2024-01-04 16:16:12 UT at 16.3 mag (Clear). The position reported to TNS was corrected in a TNS comment by H. Yamaoka. Stanek and Kochanev reported a detection with ASAS-SN (ASASSN-24ac) on 2024-01-05 11:02:24 UT at g-Sloan = 16. M. Newsome et al. (Global SN project) reported to TNS the spectroscopic classification of SN 2024gy as a young SN Ia at z = 0.001183. Here, we report follow-up photometry with one of the LCOGT 1m telescopes at McDonald Observatory. We measure SDSS g' = 16.08 +/- 0.1 on 2024-01-05 11:56:59 UT, calibrated using the Gaia DR3 synthetic photometry catalog generated from the Gaia BP/RP mean spectra (Gaia Collaboration, 2022), uncorrected for interstellar extinction, and a position RA (J2000) = 12:15:51.285, Dec (J2000) = +13:06:56.10, calibrated with Gaia DR3 stars. This position agrees with the ones reported to TNS as comments by H. Yamaoka (correction to Itagaki's initial report) and K. Yoshimoto. SN 2024gy is located in the disk of the nearly edge-on galaxy NGC 4216, one of the largest and brightest galaxies of the Virgo cluster. We encourage follow-up observations. This work makes use of observations from the Las Cumbres Observatory global telescope network (program IAC2023B-008).