C/2023 A3 (Tsuchinshan-ATLAS) 2023-Aug-06 Gianluca Masi

The image above comes from the average of seven, 180-second exposures, unfiltered, remotely taken with the Celestron C14+Paramount ME+SBIG ST8-XME robotic unit available as part of the Virtual Telescope Project.

In the image, sporting a scale of 0.75″/pixel, the comet clearly shows a coma and likely a thin tail pointing eastwards. We measured it as bright as mag. 15.8 (unfiltered, R-mags for the reference stars from the Gaia DR2 star catalogue). At the imaging time, the target was lower than 30 deg. above the western horizon; several artificial satellites crossed the field of view while imaging.