Screenshot of position of SN2023ldh from Transient Name Server (TNS). SN2023ldh exploded obviously at a somewhat brighter speck that is a star formation region.
SN2023ldh was a type II supernova discovered 2023 May 28. Type II supernovae are core collapse supernovae of massive stars leaving a neutron star or possibly even a stellar black hole. Such massive stars are typical for giant star formation regions that appear as brighter specks in a galaxy even over distances of dozens of millions of lightyears.

Left: Image of 2024 March 10.075 UT. Image size: 400%. The position of SN2023ldh is marked by a red circle. The somewhat brighter speck inside the circle is a star formation region. Refractor 140 mm @ f/5.4 - Camera Atik 460EX - Exposures: 21 x 180 s through luminance filter.
Right: Image of SN2022oqm subtracted from left image and contrast enhanced. SN2022oqm is clearly visible as a black dot. However, SN2023ldh is not visible as a bright dot inside the red circle. The brightness of the SN has fallen below the brightness of the star formation region that is seen in the left image as a somewhat brighter speck. SN2023ldh is no longer detectable on 2024 March 10.

Images by M. Mrotzek