RCW 103
Date:    2023 8 16   Time (AEST):   20h02m05s
Total Exposure Time:    10h
Sub-frames:    60 x 600s
Equipment:    EdgeHD 925, ASI294MC Pro, Skywatcher AZ-EQ6 Pro

A Rough Guide to This Object...

Type: Supernova remnant   
Size: ~33 light-years  
Apparent size: ~9'   
Distance: 10,437 light-years  
Apparent magnitude: -  
Constellation: Norma

Notes: This supernova explosion occurred 2000 years ago. Contains a central neutron star with an exceptionally long period of 6.7 hours.

References:
https://en.wikipedia.org/wiki/RCW_103