NGC 6309
Box Nebula
Date:    2021 4 17   Time (AEST):   22h34m49s
Total Exposure Time:    23m
Sub-frames:    23 x 60s
Equipment:    EdgeHD 925, ASI294MC Pro, Skywatcher AZ-EQ6 Pro

A Rough Guide to This Object...

Type: Planetary nebula   
Size: ? light-years  
Apparent size: 0.32'   
Distance: ~6,500 light-years  
Apparent magnitude: 11.5  
Constellation: Ophiuchus

References:
https://en.wikipedia.org/wiki/NGC_6309