The big (and faint) planetary nebula IC 5148 in the constellation of Grus was not on my list of drawing objectives. But az I was sitting at Hakos and flipping through the wonderful photo book of a German amateur astronomer it immediately made it to that list. Unfortunately I don't remeber the author's name or the book title.

The nebula is about 2' in size which is quite large. It is perfectly round and quite faint. The outer edge is slightly diffuse. The inner 1/3 of the nebula is a hole which is filled with fainter nebulosity. The inner edge is very diffuse. There are minimal intensity variations in the ring between the edges. The brighter areas give the nebula a slighty boxy, square appearance. Comparing the observed details with the photos, I was not off (see below).

The central star is faint, 16.1^m (based on Gaia DR3 G magnitude data) but definitely visible. It adds a lot to the beauty of IC 5148.

The perceived structure doesn't change using an [OIII] filter.

Comparison with the photograph

You can see the European Southern Observatory's photo of IC 5148 made with the 3.58 meter NTT telescope to the left along with my inverted drawing. I rotated and cropped my drawing but it doesn't cover the full field of the photo so I filled the bottom right corner with black. Note the blue color of the central star on the photo.