There are quite a few LMC planetary nebula visible in large amateur scopes (18"-20"), but they are dim — the brightest ones are only 15th mag (V) and stellar. So, you need to a detailed finder chart to identify the field and a filter (narrowband or O-III) to confirm you're on the right "star".
Here are two that I viewed with a 25" in April '19 from Coonabarabran. I showed these to Andrew Murrell and Gary Kopff and they were quite surprised to find they were visible without much difficulty.
The SMP designations are from the 1978 paper "The planetary nebula systems of the Magellanic Clouds" by Sanduleak, MacConnell and Philip (
http://articles.adsabs.harvard.edu/f...ASP...90..621S)
Steve Gottlieb
SMP 73
05 31 21.9 -70 40 45
V = 14.7; Size 0.3"
At 244x, SMP 73 was visible unfiltered as a mag 14.7 star forming the south vertex of a small isosceles triangle with two mag 14 stars 0.6' NW and 0.9' N. It was easy to verify as there was a very good contrast gain blinking with a UHC-style filter (NPB). Only the brighter star to the north was still faint visible using the filter but the PN appeared much brighter. The planetary is located 2.3' NE of cluster S-L 539, which made pinpointing the position very easy.
SMP 52
05 21 23.8 -68 35 34
V = 14.8; Size 0.7"
At 244x, visible unfiltered as a mag 14.8 "star", forming a double with a mag 15.5 star [18" NE]. There was a strong contrast gain adding a NPB filter and SMP 52 popped out in the field!
The location was very easy to pinpoint — directly in a line with a mag 10.2 star 3' ESE and a mag 11.0 star 6' ESE. The two brighter stars and the planetary are equally spaced. The bright LMC cluster NGC 1949 is 21' ENE.
