Interesting target. Where is it?
All I could find was this
ASYMMETRICAL BUTTERFLY | 09:27:04 | -56:06:18 | PLANETARY | 11.8 | NGC2899 ;HARTUNG 388 & PICTURE PLATE 61;LOW SURFACE BRIGHTNESS USE OIII FILTER; DISCOVERED 1835 PN VBRC2 AKA SA3-10 IN SAME LOW POWER FIELD SEE SEPARATE NOTES
and this seems to have been discovered in 1835
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