- Planetary Nebulas (Aur) -

And (1) Cep (9) Del (3) Lac (4) Oph (1) Sge (4)
Aql (22) Cet (1) Dra (2) Leo (1) Ori (4) Sgr (3)
Aqr (2) Cnc (1) Eri (1) Lep (1) Peg (2) Tau (1)
Aur (2) Com (1) Gem (3) Lyn (1) Per (4) UMa (1)
Cam (2) Crv (1) Her (6) Lyr (5) Pup (2) Vul (3)
Cas (11) Cyg (20) Hya (2) Mon (1) Sct (2)

IC2120 (PN)

../dss/dss1_051810.30_+373327.40_5_web.jpg
Image source: DSS I - 5×5'
Name: IC2120, PK169-0.1, M2-3
Type: PN
Constellation: Aur
Coordinates: 05h18m10.30s / +37°33'27.40"
Brightness / Size: 12.0 mag / 1.0x1.0'
8" f/4, 88x + UHC, Bortle 6-, SQM-L 19.0
I also tried it at 64x with UHC and [OIII] filter and from 133x up to 266x.
FAILED

IC2149 (PN)

../dss/dss2blue_055623.86_+460617.50_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: IC2149, PK166+10.1
Type: PN
Constellation: Aur
Coordinates: 05h56m23.86s / +46°06'17.50"
Brightness / Size: 10.6 mag / 0.2x0.1'
70mm f/5.7, 67x, Bortle 6, SQM-L 19.1
At 22x stellar, rather faint. At 67x stellar, partially distinguishable from surrounding brighter stars. At 100x and 133x clearly visible as still very compact nebula. It appeared roundish, partly it seemed slightly oval.

EASY
8" f/6, 150x, Bortle 7, NELM 4.5
Very bright, compact. At 37x stellar, barely perceptible with direct vision, at 100x extended. At 150x the nebula appeared slightly elongated (NE-SW).
EASY