From a list from Brian Skiff I got this list of naked-eye objects:
ftp://ftp.lowell.edu/pub/bas/deepsky/nakedeye.dso
And I marked my trophies in
bold so there is a lot to discover yet....
Although objects like California Nebula and IC1396 really require not only a UHC but also in the middle of the outback (or on top of Cerro Armazones or, even better Antarctica hightlands like Dome C).
I saw NGC7000 with a UHC.
What did you see ?
M2,
3,4,
5,6,
7,
8,
11,
13,15,16,17,20,22,23,24,25,
31,
33,34,35,36,37,38,39,
41,
42,
43,
44,
45,46,47,48,50,67,81,83?,
92,93
NGC/IC
NGC 55 ? [probably visible if NGC 253 can be seen]
NGC 104 = 47 Tuc
NGC 253
NGC 346 = in SMC
NGC 362
NGC 457
NGC 752
NGC 869 = h Per
NGC 884 = chi Per
NGC 1499 = California Neb. [requires UHC or H-beta filter]
NGC 1528 ? [probably straightforward, haven't tried]
NGC 1647 ?
NGC 1746 ?
NGC 1977 etc (second * of Ori Sword)
NGC 1980 = iota Ori group
NGC 1981 (top * of Ori Sword)
NGC 2070 = 30 Dor = Tarantula
NGC 2169 ?
NGC 2244 (Rosette) [cluster easy, nebula requires UHC or [OIII] filter]
NGC 2264
NGC 2281 ?
NGC 2301 ?
NGC 2451
NGC 2477
NGC 2516
NGC 2546
NGC 2547
IC 2391 = omicron Vel
NGC 2808 ?
NGC 3114
IC 2581
NGC 3293
NGC 3372
IC 2602 = theta Car = southern Pleaides
NGC 3532
NGC 3766 ? [background may be too bright]
NGC 4755 = kappa Cru = Jewelbox
NGC 5128 ? [bright background, but several positive reports]
NGC 5139 = omega Cen
NGC 5460 ? [probably straightforward from the south]
NGC 6025
NGC 6067 [similar to M11]
NGC 6124
NGC 6193
NGC 6231 [plus Tr 24 below]
NGC 6242 ?
NGC 6281 ?
NGC 6383
NGC 6397
IC 4665
NGC 6633
IC 4756
NGC 6752
NGC 7000 = North America Neb.
NGC 7293 = Helix Neb.
IC 1396
NGC 7789
Others:
SMC
Stock 2 ? [have tried this several times, but background may be too bright]
Melotte 20 = alpha Per cluster
Melotte 25 = Hyades
LMC
Sharpless 264 = lambda Ori Neb.
Sharpless 276 = Barnard's Loop
Melotte 111 = Coma
Trumpler 24
Collinder 399 = "Coathanger" [not a physical cluster]