Column explanations:
Object: Messier number if preceded by M, otherwise NGC number.
Con.: Three letter abbreviation for constellation the object is in.
Mag.: Magnitude (collected from various sources). The MinAp column is probably a better gauge of difficulty.
RA and Dec: The object's coordinates in Right Ascension and Declination.
Rating: My personal rating of the object on a scale from 1 (nonexistent) to 10 (the best). Take this with a grain of salt.
Season: The Northern Hemisphere season when the object is best-placed for observation in the evening sky.
Type: Class of nebula. Em=Emission, Ref=Reflection, P=Planetary, SNR=Supernova Remnant.
MinAp: Minimum aperture required to reveal the object, in mm. "7"=Naked eye, "35"=7x35 binoculars, "60"=60mm refractor, "200"=Celestron C8. An asterisk indicates the object may be visible, but requires a larger aperture to be well-seen or easily identified. These values are for my eyes under a dark or fairly dark sky. Your results may vary. Also note that I haven't used a 100mm or 150mm telescope, which might catch some of the 200mm objects.
Object Con. Mag. RA Dec Rating Season Type MinAp M42-43 Ori 4.0 05 34.7 -05 23 10.0 W Em 7 M17 Sgr 7.0 18 20.1 -16 11 10.0 S Em 35 M27 Vul 8.2 19 59.1 22 41 10.0 S P 35 M57 Lyr 9.0 18 53.1 33 01 10.0 S P 60 M8 Sgr 5.1 18 02.4 -24 23 9.5 S Em 7 2392 Gem 8.0 07 28.5 20 55 9.5 W P 60 M97 UMa 11.1 11 14.1 55 05 9.5 Sp P 60 M76 Per 12.2 01 41.2 51 31 9.5 F P 60 7293 Aqr 6.5 22 29.0 -20 51 9.0 F P 35 M78 Ori 8.3 05 46.2 00 03 9.0 W Ref 60 7009 Aqr 8.3 21 03.6 -11 25 9.0 F P 60* 3242 Hya 8.6 10 24.2 -18 35 9.0 Sp P 60* 6543 Dra 8.8 17 58.6 66 38 9.0 S P 60* 7662 And 9.2 23 25.3 42 29 9.0 F P 60* 1535 Eri 9.6 04 13.7 -12 46 9.0 W 200 6818 Sgr 10.0 19 43.3 -14 11 9.0 S P 200 6905 Del 11.9 20 21.9 20 04 9.0 S P 200 6302 Sco 11.8 17 13.0 -37 06 8.5 S P 200 2261 Mon 12.2 06 38.5 08 44 8.5 W Em 200 M1 Tau 8.4 05 33.8 22 01 8.0 W SNR 60 2438 Pup 10.2 07 41.3 -14 41 8.0 W P 200 40 Cep 10.7 00 12.4 72 28 8.0 F P 200 604 Tri 11.2 01 33.8 30 44 8.0 F Em 200 6781 Aql 11.8 19 17.9 06 31 8.0 S P 200 M20 Sgr 8.5 18 01.6 -23 02 7.5 S Em/Ref 35* 4361 Crv 9.8 12 24.0 -18 43 7.5 Sp P 200 1927 Lep 10.7 05 26.9 -12 42 7.5 W P 200 1931 Aur 11.3 05 30.7 34 15 7.5 W Em 200 6804 Aql 12.0 19 31.0 09 12 7.5 S P 200 6751 Aql 12.0 19 05.2 -06 01 7.5 S P 200 M16 Serpens 6.6 18 18.2 -13 47 7.0 S Em 35* 6210 Her 9.3 16 44.1 23 49 7.0 Sp P 200 6572 Oph 9.0 18 11.5 06 51 7.0 S P 200