How Many Subs

What to image in July with the Unistellar eQuinox 2

The Milky Way core is up after midnight: the Lagoon, Trifid, Eagle and Swan nebulae, low in the south from Britain and northern Europe but spectacular from the southern US and the southern hemisphere. Cygnus and the Veil are high by the small hours. Dual-band filter on for all of them.

Moon in July 2027: new on 4 Jul, full on 18 Jul. Broadband targets (galaxies, clusters) want the week either side of new; emission nebulae behind a dual-band filter tolerate the rest.

59 targets transit near midnight in July. From a suburban sky the eQuinox 2 gets a solid image of 42 of them in under an hour each; 17 need longer, or a darker sky, or several nights. Times below use the recommended filter and 4 s subs.

Solid image with the Unistellar eQuinox 2, sorted by the Bortle 6 figure. Each link opens the full Bortle 1 to 9 table with sub-length and filter comparisons.
TargetTypeBortle 4Bortle 6Bortle 8
Butterfly ClusterScorpiusOpen cluster2 min30 subs2 min32 subs4 min59 subs
Ptolemy's ClusterScorpiusOpen cluster2 min30 subs2 min32 subs4 min59 subs
M23SagittariusOpen cluster2 min30 subs2 min32 subs4 min59 subs
M25SagittariusOpen cluster2 min30 subs2 min32 subs4 min59 subs
M26ScutumOpen cluster2 min30 subs2 min32 subs4 min59 subs
M39CygnusOpen cluster2 min30 subs2 min32 subs4 min59 subs
Wild Duck ClusterScutumOpen cluster2 min30 subs2 min34 subs4 min64 subs
M21SagittariusOpen cluster2 min30 subs2 min36 subs5 min68 subs
M18SagittariusOpen cluster3 min39 subs3 min52 subs7 min99 subs
M29CygnusOpen cluster3 min50 subs4 min67 subs8 min127 subs
NGC 6939CepheusOpen cluster3 min50 subs4 min67 subs8 min127 subs
M92HerculesGlobular cluster4 min54 subs5 min76 subs10 min151 subs
M28SagittariusGlobular cluster4 min56 subs5 min79 subs10 min156 subs
Hercules ClusterHerculesGlobular cluster4 min66 subs6 min94 subs13 min192 subs
Ring NebulaLyraPlanetary nebula5 min70 subs6 min96 subs12 min187 subs
M62OphiuchusGlobular cluster5 min74 subs7 min106 subs15 min219 subs
Sagittarius Star CloudSagittariusStar cloud5 min79 subs8 min114 subs16 min235 subs
M15PegasusGlobular cluster6 min86 subs8 min125 subs17 min259 subs
M2AquariusGlobular cluster6 min92 subs9 min134 subs19 min280 subs
M80ScorpiusGlobular cluster6 min97 subs9 min139 subs19 min285 subs
M30CapricornusGlobular cluster7 min105 subs10 min151 subs21 min312 subs
Cat's Eye NebulaDracoPlanetary nebula7 min110 subs10 min156 subs21 min313 subs
Turtle NebulaHerculesPlanetary nebula7 min110 subs10 min156 subs21 min313 subs
Blinking PlanetaryCygnusPlanetary nebula7 min110 subs10 min156 subs21 min313 subs
Saturn NebulaAquariusPlanetary nebula7 min110 subs10 min156 subs21 min313 subs
M22SagittariusGlobular cluster7 min109 subs11 min160 subs22 min337 subs
M55SagittariusGlobular cluster8 min122 subs12 min180 subs25 min380 subs
M12OphiuchusGlobular cluster8 min128 subs13 min188 subs27 min398 subs
M70SagittariusGlobular cluster10 min146 subs14 min211 subs29 min435 subs
M69SagittariusGlobular cluster10 min149 subs15 min218 subs30 min455 subs
M75SagittariusGlobular cluster11 min168 subs16 min243 subs33 min500 subs
M71SagittaGlobular cluster11 min169 subs16 min245 subs34 min506 subs
M19OphiuchusGlobular cluster12 min187 subs19 min280 subs40 min602 subs
M14OphiuchusGlobular cluster13 min200 subs20 min298 subs42 min633 subs
Dumbbell NebulaVulpeculaPlanetary nebula16 min239 subs24 min353 subs50 min748 subs
M10OphiuchusGlobular cluster16 min242 subs24 min365 subs53 min792 subs
Lagoon NebulaSagittariusEmission nebula17 min249 subs25 min376 subs54 min816 subs
M54SagittariusGlobular cluster17 min252 subs25 min378 subs54 min814 subs
Omega NebulaSagittariusEmission nebula19 min286 subs29 min431 subs1 h 02 min929 subs
M9OphiuchusGlobular cluster20 min298 subs30 min449 subs1 h 05 min973 subs
M56LyraGlobular cluster24 min359 subs36 min539 subs1 h 18 min1,163 subs
M107OphiuchusGlobular cluster35 min521 subs53 min799 subs1 h 57 min1,763 subs
Trifid NebulaSagittariusEmission nebula39 min587 subs1 h907 subs2 h 14 min2,011 subs
M72AquariusGlobular cluster42 min629 subs1 h 04 min954 subs2 h 18 min2,078 subs
M4ScorpiusGlobular cluster43 min652 subs1 h 07 min1,009 subs2 h 29 min2,242 subs
Eagle NebulaSerpensEmission nebula56 min833 subs1 h 26 min1,295 subs3 h 13 min2,891 subs
Iris NebulaCepheusReflection nebula1 h 06 min994 subs1 h 43 min1,549 subs3 h 51 min3,468 subs
Eastern Veil NebulaCygnusSupernova remnant1 h 12 min1,086 subs1 h 53 min1,695 subs4 h 13 min3,798 subs
North America NebulaCygnusEmission nebula1 h 19 min1,186 subs2 h 04 min1,854 subs4 h 37 min4,160 subs
Western Veil NebulaCygnusSupernova remnant1 h 26 min1,296 subs2 h 15 min2,028 subs5 h 04 min4,557 subs
Pelican NebulaCygnusEmission nebula1 h 53 min1,692 subs2 h 57 min2,657 subs6 h 39 min5,991 subs
Elephant's Trunk NebulaCepheusEmission nebula2 h 15 min2,023 subs3 h 32 min3,183 subs7 h 59 min7,191 subs
Tulip NebulaCygnusEmission nebula2 h 15 min2,023 subs3 h 32 min3,183 subs7 h 59 min7,191 subs
NGC 6781AquilaPlanetary nebula2 h 29 min2,236 subs3 h 52 min3,485 subs8 h 40 min7,802 subs
Crescent NebulaCygnusEmission nebula2 h 41 min2,419 subs4 h 14 min3,814 subs9 h 36 min8,633 subs
Cocoon NebulaCygnusEmission nebula2 h 49 min2,528 subs4 h 25 min3,978 subs9 h 59 min8,989 subs
Fireworks GalaxyCygnusGalaxy3 h 04 min2,758 subs4 h 49 min4,340 subs11 h9,806 subs
NGC 6914CygnusReflection nebula3 h 32 min3,186 subs5 h 33 min4,992 subs12 h11,232 subs
Abell 39HerculesPlanetary nebula21 h19,247 subs34 h30,640 subs78 h70,013 subs

Other telescopes in July: Seestar S50 · Seestar S50 Pro · Seestar S30 · Seestar S30 Pro · DWARF 3 · DWARF mini · Draco · DWARF II · Vespera II · Vespera Pro · Vespera 3 · Vespera Pro 2 · Odyssey · Origin · Origin Mark II

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