How Many Subs

What to image in July with the DwarfLab DWARF 3

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 DWARF 3 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 15 s subs.

Solid image with the DwarfLab DWARF 3, 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 cluster8 min30 subs8 min30 subs8 min34 subs
Ptolemy's ClusterScorpiusOpen cluster8 min30 subs8 min30 subs8 min34 subs
Wild Duck ClusterScutumOpen cluster8 min30 subs8 min30 subs9 min37 subs
M18SagittariusOpen cluster8 min30 subs8 min30 subs14 min57 subs
M21SagittariusOpen cluster8 min30 subs8 min30 subs10 min39 subs
M23SagittariusOpen cluster8 min30 subs8 min30 subs8 min34 subs
M25SagittariusOpen cluster8 min30 subs8 min30 subs8 min34 subs
M26ScutumOpen cluster8 min30 subs8 min30 subs8 min34 subs
M39CygnusOpen cluster8 min30 subs8 min30 subs8 min34 subs
M29CygnusOpen cluster8 min30 subs8 min33 subs18 min73 subs
NGC 6939CepheusOpen cluster8 min30 subs8 min33 subs18 min73 subs
M92HerculesGlobular cluster8 min30 subs9 min36 subs21 min86 subs
M28SagittariusGlobular cluster8 min30 subs9 min38 subs22 min88 subs
Ring NebulaLyra, dual-bandPlanetary nebula8 min34 subs10 min39 subs14 min57 subs
Hercules ClusterHerculesGlobular cluster8 min30 subs11 min44 subs27 min108 subs
M62OphiuchusGlobular cluster8 min30 subs12 min49 subs31 min123 subs
Sagittarius Star CloudSagittariusStar cloud8 min30 subs13 min52 subs33 min132 subs
Cat's Eye NebulaDraco, dual-bandPlanetary nebula12 min48 subs14 min57 subs22 min89 subs
Turtle NebulaHercules, dual-bandPlanetary nebula12 min48 subs14 min57 subs22 min89 subs
Blinking PlanetaryCygnus, dual-bandPlanetary nebula12 min48 subs14 min57 subs22 min89 subs
Saturn NebulaAquarius, dual-bandPlanetary nebula12 min48 subs14 min57 subs22 min89 subs
M15PegasusGlobular cluster8 min32 subs14 min57 subs36 min146 subs
M2AquariusGlobular cluster8 min34 subs15 min61 subs39 min157 subs
M80ScorpiusGlobular cluster9 min37 subs16 min65 subs40 min161 subs
M30CapricornusGlobular cluster10 min39 subs17 min70 subs44 min176 subs
M22SagittariusGlobular cluster10 min39 subs18 min73 subs47 min189 subs
M55SagittariusGlobular cluster11 min43 subs20 min81 subs53 min213 subs
M12OphiuchusGlobular cluster11 min45 subs21 min85 subs56 min224 subs
M70SagittariusGlobular cluster13 min54 subs24 min97 subs1 h 01 min245 subs
M69SagittariusGlobular cluster13 min54 subs25 min99 subs1 h 04 min256 subs
Lagoon NebulaSagittarius, dual-bandEmission nebula19 min77 subs25 min102 subs48 min191 subs
Dumbbell NebulaVulpecula, dual-bandPlanetary nebula21 min84 subs27 min107 subs47 min187 subs
M75SagittariusGlobular cluster15 min62 subs28 min112 subs1 h 10 min282 subs
M71SagittaGlobular cluster15 min62 subs28 min112 subs1 h 11 min285 subs
Omega NebulaSagittarius, dual-bandEmission nebula23 min91 subs30 min120 subs55 min221 subs
M19OphiuchusGlobular cluster16 min63 subs31 min124 subs1 h 24 min337 subs
M14OphiuchusGlobular cluster17 min69 subs33 min133 subs1 h 29 min355 subs
M10OphiuchusGlobular cluster20 min79 subs40 min161 subs1 h 50 min442 subs
M54SagittariusGlobular cluster21 min84 subs42 min167 subs1 h 54 min455 subs
M9OphiuchusGlobular cluster24 min97 subs49 min198 subs2 h 16 min544 subs
Trifid NebulaSagittarius, dual-bandEmission nebula39 min157 subs55 min221 subs1 h 51 min445 subs
M56LyraGlobular cluster29 min118 subs59 min238 subs2 h 42 min650 subs
Eagle NebulaSerpens, dual-bandEmission nebula53 min212 subs1 h 16 min305 subs2 h 37 min628 subs
M107OphiuchusGlobular cluster40 min161 subs1 h 26 min345 subs4 h 05 min982 subs
Eastern Veil NebulaCygnus, dual-bandSupernova remnant1 h 07 min267 subs1 h 37 min390 subs3 h 24 min816 subs
M72AquariusGlobular cluster50 min202 subs1 h 44 min417 subs4 h 50 min1,160 subs
North America NebulaCygnus, dual-bandEmission nebula1 h 12 min289 subs1 h 46 min424 subs3 h 42 min890 subs
M4ScorpiusGlobular cluster49 min197 subs1 h 48 min433 subs5 h 12 min1,248 subs
Western Veil NebulaCygnus, dual-bandSupernova remnant1 h 18 min312 subs1 h 55 min460 subs4 h 03 min972 subs
Pelican NebulaCygnus, dual-bandEmission nebula1 h 39 min396 subs2 h 28 min591 subs5 h 16 min1,266 subs
Iris NebulaCepheusReflection nebula1 h 13 min292 subs2 h 45 min659 subs8 h 02 min1,927 subs
Elephant's Trunk NebulaCepheus, dual-bandEmission nebula1 h 56 min465 subs2 h 55 min700 subs6 h 18 min1,511 subs
Tulip NebulaCygnus, dual-bandEmission nebula1 h 56 min465 subs2 h 55 min700 subs6 h 18 min1,511 subs
NGC 6781Aquila, dual-bandPlanetary nebula2 h 19 min555 subs3 h 22 min808 subs7 h1,682 subs
Crescent NebulaCygnus, dual-bandEmission nebula2 h 17 min547 subs3 h 27 min829 subs7 h 31 min1,805 subs
Cocoon NebulaCygnus, dual-bandEmission nebula2 h 25 min581 subs3 h 39 min875 subs7 h 52 min1,889 subs
Fireworks GalaxyCygnusGalaxy3 h 16 min783 subs7 h 37 min1,829 subs23 h5,442 subs
NGC 6914CygnusReflection nebula3 h 50 min919 subs8 h 48 min2,113 subs26 h6,237 subs
Abell 39Hercules, dual-bandPlanetary nebula17 h3,985 subs26 h6,290 subs59 h14,256 subs

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

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