What to image in June with the ZWO Seestar S30 Pro

Shortest nights of the year; above about 55° there is no true darkness at all. Globular clusters and planetary nebulae, being small and bright, are the targets for a twilight sky. Cygnus and the Milky Way rise late; the season proper starts next month.

Moon in June 2027: new on 4 Jun, full on 19 Jun. Broadband targets (galaxies, clusters) want the week either side of new; emission nebulae behind a dual-band filter tolerate the rest.

42 targets transit near midnight in June. From a suburban sky the Seestar S30 Pro gets a solid image of 36 of them in under an hour each; 6 need longer, or a darker sky, or several nights. Times below use the recommended filter and 10 s subs.

Solid image with the ZWO Seestar S30 Pro, sorted by the Bortle 6 figure. Each link opens the full Bortle 1 to 9 table with sub-length and filter comparisons.
Target	Type	Bortle 4	Bortle 6	Bortle 8
Butterfly ClusterScorpius	Open cluster	5 min30 subs	5 min30 subs	6 min39 subs
Ptolemy's ClusterScorpius	Open cluster	5 min30 subs	5 min30 subs	6 min39 subs
Wild Duck ClusterScutum	Open cluster	5 min30 subs	5 min30 subs	7 min41 subs
M18Sagittarius	Open cluster	5 min30 subs	5 min30 subs	11 min64 subs
M21Sagittarius	Open cluster	5 min30 subs	5 min30 subs	7 min44 subs
M23Sagittarius	Open cluster	5 min30 subs	5 min30 subs	6 min39 subs
M25Sagittarius	Open cluster	5 min30 subs	5 min30 subs	6 min39 subs
M26Scutum	Open cluster	5 min30 subs	5 min30 subs	6 min39 subs
M92Hercules	Globular cluster	5 min30 subs	7 min42 subs	16 min97 subs
M28Sagittarius	Globular cluster	5 min30 subs	7 min44 subs	17 min100 subs
Ring NebulaLyra, dual-band	Planetary nebula	7 min43 subs	8 min49 subs	11 min69 subs
Hercules ClusterHercules	Globular cluster	5 min31 subs	8 min51 subs	20 min123 subs
M62Ophiuchus	Globular cluster	6 min34 subs	10 min58 subs	23 min140 subs
Sagittarius Star CloudSagittarius	Star cloud	6 min36 subs	10 min62 subs	25 min150 subs
M5Serpens	Globular cluster	7 min41 subs	12 min71 subs	29 min175 subs
Cat's Eye NebulaDraco, dual-band	Planetary nebula	10 min63 subs	12 min73 subs	18 min108 subs
Turtle NebulaHercules, dual-band	Planetary nebula	10 min63 subs	12 min73 subs	18 min108 subs
Blinking PlanetaryCygnus, dual-band	Planetary nebula	10 min63 subs	12 min73 subs	18 min108 subs
M80Scorpius	Globular cluster	7 min45 subs	13 min76 subs	30 min182 subs
M22Sagittarius	Globular cluster	8 min49 subs	14 min86 subs	36 min215 subs
M55Sagittarius	Globular cluster	9 min54 subs	16 min96 subs	40 min242 subs
M12Ophiuchus	Globular cluster	9 min56 subs	17 min100 subs	42 min254 subs
M70Sagittarius	Globular cluster	11 min67 subs	19 min114 subs	46 min278 subs
M69Sagittarius	Globular cluster	11 min67 subs	19 min117 subs	48 min290 subs
M71Sagitta	Globular cluster	13 min77 subs	22 min132 subs	54 min323 subs
Lagoon NebulaSagittarius, dual-band	Emission nebula	19 min113 subs	24 min142 subs	40 min240 subs
Dumbbell NebulaVulpecula, dual-band	Planetary nebula	20 min118 subs	24 min144 subs	39 min232 subs
M19Ophiuchus	Globular cluster	13 min80 subs	25 min148 subs	1 h 04 min383 subs
M14Ophiuchus	Globular cluster	14 min87 subs	26 min158 subs	1 h 07 min403 subs
Spindle GalaxyDraco	Galaxy	16 min94 subs	27 min164 subs	1 h 08 min406 subs
Omega NebulaSagittarius, dual-band	Emission nebula	22 min133 subs	27 min165 subs	46 min277 subs
M10Ophiuchus	Globular cluster	17 min101 subs	32 min191 subs	1 h 24 min502 subs
M54Sagittarius	Globular cluster	18 min106 subs	33 min198 subs	1 h 26 min517 subs
M9Ophiuchus	Globular cluster	21 min124 subs	39 min235 subs	1 h 43 min618 subs
M56Lyra	Globular cluster	25 min151 subs	47 min283 subs	2 h 03 min738 subs
Trifid NebulaSagittarius, dual-band	Emission nebula	41 min245 subs	53 min317 subs	1 h 34 min564 subs
M107Ophiuchus	Globular cluster	35 min209 subs	1 h 09 min412 subs	3 h 06 min1,116 subs
Eagle NebulaSerpens, dual-band	Emission nebula	56 min338 subs	1 h 14 min442 subs	2 h 13 min798 subs
M4Scorpius	Globular cluster	43 min257 subs	1 h 26 min517 subs	3 h 56 min1,418 subs
NGC 6781Aquila, dual-band	Planetary nebula	2 h 29 min896 subs	3 h 16 min1,175 subs	5 h 57 min2,140 subs
Pinwheel GalaxyUrsa Major	Galaxy	2 h 31 min908 subs	5 h 21 min1,927 subs	15 h5,446 subs
Abell 39Hercules, dual-band	Planetary nebula	19 h6,979 subs	26 h9,526 subs	51 h18,327 subs

Other telescopes in June: Seestar S50 · Seestar S50 Pro · Seestar S30 · DWARF 3 · 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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