M62

NGC 6266 · Globular cluster in Ophiuchus

Magnitude
6.5
Size
15′
Effective surface brightness
20.8 mag/arcsec²
Best months
May, Jun, Jul
Declination
-30°
Filter
None (broadband target)

A bright but lopsided globular near the galactic centre, low from northern latitudes.

Reachable from mid-northern latitudes (UK, northern US, central Europe) and from the south.

How long with each smart telescope

Total integration for a solid image of the M62, default sub length, recommended filter, and how much of each frame it fills. Click a cell for the full Bortle 1 to 9 table.
TelescopeIn frameBortle 3 (rural)Bortle 5 (suburban)Bortle 7 (urban edge)
ZWO Seestar S5010 s subs35%5 min30 subs6 min35 subs13 min78 subs
ZWO Seestar S50 Pro10 s subs18%5 min30 subs6 min39 subs14 min85 subs
ZWO Seestar S3010 s subs21%5 min30 subs6 min37 subs13 min80 subs
ZWO Seestar S30 Pro10 s subs11%5 min30 subs7 min41 subs15 min90 subs
DwarfLab DWARF 315 s subs15%8 min30 subs8 min34 subs19 min78 subs
DwarfLab DWARF mini15 s subs21%8 min30 subs8 min30 subs13 min52 subs
DwarfLab Draco30 s subs20%15 min30 subs15 min30 subs15 min30 subs
DwarfLab DWARF II15 s subs14%16 min64 subs20 min82 subs40 min162 subs
Vaonis Vespera II10 s subs17%5 min30 subs6 min35 subs13 min78 subs
Vaonis Vespera Pro10 s subs15%10 min58 subs13 min79 subs28 min170 subs
Vaonis Vespera 310 s subs17%5 min30 subs6 min34 subs12 min75 subs
Vaonis Vespera Pro 210 s subs15%9 min55 subs12 min75 subs27 min162 subs
Unistellar eQuinox 24 s subs44%4 min68 subs6 min83 subs10 min150 subs
Unistellar Odyssey4 s subs45%22 min336 subs26 min392 subs42 min636 subs
Celestron Origin10 s subs29%5 min30 subs5 min30 subs5 min30 subs
Celestron Origin Mark II10 s subs34%5 min30 subs5 min30 subs5 min30 subs

Open in the calculator

Imaging the globular cluster

Globular clusters are point sources packed tight, so they come quickly: the core resolves into stars within a handful of minutes on any smart scope. More time deepens the halo and pulls in the faint outer members. Use short subs so the core does not saturate into a white blob, and no filter.

Per-telescope pages