M36

NGC 1960 · Open cluster in Auriga

Magnitude
6.3
Size
12′
Effective surface brightness
20.0 mag/arcsec²
Best months
Nov, Dec, Jan
Declination
+34°
Filter
None (broadband target)

The smallest and brightest of the three Auriga Messier clusters. Compact, blue stars.

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 M36, 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 subs28%5 min30 subs5 min30 subs5 min30 subs
ZWO Seestar S50 Pro10 s subs14%5 min30 subs5 min30 subs5 min31 subs
ZWO Seestar S3010 s subs17%5 min30 subs5 min30 subs5 min30 subs
ZWO Seestar S30 Pro10 s subs9%5 min30 subs5 min30 subs5 min33 subs
DwarfLab DWARF 315 s subs12%8 min30 subs8 min30 subs8 min30 subs
DwarfLab DWARF mini15 s subs17%8 min30 subs8 min30 subs8 min30 subs
DwarfLab Draco30 s subs16%15 min30 subs15 min30 subs15 min30 subs
DwarfLab DWARF II15 s subs11%8 min30 subs8 min33 subs14 min58 subs
Vaonis Vespera II10 s subs14%5 min30 subs5 min30 subs5 min30 subs
Vaonis Vespera Pro10 s subs12%5 min30 subs5 min33 subs10 min61 subs
Vaonis Vespera 310 s subs14%5 min30 subs5 min30 subs5 min30 subs
Vaonis Vespera Pro 210 s subs12%5 min30 subs5 min32 subs10 min59 subs
Unistellar eQuinox 24 s subs35%2 min30 subs2 min32 subs4 min53 subs
Unistellar Odyssey4 s subs36%8 min127 subs10 min144 subs15 min219 subs
Celestron Origin10 s subs23%5 min30 subs5 min30 subs5 min30 subs
Celestron Origin Mark II10 s subs27%5 min30 subs5 min30 subs5 min30 subs

Open in the calculator

Imaging the open cluster

Open clusters are the easiest targets in the sky. The stars are bright, so the aim is colour and tight stars rather than depth: short subs, no filter, and stop before the bright members saturate. The nominal time here gets you clean star colour; more integration only adds background stars.

Per-telescope pages