OCs M35 + NGC 2158 + IC 2156/7

[nytecam]

Here's a line-up of 4 close OCs in the 'foot of Gemini' in M35;  NGC 2158 south proceeding and + IC 2156/7 a little further west.  M35 too large for my fov @ 1m fl but NGC 2158 well contained and resolved.  IC 2157 is a sparce cluster and IC 2156 ill-defined in catalogues and charts like Megastar and Wikisky to the small circle but it appears to contain very few stars and I suspect it applies to the larger asterism as outlined.

Used my obsy 30cm SCT+SX Lodestar-Cx2 camera here in London suburbs under a full moon - no worries !  Data on images ;-)

Nytecam

[nytecam]

Thanks guys for the likes - shame there's no comments :-)

[Martin Meredith]

The position you've marked for IC2156 coincides with the Dias catalogue, so I think the small circle on Megastar/Wikisky indeed does not show the full extent. The listed diameter for IC 2156 is 4 arcmins (with 45 members) compared to 5 arcmins for IC 2157 (66 members), which looks about right in your image. Both are at a similar distance  (6650 vs 6850 LYs). Nice one.

Martin

[nytecam]

Thanks Martin for your research - that clarifies it nicely :-)

Nytecam