The M35 open cluster at the upper left is around 3,900 lightyears distant. The NGC 2158 cluster at bottom right is approximately 2 billion years old, consisting of older yellower stars. It is perhaps 9000 lightyears further away than M35.
This image is the result of approx 1.5h of data capture (47x2min) on an evening in December 2019.
ZWO ASI294MC Pro camera through an 8-inch Teleskop-Service Ritchey-Chretien reflector.
Date: 01/12/2019
Photographer: Graham Wilcock