M35 & NGC2158

Open Clusters M35 and NGC2158

Object Info

Type

Open Cluster

Constellation

Gemini

Distance

2,800 ly & 11,200 ly

Date

January 14, 2026

Location

Descanso, CA

Exposure

Lum 20x3, R 10x3, G 10x3, B 10x3 (bin 1x1)

Notes

Interesting contrast between the younger Blue stars of M35 and the older (also 9K light years further) Red stars of NGC2158.

Optics

DSI RC10C Corrected RC Astrograph

Focal Length

1867mm @f/7.3

Mount

Astro-Physics 1200GTO

Camera

Player One Zeus 455M PRO

Focuser

Built-in Secondary Focuser

Filters

Antlia LRGB-V Pro series

Software

NINA, PixInsight, Photoshop