How to find NGC2331 using Gemini

This guide uses bright stars first, then narrows the field for a telescope or binocular finder. Use Gemini as the main sky landmark.

Follow the route from one recognizable star to the next until you reach NGC2331.

NGC2331 is 12° above the horizon toward the northeast.

Begin with Gemini, then follow the reference stars toward NGC2331.

Gemini

Recognize the characteristic star pattern of Gemini before following the route.

Identify Castor in or near Gemini; the chart shows its position relative to the guide.

From Castor, move about 5.7° toward the southwest until you reach HYG 35152.0.

From HYG 35152.0, move about 2.1° toward the west until you reach NGC2331. This is the target field.