How to find NGC3166 using Leo

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

Follow the route from one recognizable star to the next until you reach NGC3166.

NGC3166 is 14° above the horizon toward the east.

Begin with Leo, then follow the reference stars toward NGC3166.

Leo

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

Identify Regulus in or near Leo; the chart shows its position relative to the guide.

From Regulus, move about 5.8° toward the south until you reach HYG 49739.0.

From HYG 49739.0, move about 3° toward the south until you reach NGC3166. This is the target field.