Celestron StarPointer Pro Reticle Finderscope Setup Guide

Quick Answer

Install the StarPointer Pro on your telescope, then align it to the main scope using a distant daytime target or a bright star at night.

Setup Steps

1. Mount the finderscope: Slide the StarPointer Pro onto the dovetail bracket on your telescope tube. Tighten the thumbscrew just enough to hold it firmly—overtightening can strip the plastic threads. Check that the finderscope sits level and points in the same general direction as the main telescope.
2. Power on and adjust brightness: Turn the brightness dial until the reticle is clearly visible against the sky background. Start at a medium setting; too bright can wash out faint stars. If the reticle flickers or disappears, the battery may be low—replace with a fresh CR2032.
3. Choose a daytime target: Point the main telescope at a distant, stationary object like a telephone pole or a rooftop antenna. Center it in a low-power eyepiece. Lock the telescope's altitude and azimuth axes. Avoid heat shimmer from pavement or rooftops—it makes the target appear fuzzy.
4. Align the reticle: Look through the StarPointer Pro and adjust the two alignment screws (azimuth and altitude) until the reticle circles are centered on the same target. Work slowly: each turn moves the reticle a small amount. Do not move the telescope while adjusting the finderscope, or you will have to start over.
5. Verify at night: After sunset, point the telescope at a bright star (like Vega or Polaris). Center it in the eyepiece, then check that the star falls inside the inner reticle circle. If not, repeat the daytime alignment process. A star that drifts out of the reticle over time may indicate a loose mounting bracket—retighten the thumbscrew.

Product Facts

• Celestron StarPointer Pro Reticle Finderscope - 51635: The StarPointer Pro features an ultra-wide 40mm optical window with 1x magnification and a dual circle reticle instead of a single dot. This design lets you see the reticle from multiple angles and distances, making it easier to keep your eye aligned while centering objects.