Sky Tools 4 Jun 2026

Let’s walk through a practical scenario: You own a 5-inch refractor and an ASI2600MM camera. You want to image the next month.

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Once your profile is set, the magic happens. If you switch from your wide-field refractor to your SCT (Schmidt-Cassegrain Telescope), the "Tonight’s Best" list completely changes. The software filters out objects that are too faint or too large for the selected instrument. It calculates the True Field of View (TFOV) and Exit Pupil, ensuring you never waste time hunting for an object that is physically impossible to fit in your eyepiece. Let’s walk through a practical scenario: You own