15. Options

Options (the bottom of the sidebar) holds Galileo's settings, one page per area, in the same order as the main menu. Equipment details live on the Equipment pages; Options is for how Galileo behaves.

Every setting has detailed built-in help — hover it, press F1, or click the ? beside the page title. This article is the overview. See Built-in Help.

Contents

• Per-Pier or global
• Star Atlas
• Planning
• Imaging
• Focus
• Solve
• Library
• Plugins
• Pages with no settings yet

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Per-Pier or global

Focus and Solve settings are saved per Pier, so each telescope keeps its own defaults — choose the Pier in the top bar first. Star Atlas horizons belong to the selected Observatory. Imaging, Planning, Library and Plugins apply to all of Galileo.

Star Atlas

Describes your horizon: the trees, buildings and hills that block the sky. Upload a text file of azimuth/altitude pairs or edit the table by hand. The Star Atlas shades the obstructions when Horizon is ticked, and What's Up Tonight takes them into account.

Planning

• Do not slew where obstructed — refuses any slew into the horizon you described, from any screen or from a sequence.
• Cache All Catalog Thumbnails — downloads sky-survey pictures for the whole catalog ahead of time so Targets shows them instantly. It can take hours and can be cancelled and resumed.

Imaging

The pixel format (BITPIX) of saved frames. Leave it on Auto unless other software needs one fixed format.

Focus

The default autofocus settings for the Pier — step size, number of points, exposure and backlash compensation. They seed the Focus screen and are used by autofocus blocks in sessions.

Solve

How plate solving runs for the Pier: the ASTAP program's location, a field-of-view hint, search radius and downsample factor.

Library

Where your images live and how the Library behaves, on four tabs:

Tab	What it covers
General	Incoming and repository folders, temporary folder, FITS compression, the external FITS viewer, and which warnings to skip.
Cloud Sync	Google Cloud Storage bucket, authentication file, sync profile and auto-cleanup.
Calibration	How many frames are needed to build a master calibration frame automatically.
Smart Telescopes	Accounts for downloading images from iTelescope and from an SFTP server. iTelescope's certificate is verified by default; there is a tick box to turn that off if your connection fails with a certificate error.

Plugins

Install, enable, disable and remove plugins, and browse the plugin marketplace. See the Plugin Developers Guide if you want to write one.

Pages with no settings yet

Options › Equipment, Guiding and Science are placeholders; their settings are on the screens themselves.