phd2 ☆
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Description:
Telescope guiding software
Type: Cask  |  Latest Version: 2.6.14@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Other
Tags: astronomy astrophotography telescope guiding science
Install: brew install --cask phd2
About:
PHD2 is a free, open-source telescope guiding application designed to keep astronomical targets precisely centered during long-exposure imaging. It provides robust, real-time corrections to a telescope mount based on input from an autoguider camera. Its primary value is enabling sharp, detailed astrophotographs by compensating for tracking errors in the mount.
Key Features:
  • Cross-platform support (Windows, macOS, Linux)
  • Advanced guiding algorithms (Multi-star, Loop-Guiding)
  • Intuitive user interface with built-in equipment profiles
  • Supports ASCOM, INDI, and native camera interfaces
Use Cases:
  • Long-exposure deep-sky astrophotography
  • Precise centering of celestial objects for scientific imaging
  • Automated telescope control during imaging sessions
Alternatives:
  • Guidemaster – A simpler, lightweight autoguider, often preferred for basic setups on Linux.
  • MetaGuide – Focuses on high-speed guiding and fringe detection, often used with specific camera types.
Version History
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