Astro Reference

  • ADS Abstract Service
  • Preprint Server
  • Extragalactic/Cosmology Reviews
  • NASA/IPAC Extragalactic Database (NED)
  • InfraRed Science Archive (IRSA)
  • Spitzer Heritage Archive
  • Astrophysics Data Handbook
  • Galaxy and Quasar Spectral Lines
  • Astronomy Meetings and Conferences
  • Astronomical Almanac
  • Astrophysical Calculator
  • Cosmology Calculator (includes dark energy!)
  • Notes/papers on astro concepts and analysis methods
  • Notes/papers on statistical methods and theory
  • AstroBetter
  • AstroBites

    Manuals

  • FITS & WCS Tools
  • Astro Tool Tips
  • SAOImage DS9
  • Grace User Guide
  • C Programs and Examples (PDF)
  • The GNU C Library
  • GNU Scientific Library
  • The "R" programming language
  • "R" programming tips
  • R - Reference Card
  • Mathematica Commands (PDF)

    Statistics

  • Handbook of Statistical Methods
  • Data Analysis Briefbook
  • StatSoft
  • Statistics to use
  • Online Textbook
  • Data Mining / Machine Learning Textbook
  • Statistical Software

    Physics/Mathematics

  • Physics FAQ's
  • Physics Textbook
  • Wolfram's MathWorld
  • MathPages
  • Mathematics Problems
  • Online Textbooks
  • Feynman Lectures on Physics
  • Mathematical Software
  • Lectures from the Khan Academy