Astronomy

Science Forums (Popularity: )

Many topics covered; for beginners to serious researchers.
Category: Science\Chats and Forums

The Beer Chair (Popularity: )

Observing chair, Astronomy dictionary and unique astronomy items.
Category: Science\Astronomy\Amateur

Lunisolar Calendar (Popularity: )

Lunar calendar with lunations, from new moon to new moon, instead of months. Moon phase ...
Category: Science\Astronomy\Calendars and Timekeeping

Constellation Names (Popularity: )

The names of 88 constellations in different languages.
Category: Science\Astronomy\Amateur\Constellations

Astronomical Optical Interferometry (Popularity: )

The use of multiple telescopes to produce high resolution images - commonly used at most ...
Category: Science\Astronomy

Orbitron - Satellite Tracking System (Popularity: )

For radio amateur and observing purposes, and used by weather professionals, satellite communication users, astronomers, ...
Category: Science\Astronomy\Amateur\Satellites

Internet Telescope Exchange Classifieds (Popularity: )

Listings of telescopes and accessories for sale or trade.
Category: Science\Astronomy\Amateur\Classifieds

Astronomy Formulas (Popularity: )

Lunar and solar periodicity formulas, definitions, time formulas, notation, astronomical constants with computer code for ...
Category: Science\Astronomy\Software

Astronomical Pseudo-Science: A Skeptic's Resource List (Popularity: )

List of links for those, who want to examine theories that are on the fringe ...
Category: Science\Astronomy

The Net Advance of Physics (Popularity: )

MIT resource providing discussions at various levels of sophistication that cover all areas of physics.
Category: Science\Physics

Satellite Tool Kit (Popularity: )

Analytical engine to calculate data and display multiple 2-D maps to visualize various time-dependent information ...
Category: Science\Technology\Software for Engineering\Aerospace Engineering

ATM - Amateur Telescope Making (Popularity: )

Information on telescope building, equatorial platform, scotch mount, and binocular mount, and information how to ...
Category: Science\Astronomy\Amateur\Amateur Telescope Making

Astro Portal - CalSKY (Popularity: )

The worldwide interactive online astronomical/space calendar and calculator - for friends of astronomy, as well ...
Category: Science\Astronomy\Calendars and Timekeeping

Mathematical Principles of Natural Philosophy (Popularity: )

Principia by Isaac Newton (1687) translated by Andrew Motte (1729) in HTML (incomplete).
Category: Science\Math\Publications\Online Texts

MODAS - Modern Optical Design and Analysis Software (Popularity: )

Paraxial and Seidel calculations, spot diagrams, ray fans, 3D wave aberrations and energy distribution, optical ...
Category: Science\Physics\Optics\Software

The Why Files (Popularity: )

Well-researched, educational descriptions of the actual science behind current news stories. From the University of ...
Category: Science\News and Media

Murnaghan Instruments Corp. (Popularity: )

Telescopes by Coulter Optical and other manufacturers, Odyssey binoculars, and accessories. Also sells components and ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Astro-Physics Inc. (Popularity: )

Telescopes, mounts and accessories for observers and astrophotographers.
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Parks Optical (Popularity: )

Newtonian and Newtonian-Cassegrain reflecting telescopes, optical tube assemblies, telescope making components, binoculars, spotting scopes and ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Auroras: Paintings in the Sky (Popularity: )

What are auroras? What makes them happen? What do they look like? Where can you ...
Category: Science\Earth Sciences\Atmospheric Physics