THE SKY AT A GLANCE

Current Phase of the Moon

THE NIGHT SKY

• Sky & Telescope: This Week's Sky at a Glance
• Night Sky Info
• Eagle's Eye on the Sky
• Heavens Above
• AstroImage

SUN AND MOON

• Sunrise/Sunset/Twilight and Moonrise/Moonset
• Earth's seasons, Equinoxes, Solstices, Perihelion and Aphelion 2000-2020
• International Earth Rotation & Reference Systems Service
• Earth's Orientation and Earth's Rotation
• Phases of the Moon (1700-2035)
• Moonphases for the years 1700 up to 2199
• Virtual Reality Moon Phase Pictures: 1800-2199
• Find moonrise, moonset and moonphase for a location
The Sun/Moon Calculator
• Moon Tool for Windows

CALENDAR

• Calender Zone

SOLAR AND LUNAR ECLIPSES

• NASA Eclipse Web Site
• Eclipses of the Sun and Moon

TRANSITS

• Planetary Transits Across The Sun
• 2004 and 2012 Transits of Venus

OCCULTATIONS

• International Occultation Timing Association Home Page
• Occultations by Solar System Objects
• Asteroid Occultation Section of IOTA
• Asteroid Occultation Updates
• European Asteroidal Occultation Results
• Occultations by Asteroids

METEOR SHOWERS

• International Meteor Organization
• American Meteor Society

COMETS

• Skyhound's Comets this Month
• BAA Comet Section Home Page

EPHEMERIDES AND CALCULATIONS

• MICA Multiyear Interactive Computer Almanac
• Ancient Luni-Solar and Planetary Ephemerides
• Astronomical Calculations
• Ephemerides server of the Bureau des Longitudes
• JPL's Solar System Dynamics WWW site
• Satellite Situation Center
• The Distant Artificial Satellites Observation Page
• Computing planetary positions - a tutorial with worked examples

TIMEKEEPING

• The Official U.S. Time
• What Time Is It?
• Local Times Around the World
• World Time Zones

VARIABLE STARS

• VSNET: Variable Star Network Home Page
• Algol's minima
• International Supernovae Network

DOUBLE STARS

Double Star Club Observing List
• Double Stars To Follow

SATELLITES

• Visual Satellite Observer's Home Page
• The High Altitude Satellite Observers Home Page
• Heavens Above
• SpaceOnLine
• CelesTrak WWW (Twee-lijns baanelementen satellieten)

CONSTELLATIONS, STARCHARTS, CATALOGUES, MESSIER OBJECTS

• MWO Online StarMap
• The Constellations and their Stars
• Windows on the Universe: Constellations
• The Constellations
• The Mythology of the Constellations
• The Web Nebulae by Bill Arnett
• The Messier Catalog
• A Messier Gallery
• ESO Online Digitized Sky Survey
• Star Journey

MISCELLANEOUS

• Estimating Limiting Magnitude
• Determining Brightness using the Magnitude System

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