ELECTRONIC EPHEMERIS

Electronic Ephemerides

See our Popular Astronomy page for links to celestial images, popular journals, organizations, etc.

* = Denotes sites which assume advanced astronomy background

Hawaii-Oriented Ephemerides -- Local Sky Charts, Sun and Moon Rise/Set Times, Satellite Visibility Times, and Other Astronomy Data Relevant to Hawaii

Bishop Museum Planetarium - "Hawaii's Sky Tonight Maps" and "Sunrise & Sunset Tables For All Islands" (scroll down)
Current Local Time in Honolulu - Conversion from UTC/GMT to HST
Hawaii Astronomical Information - Sun and moon rise/set times; moon phases
Hawaii Astronomical Society - Interactive all sky maps
Heavens Above - Main page; set own geographical locations

Local Sidereal Time Clock
NASA Human Spaceflight - Satellite sighting information for Hawaii

General Ephemerides

* Astronomical Ephemeris (Elementi Astronomici) - Provided by Osservatorio Astronomico di Palermo (in Italian)
* Astronomical Sky Calendar - Julian date, sun and moon rise/set times, percent illumination, etc.
Astronomer's Telegram (ATEL) For reporting and commenting on new astronomical observations
Earth and Moon Viewer
Eclipse Home Page (NASA) - Past, present and future: sun and moon eclipses, transits and solar system data - by Fred Espenak
* Ephemerides and Orbital Elements (MPC & CBAT) - Comets, NEO and minor planets
EFEMERIDES -/- EPHEMERIS - Links to numerous ephemeris resources
The Old Farmer's Almanac - Astronomy Center

Full Moon Dates - 2003 through 2012

Glossary of Astronomical Terms - SkyEye
Heavens Above
* IAU: Central Bureau for Astronomical Telegrams (CBAT)

Archive of IAU Circulars at IfA
The 200 most recent IAUCs Gives number and content list only. For full text of Circulars, see Archive of IAU Circulars at IfA
IAU Commission 5 Task Group on Astronomical Designations - Radiation sources outside the solar system

Inconstant Moon - Variety of lunar information: diary, phase calculator, atlas, orrery, etc.
NASA Human Spaceflight - Global satellite sighting information; search by city

Sightings Opportunities & Help - Viewing satellites and spacecraft from the ground, intrepretating the data, and viewing tips

North American Skies - Times and locations of stars, planets, eclipses, meteor showers and other events visible in the sky
Space Calendar - Space-related activities and anniversaries for the coming year, and 1,600 links to related home pages
* US Naval Observatory (USNO) Astronomical Applications Department - Publications, software, algorithms, and expertise

* USNO Data Services - Sun and moon rise/set times, moon phases, eclipses & transits, seasons, positions of selected celestial objects, and other data
* USNO Time Service Department - Official time source for the Dept. of Defense (DoD), the Global Positioning System (GPS), and the standard of time for the U.S.

Sky Maps & Solar System Simulators -- Interactive Sky Charts for Observations in Various Global Locations

North American Skies Monthly Sky Chart
Sky & Telescope Magazine's Interactive Sky Chart - Create a custom, naked-eye sky map as seen from any place on Earth, at any time, day or night, on any date from 1600 to 2400 [requires Java-enabled Web browser; works best with IE or Safari]
Skymaps.com - Free downloads of monthly sky maps for both northern and southern hemispheres.
Solar System Simulator - View different points in the solar system at different times
Stargaze v2.61 - Draw naked-eye maps of the sky for any location on earth [for Windows (98, ME, NT4, 2000 or XP)]
Stellarium: Planetarium for your Computer - Realistic sky in 3D; downloads to Linux, Mac OS X and Windows
Your Sky - Interactive planetarium: produce maps for any time and date, viewpoint and observing location

IfA Site Map ~ IfA Library HomePage ~ QUIK INFO table

Corrections, changes and suggestions to: library at ifa dot hawaii dot edu
Last checked/updated: 15 July 2008