Astronomy
  Today's Moon is shown on the left. Click on it and you can obtain the times of sunrise, sunset, moonrise, moonset, and the beginning and end of civil twilight, along with information on the Moon's phase for any location and date. Have you recently looked up at the night sky and wondered what that bright object is? Is it a star or planet? Do you want to know what the surface of Mars looks like? The links below will provide you with spectacular images of astronomical objects, maps of the night sky, predictions of satellite passes, information on meteor showers and comets, the "weather" in space, the exact time anywhere in the world, a list of the world's largest telescopes, authoritative information on many astronomical topics, and permit you to make your own astronomical observations with an on-line telescope. You can get the answer to an astronomical question by consulting a NASA scientist on-line.
- Astronomy Picture of the Day
- This Week's Sky
- Tonight's Sky Map
Enter your zip code and get a map of the sky from your viewpoint. Click on a planet, star, Moon, or Sun for more information.
- Sky & Telescope
This week's sky at a glance.
- Sun and Moon
You can obtain the times of sunrise, sunset, moonrise, moonset, transits of the Sun and Moon, and the beginning and end of civil twilight, along with information on the Moon's phase by specifying the date and location.
- Current Sky Information
From the Harvard-Smithsonian Center for Astrophysics.
- Skyhound
Timely information for the observer.
- Maine Clear Sky Clocks
A prediction of when Maine will have good weather for astronomical observing. Forecast data comes from the Canadian Meteorological Center.
- New Hampshire Clear Sky Clocks
A prediction of when New Hampshire will have good weather for astronomical observing. Forecast data comes from the Canadian Meteorological Center.
Click on the map for an explanation.
- Boston Clear Sky Clock
A prediction of when Boston, Massachusetts, will have good weather for astronomical observing. Forecast data comes from the Canadian Meteorological Center.
- Telescopes
- The World's Largest Telescopes
The largest telescopes under operation, under construction, and under study. Provides links to each telescope's Web site.
- SLOOH (Live Online Observatory)
Two observatory domes, located on Mount Teide in the Canary Islands, have already delivered over a quarter million images to our members since 2003. Each observatory contains two telescopes, one wide field and one high magnification, so you have options when viewing every beautiful celestial object.
- MicroObservatory (Online telescopes)
MicroObservatory is a network of five automated telescopes that can be controlled over the Internet.
The telescopes were developed at the Harvard-Smithsonian Center for Astrophysics and were designed to enable students and teachers nationwide to investigate the wonders of the deep sky from their classrooms.
- Amateur Telescope Makers of Boston
The Amateur Telescope Makers of Boston, Inc.(ATMoB) is an amateur astronomy club devoted to the study of the stars, observing, and telescope making. It was originally established in 1934 and is now one of the oldest and largest general interest astronomy clubs in the nation.
- Time and Calendars
- Official Time (Disable Java, if necessary)
The current official time from the U.S. Naval Observatory.
- Local Times Around the World
Lists most of the world's countries, and many of its islands, with a pointer to the local time in the region.
- Calendars
All you ever wanted to know about calendars.
- Julian Day and Civil Date Calculator
Converts Gregorian calendar date to Julian Day Number and day of week. Careful: Julian days commence at Greenwich noon not at midnight.
- Planets, Comets & Meteors
- The Nine Planets (A Multimedia Tour of the Solar System)
The Nine Planets is an overview of the history, mythology, and current scientific knowledge of each of the planets and moons in our solar system. Each page has text and images, some have sounds and movies, most provide references to additional related information.
- International Meteor Organization
News & information, professional & amateur observations and historical research.
- ICQ (International Comet Quarterly) Comet Information
Useful and accurate information regarding news, observations, orbital data, designations and names, and good links regarding comets and related topics.
- Solar System Live (The interactive Orrery of the Web)
You can view the entire Solar System, or just the inner planets (through the orbit of Mars). Controls allow you to set time and date, viewpoint, observing location, orbital elements to track an asteroid or comet, and a variety of other parameters.
- Astronomical Images
- Hubble Gallery
View images from the Hubble Space Telescope.
- Chandra X-ray Observatory Center
X-ray images, press releases, guide to X-ray astronomy, and more.
- Wide-field Images
A unique collection of wide-field astronomical photographs, mostly made with the telescopes of the Anglo-Australian Observatory by
David Malin.
- Artificial Satellites and Space Science
- Heavens Above
If you're interested in satellites, this is the right place! All the information you need to observe satellites such as the International Space Station and the Space Shuttle. Provides other spaceflight and astronomical information.
- J-Track Satellite Tracking
Graphical display of orbiting artificial satellites. Page provided by NASA's Marshall Space Flight Center.
- Space Weather
Science news and information about the Sun-Earth environment.
- Science at NASA
Space science, astronomy, living in space, earth science, biological & physical sciences, and beyond rocketry.
- Space Daily
Up-to-date news about the space program.
- More Space Science Links
- General Astronomical Information
Return to Web Links Page
Return to Home Page
|
