HOKU

An Online Astronomy Newsletter for Educators and Parents
Volume 4, Number 2 (August 2004)
By Liz Bryson and Lisa Wells
(ISSN: 1538-5140)



Message from CFHT Librarian, Liz Bryson


  • Contents:
    • Make A Wish Visit
    • Mauna Kea Observatories Outreach Committee
    • California Institute of Technology: Cool Cosmos
    • Birth Cry of the Cosmos Heard
    • Free Videos from NASA
    • Cosmic Distance Scale
    • Big Bang Was Big Hum
    • Upcoming Astronomical Events


    California Institute of Technology: Cool Cosmos

    This great educational site from Cal Tech offers all sorts of resources to assist in learning about the universe. Using the fun, gear-like menu on the left of the screen, visitors can pick from site areas such as the Cosmic Classroom (which offers classroom activities, lessons, reference info and an Ask an Astronomer option), Cosmic Kids (where kids can learn about what's in space through stories and resources like the Infrared Zoo), the Video and Image Galleries, and lots more. The site should be a great resource for teachers introducing students to the study of the universe or those visitors who are simply interested in getting lost in space for a while.

    Cool Cosmos.


    Birth Cry of the Cosmos Heard

    Reports on sounds of the early universe, which have been recaptured by an astronomy professor. Features sound files resulting from analysis of the "so-called background radiation that was born 400,000 years after the Big Bang." Includes related links. From the British Broadcasting Corporation (BBC).

    Birth Cry of the Cosmos Heard


    Free Videos from NASA

    "NASA has a great source of free education videos (not just science). If you send them a blank video tape, they will record it for you and send it back for....... free of charge!" Topics are broad, everything from history of aviation to polynomials. There are also a few interactive CDs available for sale. This website is a pdf catalog of what is available.

    Free Videos from NASA


    Cosmic Distance Scale

    This NASA site was developed by Maggie Masetti to demonstrate astronomical distances and help users grasp the size of our universe. Starting at Earth, users simply select the Zoom Out link to see continuously larger areas of our universe until they reach The Farthest Visible Reaches of Space. At each stop, visitors can click on the Tell Me About link to receive information about the particular object such as its importance, its distance, and the time it would take to travel to the object. Teachers and students will find this site both incredibly easy to navigate and very educational.

    Cosmic Distance Scale


    Big Bang Was Big Hum

    Physicist John Cramer has produced an audio track of the Big Bang. Prompted by an 11-year-old who wanted to know what the Big Bang sounded like, Cramer went to work to find out. The 100-second-long .WAV file uses sound frequencies modified to let human hearing detect them. The end result sounds something like a turbo-charged helicopter passing by. New Scientist has a brief article and a link to the sound file.

    Big Bang Was Big Hum


    Upcoming Astronomical Events

    1. Meteor Showers - Don't forget to watch the Perseid meteor shower on the morning of August 12nd. Best viewing time is Midnight to Sunrise with the peak occuring at 1am on the 12nd. Predictions are 90 meteors per hour. It is best to bring along a sky chart to identify the constellations in this case Perseid in the N and then look in their direction. See the August 2001 issue of Hoku in the archive to learn more about watching meteor showers.
    2. Eclipses - There will be a partial solar eclipse during the day of October 13th. It will start at 5:14 pm and end at 6:06pm. This is unfortunately not quite as spectacular as a total solar eclipse. About 50% of the sun will be covered and it will set before the end of the event. A total lunar eclipse will occur on October 27th at the moonrise that evening. The moon will rise with a dark red color and shortly after, the moon will pass into the penumbra and begin brightening. If you are traveling in the eastern part of the mainland, the entire eclipse will be visible.
    3. Planets - Venus and Saturn will be very close on the morning of August 31st. They will be within several degrees of each other. Mercury will be at its greatest elongation in the evening sky September 19th.
    4. Zodiacal Light - Look for the zodiacal light for several weeks beginning September 13th in the morning just before twilight begins.
    5. Equinox - The Autumnal equinox occurs on the morning of September 22 at 6:30am.

    All times listed above are HST. The link below contains many calendars and includes a nice section on astronomical events. Check it out!!

    Calendars



    We gratefully acknowledge the following online sources: Yahoo's Search Engine, The Scout Report, Blue Web'N, and the Librarian's Index to the Internet.

    This page is compiled by Liz Bryson, CFHT Librarian
    This page was designed by Lisa Wells, CFHT Observing Assistant
    We appreciate your comments and questions.