Astronomy Principles and Practice Fourth Edition.pdf

Web sites
The first collection of web sites correspond to those which are referenced within the main text, the
second block have not been referenced directly but provide other useful background information. There
are many hundreds of addresses related to astronomy that are of interest but which have not been listed
here. It is left to the student to explore these perhaps from links in the list below or by using the regular
search engines.
• W 1.1—www.spaceweather.com
Provides information and warnings of forthcoming aurora events according to observations of
recent solar phenomena.
An alternative site—www.sel.noaa.gov/SWN/index.html—with the title Space Weather Now—
gives similar information with the current solar image indicating its level of activity.
• W 1.2—www.heavens-above.com
Provides predictions of the visibility of the International Space Station according to the location
of the observer.
• W 6.1—astro4.ast.vill.edu/
‘Click on’ Skyglobe—the software is a ‘planetarium’ simulation of the sky and can be
downloaded—it is distributed as shareware.
• W 6.2—www.seds.org/billa/astrosoftware.html
This site provides a comprehensive list of planetarium software—demonstrations for some can be
downloaded—with a view to purchase of the complete package.
• W 16.1—www.seds.org/billa/bigeyes.html
The World’s largest optical telescopes.
• W 16.2—www.ast.cam.ac.uk/astroweb/yp telescope.html
The site provides links to ‘telescope’ facilities around the world for the full range of spectral
domains.
• W 18.1—www.aao.gov.au/
This is the Anglo-Australian site—‘click on’ ‘Images’, then ‘Images by Telescope—Anglo-
Australian’; AAT 19 is a good example of an image processed by the unsharp masking technique.
• W 20.1—www2.keck.hawaii.edu
Details are provided about the operation of the twin 10 m KECK optical telescopes.
• W 20.2—www.jach.hawaii.edu/JACpublic/JCMT/
The site provides information about the James Clerk Maxwell Telescope designed for
observational millimetre astronomy.
• W 20.3—linmax.sao.arizona.edu/help/FLWO/whipple.html
The site of the Fred Lawrence Whipple Observatory on Mt Hopkins, near Amado, Arizona. As
well as running the 6·5 m MMT, the observatory also operates a 10 m gamma-ray telescope.
• W 20.4—www.gemini.edu/
The site of The Gemini Observatory involving the use of twin 8·1 m telescopes covering both the
northern and southern skies. The telescopes operate with adaptive optics.
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