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International Earth Rotation Service (IERS)
Description: Works to maintain the International Celestial Reference System and Frame, and the International Terrestrial Reference System and Frame, and to provide timely and accurate data on the Earth's orientation for current use and ...
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3.0 / 5.0, examinés par Sites Like Search
Langue: English
Thèmes du site: astronomy
The Astronomical Society of South Australia was founded in 1892 and is the oldest society of its kind in Australia.
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Key activities include research and observing planets, stars, celestial phenomena and the abatement of light pollution.
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Home page of Raymond Mercier
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International Occultation Timing Association Administrative Website
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Stargazing Network provide free Web page hosting for the Amateur Astronomy Community. Stargazing Network is sponsored by Cetus Technology at www.cetus.net.
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3.0 / 5.0, Langue: English
an international society of amateur and professional astronomers specialising in the observation of double stars and deep sky objects
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3.0 / 5.0, Langue: English
Member information, meeting announcements, publications and reports, awards, and links to related sites.
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3.0 / 5.0, Langue: English
Shows photos of fossils of different types. Browse by location, time period or type.
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3.0 / 5.0, Langue: English