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International Earth Rotation Service (IERS)
descrizione: 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 ...
Ricerche popolari: hpiers obspm
Valutazione del sito:
3.0 / 5.0, recensione di Sites Like Search
Lingua: English
Argomenti sito: astronomy
The Astronomical Society of South Australia was founded in 1892 and is the oldest society of its kind in Australia.
Valutazione del sito:
3.0 / 5.0, Lingua: English
Key activities include research and observing planets, stars, celestial phenomena and the abatement of light pollution.
Valutazione del sito:
3.0 / 5.0, Lingua: English
Home page of Raymond Mercier
Valutazione del sito:
3.0 / 5.0, Lingua: English
International Occultation Timing Association Administrative Website
Valutazione del sito:
3.0 / 5.0, Lingua: English
Stargazing Network provide free Web page hosting for the Amateur Astronomy Community. Stargazing Network is sponsored by Cetus Technology at www.cetus.net.
Valutazione del sito:
3.0 / 5.0, Lingua: English
an international society of amateur and professional astronomers specialising in the observation of double stars and deep sky objects
Valutazione del sito:
3.0 / 5.0, Lingua: English
Member information, meeting announcements, publications and reports, awards, and links to related sites.
Valutazione del sito:
3.0 / 5.0, Lingua: English
Shows photos of fossils of different types. Browse by location, time period or type.
Valutazione del sito:
3.0 / 5.0, Lingua: English