An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 6 Search : sand
Hubble-Sandage classification
  رده‌بندی ِ هابل-سندیج   
radebandi-ye Hubble-Sandage

Fr.: classification de Hubble-Sandage   

Same as the → Hubble classification.

Hubble; → Hubble-Sandage variable; → sequence.

Hubble-Sandage variable
  ورتنده‌ی ِ هابل-سندیج   
vartande-ye Hubble-Sandage

Fr.: variable de Hubble-Sandage   

A type of highly luminous → blue supergiant star with variable light, first discovered in the M31 and M33 galaxies; also called → S Doradus stars. They are now believed to be part of the class of → Luminous Blue Variable stars.

Hubble; Allan Rex Sandage (1926-2010), American cosmologist.

sand
  ماسه   
mâsé (#)

Fr.: sable   

Hard granular powder, consisting of fine grains of rock or minerals, usually quartz fragments, found on beaches, in deserts, and in soil.

O.E. sand; cf. O.N. sandr, O.Fris. sond, M.Du. sant, Ger. Sand; PIE base *samatha- (cf. Gk. psammos "sand," L. sabulum).

Mâsé "sand," of unknown origin.

sandstone
  ماسه‌سنگ   
mâse-sang (#)

Fr.: grès   

Variously colored → sedimentary rock composed mainly of sand-like quartz grains cemented by calcite, clay, or iron oxide. The sand accumulated originally underwater in shallow seas or lakes, or on the ground along shorelines or in desert regions.

sand; → stone.

sandstorm
  ماسه‌باد   
mâse-bâd (#)

Fr.: tempête de sable   

A strong wind carrying sand through the air.

sand; → storm.

Sanduleak catalog
  کاتالوگ ِ سندیولیک   
kâtâlog-e Sanduleak

Fr.: catalogue de Sanduleak   

A deep → objective prism survey of the → Large Magellanic Cloud carried out with the Curtis Schmidt telescope on Cerro Tololo in Chile. A total of 1272 stars, generally brighter than → photographic magnitude ~ 14, are listed in the catalog as proven or probable LMC members. The stars are identified on the charts in the LMC Atlas of Hodge & Wright (1967).

By Nicholas Sanduleak (1933-1990), American astronomer, published in 1970 as Contribution No. 89 of the Cerro Tololo Inter-American Observatory; → catalog.