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ID number:721832
 
Evaluation:
Published: 10.11.2010.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Galaktiku tipi
Eliptiskās galaktikas
Lēcveida galaktikas
Spirālveida galaktikas
Neregulārās galaktikas

Eliptiskās galaktikas
Elipsoidāla zvaigžņu sistēma, kurā ir tikai vecas zvaigznes, nav gāzu un putekļu mākoņu, nav spirālzaru.
Eliptiskās galaktikas visā visumā ir aptuveni 25 % no kopējo galaktiku skaita.
Galaktiku struktūra sastāv no vecām zvaigznēm - sarkanajiem milžiem, dzeltenajiem un sarkanajiem punduriem.

Lēcveida galaktikas
Vārpstveida formas galaktika; pārejas forma starp eliptiskajām un spirālveida galaktikām
Lēcveida galaktikas sastāda apmēram 20% no visu galaktiku skaita
Saplacināts zvaigžņu disks
Nav spirālzaru

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