Cepheid variable

Cepheids redirects here. For the fictional species, see "Blind Alley".

A Cepheid variable (/ˈsɛfiːɪd/ or /ˈsiːfiːɪd/) is a type of star that pulsates radially, varying in both temperature and diameter to produce brightness changes with a well-defined stable period and amplitude.

A strong direct relationship between a Cepheid variable's luminosity and pulsation period secures for Cepheids their status as important distance indicators for establishing the galactic and extragalactic distance scales.

单词	Cephid
释义	Cephid 英语百科 Cepheid variable Cepheids redirects here. For the fictional species, see "Blind Alley". A Cepheid variable (/ˈsɛfiːɪd/ or /ˈsiːfiːɪd/) is a type of star that pulsates radially, varying in both temperature and diameter to produce brightness changes with a well-defined stable period and amplitude. A strong direct relationship between a Cepheid variable's luminosity and pulsation period secures for Cepheids their status as important distance indicators for establishing the galactic and extragalactic distance scales.
随便看	non automatic control system non automatic extraction turbine nonautomatic mooring winch non automatic mooring winch nonautomatic nozzle nonautomatic rectifier non automatic signal nonautomatic signal nonautomatic switching non automatic switching non automatic system non automatic tripping nonautomation nonautomotive nonautonomous nonautonomous development non autonomous development nonautonomous element nonautonomously nonautonomous model nonautonomous system nonautonomy nonautoreactive nonautoregression nonautotrophic

Cephid

Cepheid variable