- brightness variability
- астр. переменность блеска
English-russian dictionary of physics. 2013.
English-russian dictionary of physics. 2013.
variability — variable ► ADJECTIVE 1) not consistent or having a fixed pattern; liable to vary. 2) able to be changed or adapted. 3) Mathematics (of a quantity) able to assume different numerical values. ► NOUN 1) a variable element, feature, or quantity. 2)… … English terms dictionary
T Tauri star — Drawing of a T Tauri star with a circumstellar accretion disc … Wikipedia
Instability strip — The Instability strip is a nearly vertical region in the Hertzsprung–Russell diagram which is occupied by pulsating variable stars (including RR Lyrae variable, Cepheid variable, W Virginis variable, ZZ Ceti variable, RV Tauri variable, Delta… … Wikipedia
Herbig Ae/Be stars — are pre main sequence stars young ( … Wikipedia
variable — variability, variableness, n. variably, adv. /vair ee euh beuhl/, adj. 1. apt or liable to vary or change; changeable: variable weather; variable moods. 2. capable of being varied or changed; alterable: a variable time limit for completion of a… … Universalium
Variable star — A star is classified as variable if its apparent brightness as seen from Earth changes over time, whether the changes are due to variations in the star s actual luminosity, or to variations in the amount of the star s light that is blocked from… … Wikipedia
star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… … Universalium
Solar variation — Solar variations are changes in the amount of solar radiation emitted by the Sun. There are periodic components to these variations, the principal one being the 11 year solar cycle (or sunspot cycle), as well as aperiodic fluctuations. Solar… … Wikipedia
Vega — Starbox begin name=Vega Starbox image caption = Location of Vega in the constellation Lyra. Starbox observe epoch=J2000.0 constell=Lyra ra=RA|18|36|56.3364cite web author=Staff date=October 30, 2007 url=http://simbad.u strasbg.fr/simbad/sim… … Wikipedia
Mira — For other uses, see Mira (disambiguation). Mira Mira as seen by Hubble. NASA image … Wikipedia
Astrophysical maser — An astrophysical maser is a naturally occurring source of stimulated spectral line emission, typically in the microwave portion of the electromagnetic spectrum. This emission may arise in molecular clouds, comets, planetary atmospheres, stellar… … Wikipedia