spectroscopic binary

spectroscopic binary
noun
: a binary star in which shifting of lines in the system's spectrum indicates orbital revolution

* * *

Astron.
a binary star having components that are not sufficiently separated to be resolved by a telescope, known to be a binary only bythe variations in wavelength of emitted light that are detected by a spectroscope. Cf. visual binary.

* * *

spectroscopic binary noun (astronomy)
A binary star whose components are too close to be resolved visually, but can be resolved spectroscopically
• • •
Main Entry:spectrum

* * *

spectroscopic binary,
Astronomy. a binary star whose two components are so close that they cannot be separated with a telescope and are known to exist only through spectrum analysis.

Useful english dictionary. 2012.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • spectroscopic binary — Astron. a binary star having components that are not sufficiently separated to be resolved by a telescope, known to be a binary only bythe variations in wavelength of emitted light that are detected by a spectroscope. Cf. visual binary. * * * …   Universalium

  • spectroscopic binary star — noun a binary star system which can be detected by observing the Doppler shift of the star s spectral lines which periodically split into a doublet and then recombine …  

  • Binary star — For the hip hop group, see Binary Star (band). Hubble image of the …   Wikipedia

  • binary star — /ˈbaɪnəri sta/ (say buynuhree stah) noun a system of two stars which revolve round their common centre of gravity. See astronomic binary star, eclipsing binary star, spectroscopic binary star …  

  • binary star — Astron. a system of two stars that revolve about their common center of mass. Also called binary, binary system. [1875 80] * * * Pair of stars in orbit around a common centre of gravity. Their relative sizes and brightnesses and the distance… …   Universalium

  • visual binary — Astron. a binary star having components that are sufficiently separated to be resolved by a telescope. Cf. spectroscopic binary. * * * …   Universalium

  • spectroscopicbinary — spectroscopic binary n. A binary star system that is identified by periodically shifting lines in its spectrum. * * * …   Universalium

  • 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

  • List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …   Wikipedia

  • Capella (star) — For other uses, see Capella (disambiguation). Capella Aa/Ab Capella is the brightest star in Auriga Observation data Epoch J2000.0     …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”