pulsation period

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• Cepheid variable — This article is about a class of pulsating stars. For the similarly named constellation, see Cepheus (constellation). Cepheids redirects here. For the fictional species, see Blind Alley . A Cepheid (  /ˈs …   Wikipedia

• Classical Cepheid variable — Classical Cepheids (also known as Population I Cepheids, Type I Cepheids, or Delta Cephei variables) are a type of Cepheid variable star. They are population I, variable stars that exhibit pulsation periods in the order of a few days to months,… …   Wikipedia

• Mira variable — Mira variables (  /ˈmaɪr …   Wikipedia

• 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

• RR Lyrae variable — RR Lyrae variables are periodic variable stars, commonly found in globular clusters, and often used as standard candles to measure galactic distances. This type of variable is named after the prototype, the variable star RR Lyrae in the… …   Wikipedia

• PSR B1257+12 — Starbox begin name = PSR B1257+12 Starbox observe epoch = J2000.0 constell = Virgo ra = 13h00m01s dec = +12° 40 57 appmag v = ?Starbox character class = ? b v = ? u b = ? variable = Pulsar Starbox detail mass = assumed 1.4 radius = 0.00002… …   Wikipedia

• Pulsar planet — Pulsar planets are planets that are found orbiting pulsars, or rapidly rotating neutron stars. The first such planet to be discovered was around a millisecond pulsar and was the first extrasolar planet to be discovered. Pulsar planetsPulsar… …   Wikipedia

• PSR B1620-26 b — Extrasolar planet List of extrasolar planets An artist s impression of PSR B1620 26 b staring at its parent stars. Parent …   Wikipedia

• Krzeminski's Star — is a 20.5 solar mass slightly evolved blue supergiant with a radius of 11.8 solar radii and spectral type O6.5II. It is estimate to be 8 kpc distant. Most notably, it is the visible component of the occulting spectroscopic binary system that… …   Wikipedia

• PSR B1620-26 — Starbox begin name = PSR B1620−26 Starbox image caption = The location of PSR B1620−26 (circled) Starbox observe epoch = J2000.0 constell = Scorpius (M4) ra = RA|16|23|38 dec = DEC|−26|31|53 appmag v = +24 Starbox character class = Pulsar / DB b… …   Wikipedia

• Toda oscillator — In physics, the Toda oscillator is special kind of nonlinear oscillator; it is vulgarization of the Toda field theory, which is a continuous limit of Toda s chain, of chain of particles, with exponential potential of interaction between neighbors …   Wikipedia