Stellar rotation is the angular motion of a star about its axis. The rate of rotation can be measured from the spectrum of the star, or by timing the...

Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space...

Measurements of the time variation in stellar activity can be useful for determining the differential rotation rates of a star. A star with a magnetic...

Rotation or rotational motion is the circular movement of an object around a central line, known as axis of rotation. A plane figure can rotate in either...

rotation affects stellar optical absorption-line spectra through line broadening caused by lines being differently Doppler-shifted across the stellar...

department; he retired in 1994. His principal research interests were in stellar rotation and Be stars, and he published over 90 papers, abstracts and articles...

In astrophysics, stellar nucleosynthesis is the creation of chemical elements by nuclear fusion reactions within stars. Stellar nucleosynthesis has occurred...

fast rotators (minor planets) Retrograde motion Rotation (astronomy) Rotational speed Stellar rotation Synodic day "Period". COSMOS - The SAO Encyclopedia...

composition and energetics Stellar population – Grouping of stars by similar metallicity (metallicity) Stellar rotation § After formation – Angular motion...

Catalogue of rotational velocities of the stars is the name for catalogue of projected stellar rotation, published in 1982 by Uesugi, A. and Fukuda, I...

impetus for its stellar motion. Examples of using kinematics combined with modeling to construct an astrophysical system include: Rotation of the Milky Way's...

the stellar day, Earth's actual period of rotation relative to the fixed stars. The slightly longer stellar period is measured as the Earth rotation angle...

magnetic field can act upon a star's stellar wind, functioning as a brake to gradually slow the rate of rotation with time. Thus, older stars such as...

luminosity. stellar designation stellar dynamics stellar envelope 1.  The region within the volume of a star that transports energy from the stellar core to...

93..133K. doi:10.1086/144252. Tassoul, Jean Louis; et al. (2000). Stellar Rotation. Cambridge, UK, New York: Cambridge University Press. p. 231. ISBN 0-521-77218-4...

BVRI synthetic photometry. Influence of interstellar extinction and stellar rotation". Astronomy and Astrophysics. 388: 309–319. arXiv:astro-ph/0203341...

fraction (1/3) of their estimated stellar rotation period, and thus the planetary signal is most likely an artifact of stellar activity. The authors did not...

black holes, neutron stars are the smallest and densest known class of stellar objects. They have a radius on the order of 10 kilometers (6 mi) and a...

negative), c (whose weakly defined apparent signal was correlated to stellar rotation), and d (which did not show up in all data sets). Instead, they found...

dust in the interstellar medium, supernovae, gamma-ray bursts, stellar rotation, stellar magnetic fields, debris disks, reflection in binary stars and...

difficult; it is known to be a function of stellar composition and can be affected by other factors like stellar rotation. When converting luminosity or absolute...

infrared variations in flare stars indicative of active regions and stellar rotation. He also collaborated with the Armagh astronomers, C.J.Butler, P.B...

understood, being variously ascribed to pulsations, binarity, and stellar rotation. Beta Cephei (β Cep) variables (sometimes called Beta Canis Majoris...

12300+200 −100 AU. Asteroseismic studies, chromospheric activity, and stellar rotation (gyrochronology) are all consistent with the Alpha Centauri system...

red dwarf is expected to steadily wane over billions of years as its stellar rotation rate decreases. The activity level appears to vary with a period of...

Struve's research was mostly focused on binary and variable stars, stellar rotation and interstellar matter. He was one of the few eminent astronomers...

In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is...

previous estimates of the stellar rotation period. This indicates that the signal is very likely to be caused by the stellar rotation, rather than an orbiting...

because interstellar lines are much narrower than those broadened by stellar rotation. Sodium has also been detected in numerous Solar System environments...

within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse and form stars. As a branch...