Resultado de búsqueda
Hace 4 días · It is a distinctly reddish, semiregular variable star whose apparent magnitude, varying between +0.0 and +1.6, has the widest range displayed by any first-magnitude star. Betelgeuse is the brightest star in the night sky at near-infrared wavelengths.
12 de jun. de 2024 · Variable star: A variable star is a star whose brightness as seen from Earth fluctuates over time. These fluctuations can be due to intrinsic properties of the star or extrinsic factors such as eclipses by orbiting bodies.
17 de jun. de 2024 · Star - Pulsation, Variability, Luminosity: An impressive body of evidence indicates that stellar pulsations can account for the variability of Cepheids, long-period variables, semiregular variables, Beta Canis Majoris stars, and even the irregular red variables.
17 de jun. de 2024 · Star, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. This article describes the properties and evolution of individual stars. Included in the discussion are the sizes, energetics, temperatures, masses, and chemical compositions of stars.
Hace 2 días · Variable stars have periodic or random changes in luminosity because of intrinsic or extrinsic properties. Of the intrinsically variable stars, the primary types can be subdivided into three principal groups.
15 de jun. de 2024 · First off, all stars (including our Sun) are variable to some small extent. However, this variability may not be detectable using typical amateur equipment. The short answer is no, all binary stars are not variable stars from our vantage point on Earth.
11 de jun. de 2024 · Antares, red, semiregular variable star, with apparent visual magnitude about 1.1, the brightest star in the zodiacal constellation Scorpius and one of the largest known stars, having several hundred times the diameter of the Sun and 10,000 times the Sun’s luminosity.
