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to the stars: A common name or motto, in whole or part, among many publications ad astra per aspera: to the stars through difficulties: i.e., "a rough road leads to the stars", as on the Launch Complex 34 memorial plaque for the astronauts of Apollo 1. Used as a motto by the State of Kansas and other organisations ad augusta per angusta
A-type star In the Harvard spectral classification system, a class of main-sequence star having spectra dominated by Balmer absorption lines of hydrogen. Stars of spectral class A are typically blue-white or white in color, measure between 1.4 and 2.1 times the mass of the Sun, and have surface temperatures of 7,600–10,000 kelvin.
In Greek and Roman mythology and religion, Sirius (/ ˈ s ɪ r ɪ ə s /, SEE-ree-əss; Ancient Greek: Σείριος, romanized: Seírios, lit. 'scorching' pronounced) is the god and personification of the star Sirius, also known as the Dog Star, the brightest star in the night sky and the most prominent star in the constellation of Canis Major (or the Greater Dog). [1]
The primary is a white-hued star of magnitude 4.5 and an α 2 Canum Venaticorum variable, the secondary is a yellow-hued star of magnitude 6.9, and the tertiary is a star of magnitude 8.4. The primary and secondary are close together but the primary and tertiary are widely separated.
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Stellar winds from main-sequence stars do not strongly influence the evolution of lower-mass stars such as the Sun. However, for more massive stars such as O stars, the mass loss can result in a star shedding as much as 50% of its mass whilst on the main sequence: this clearly has a significant impact on the later stages of evolution.
Massive stars can collapse into black holes. Tyson then describes that stars can only be so large, using the example of Eta Carinae which is considered an unstable solar mass that could become a hypernova in the relatively near future. Tyson ends describing how all matter on Earth is the same stuff that stars are made of, and that light and ...
Cwtch (Welsh pronunciation:) is a Welsh-language and Welsh-English dialect word meaning a cuddle or embrace, with a sense of offering warmth and safety. Often considered untranslatable, the word originated as a colloquialism in South Wales, but is today seen as uniquely representative of Wales, Welsh national identity, and Welsh culture.