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Red supergiants develop deep convection zones reaching from the surface over halfway to the core and these cause strong enrichment of nitrogen at the surface, with some enrichment of heavier elements. [26] Some red supergiants undergo blue loops where they temporarily increase in temperature before returning to the red supergiant state. This ...
VY Canis Majoris (abbreviated to VY CMa) is an extreme oxygen-rich red hypergiant or red supergiant (O-rich RHG or RSG) and pulsating variable star 1.2 kiloparsecs (3,900 light-years) from the Solar System in the slightly southern constellation of Canis Major.
UY Scuti is a dust-enshrouded bright red supergiant [16] and is classified as a semiregular variable with an approximate pulsation period of 740 days. [5] [17] [18] Based on an old radius of 1,708 R ☉, this pulsation would be an overtone of the fundamental pulsation period, or it may be a fundamental mode corresponding to a smaller radius. [19]
The discovery challenges current models of galaxy formation, scientists say
A big male red kangaroo named Quincy hopping in Dresden Zoo, Germany. At times, red kangaroos congregate in large numbers; in areas with much forage, these groups can number as much as 1,500 individuals. Red kangaroos are mostly crepuscular and nocturnal, resting in the shade during the day. [27] However, they sometimes move about during the day.
A red giant star with one of the largest ranges in brightness known of stars in the night sky visible to the unaided eye. Despite its large radius, it is less massive than the Sun. 119 Tauri (CE Tauri, Ruby Star) 587 – 593 [74] AD ρ Cassiopeiae: 564 ± 67 or 700 ± 112 [75] AD
The 15 Biggest Ferris Wheels in the World, Ranked from Huge to Absolutely Massive. Sarah Ashley. February 1, 2023 at 9:00 AM. Ferris wheels have been popular since George Washington Gale Ferris Jr
Black holes are the end point of the evolution of massive stars. [A] Technically they are not stars, as they no longer generate heat and light via nuclear fusion in their cores. Some black holes may have cosmological origins, and would then never have been stars. This is thought to be especially likely in the cases of the most massive black holes.