chromosphere spicule

См. также в других словарях:

• spicule — [ spikyl ] n. m. • 1830; lat. spiculum « dard » 1 ♦ Sc. nat. Structure animale, végétale ou minérale, en forme d épi ou de dard. Spécialt Chacun des petits bâtonnets calcaires ou siliceux constituant le squelette des éponges. 2 ♦ (1959) Astron.… …   Encyclopédie Universelle

• spicule — [spik′yo͞ol΄] n. [< ModL & L: ModL spicula < ML, head of a lance or arrow < L spiculum, dim. of spica, a point, ear, SPIKE2] 1. Astron. any of the short lived, bright, dense gas jets continuously spurting up through the chromosphere of… …   English World dictionary

• Chromosphere — The Sun observed through a telescope with an H alpha filter …   Wikipedia

• Spicule (solar physics) — In solar physics, a spicule is a dynamic jet of about 500km diameter on the Sun. It moves upwards at about 20 km/s from the photosphere. They were discovered in 1877 by Father Angelo Secchi of the Vatican Observatory in Rome. The chromosphere is… …   Wikipedia

• Spicule (astronomie) — Pour les articles homonymes, voir Spicule. Les spicules sont des jets de gaz éphémères s élevant à grande vitesse se trouvant dans la chromosphère (couche externe de gaz entourant le Soleil). C est Angelo Secchi qui découvre les spicules en 1877… …   Wikipédia en Français

• spicule — /spik yoohl/, n. 1. a small or minute, slender, sharp pointed body or part; a small, needlelike crystal, process, or the like. 2. Zool. one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine… …   Universalium

• spicule — noun Etymology: New Latin spicula & Latin spiculum; New Latin spicula, alteration of Latin spiculum head of a spear or arrow, diminutive of spicum, spica ear of grain Date: 1785 1. a slender pointed usually hard body; especially one of the minute …   New Collegiate Dictionary

• sun — sunlike, adj. /sun/, n., v., sunned, sunning. n. 1. (often cap.) the star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat: its mean distance from the earth is about 93… …   Universalium

• Soleil — Pour les articles homonymes, voir soleil (homonymie). Soleil …   Wikipédia en Français

• Corona — This article is about the astronomical term. For other uses, see Corona (disambiguation). During a total solar eclipse, the solar corona can be seen with the naked eye. A corona is a type of plasma atmosphere of the Sun or other celestial body,… …   Wikipedia

• Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun …   Wikipedia