Datoteka:PIA00072 Venus Cloud Patterns - colorized and filtered.jpg

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Sažetak

Opis

English: This picture of Venus was taken by the Galileo spacecraft’s Solid State Imaging System on February 14, 1990, at a range of almost 1.7 million miles from the planet. A highpass spatial filter has been applied in order to emphasize the smaller scale cloud features, and the rendition has been colorized to a bluish hue in order to emphasize the subtle contrasts in the cloud markings and to indicate that it was taken through a violet filter.

The sulfuric acid clouds indicate considerable convective activity, in the equatorial regions of the planet to the left and downwind of the subsolar point (afternoon on Venus). They are analogous to “fair weather clouds” on Earth.

The filamentary dark features visible in the colorized image are here revealed to be composed of several dark nodules, like beads on a string, each about 60 miles across. The Galileo Project is managed for NASA's Office of Space Science and Applications by the Jet Propulsion Laboratory; its mission is to study Jupiter and its satellites and magnetosphere after multiple gravity assist flybys at Venus and Earth.

Español: Esta imagen de Venus fue captada por el Sistema de Formación de Imágenes de Estado Sólido de la nave espacial Galileo el 14 de febrero de 1990 a una distancia de más de 2,7 millones de kilómetros del planeta. Se ha aplicado un filtro especial para eliminar frecuencias bajas (highpass) y así poder apreciar mejor las características de las nubes a pequeña escala; asimismo, se ha coloreado la imagen con un matiz azulado para enfatizar los sutiles contrastes en las marcas de las nubes e indicar que la fotografía se ha capturado utilizando un filtro violeta.

La presencia de nubes de ácido sulfúrico señala una considerable actividad convectiva, concretamente en las regiones ecuatoriales del planeta hacia la izquierda y a sotavento del punto subsolar (tarde venusina). Equivalen a lo que en la Tierra conoceríamos como «nubes de buen tiempo».

Los rasgos oscuros filamentosos que pueden apreciarse en esta imagen coloreada están compuestos de varios nódulos, semejantes a cuentas enhebradas en un hilo, de unos 97 kilómetros de longitud cada uno. El proyecto Galileo es gestionado por el Laboratorio de Propulsión a Reacción para la Oficina de Ciencia y Aplicaciones Espaciales de la NASA; su misión es estudiar Júpiter y sus satélites y magnetósfera tras diversos vuelos con asistencia gravitatoria sobre Venus y la Tierra.

Datum

14. veljače 1990.

Izvor

http://photojournal.jpl.nasa.gov/catalog/PIA00072

Autor

NASA/JPL-Caltech

Dopuštenje
(Naknadna uporaba ove datoteke)

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

Licencija

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[4] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [5] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [6] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Datum/Vrijeme	Minijatura	Dimenzije	Suradnik	Komentar
sadašnja	07:59, 28. ožujka 2015.		800 × 800 (40 KB)	Jcpag2012	same as larger (40 KB)
	16:24, 20. kolovoza 2006.		800 × 800 (209 KB)	Mithridates	==Summary== {{Information\| \|Description = *{{en\|This picture of Venus was taken by the Galileo spacecrafts Solid State Imaging System on February 14, 1990, at a range of almost 1.7 million miles from the planet. A highpass spatial filter has been applied