Ta'ãnga:Janus - Voyager 2.jpg

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Janus_-_Voyager_2.jpg ‎(250 × 250 píxeles; tamaño de archivo: 8 kB; tipo MIME: image/jpeg)

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Resumen

Mombe'uangaJanus - Voyager 2.jpg	English: This is a colorized version of the high-resolution Voyager 2 spacecraft image of Janus that was taken on 25 August 1981. Janus was discovered by Audouin Dollfus in 1966 and was named after the god of gates and doorways. It is depicted with two faces looking in opposite directions. Janus has an irregular shape with a size of 196x192x150 kilometers (122x119x93 miles) in diameter. It is heavily cratered with several craters 30 kilometers (19 miles) in diameter. The pervasive cratering indicates that its surface must be several billion years old. Janus and Epimetheus share the same orbit of 151,472 kilometers (94,125 miles) from Saturn's center or 91,000 kilometers (56,547 miles) above the cloud tops. They are only separated by about 50 kilometers (31 miles). As these two satellites approach each other they exchange a little momentum and trade orbits; the inner satellite becomes the outer and the outer moves to the inner position. This exchange happens about once every four years. Janus and Epimetheus may have formed from a disruption of a single parent to form co-orbital satellites. If this is the case, the disruption must have happened early in the history of the satellite system.
Arange	25 de jasypoapy de 1981
Moõgui oguenohẽ	http://solarviews.com/cap/sat/janus5.htm (image link)
Apohára	NASA (Voyager 2 mission)/Calvin J. Hamilton

Licencia

	Este archivo es de dominio público* porque fue creado por la NASA. Las políticas sobre copyright de la NASA estipulan que «el material de la NASA no está protegido con* copyright a menos que se indique lo contrario». (Políticas sobre copyright de la NASA o Políticas sobre la utilización de imágenes del Jet Propulsion Laboratory).
	Advertencias: El uso del logotipo de la NASA (incluidos el logotipo actual y los anteriores) está restringido. El sitio web de la NASA almacena una gran cantidad de imágenes del Programa Espacial de la URSS, de la Agencia Espacial Federal Rusa y otras agencias espaciales no estadounidenses. Estas imágenes no son de dominio público. Material del Telescopio espacial Hubble puede tener copyright si no proviene explícitamente del Space Telescope Science Institute. [1] Todo el material creado por la sonda espacial SOHO está protegido por copyright y requiere permiso para ser utilizado con fines comerciales o no educativos. [2] Las imágenes que figuran en el sitio web Astronomy Picture of the Day (APOD) pueden tener copyright. [3]

Registro original de carga

(All user names refer to it.wikipedia)

2006-09-22 20:36 Alessio Rolleri 250×250×8 (7713 bytes) Giano ripreso dalla sonda Voyager 2 Fonte: http://solarsystem.nasa.gov/planets/images/inset-sat_janus-large.gif {{PD-NASA}}

Marandurenda rembiasakue

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	Ára/Aravo	Tuichakue	Puruhára	Jehaimombyky
ko’ag̃agua	22:41 21 jasypokõi 2019	250 × 250 (8 kB)	BevinKacon	Reverted to version as of 11:02, 15 November 2007 (UTC) no improvements since original upload
	08:51 5 jasypo 2015	248 × 253 (14 kB)	Jcpag2012	larger, re-cropped
	06:31 29 jasyapy 2015	250 × 250 (8 kB)	Jcpag2012	Reverted to version as of 11:02, 15 November 2007
	02:27 26 jasyapy 2015	250 × 250 (8 kB)	Huntster	Reverted to version as of 11:02, 15 November 2007; unnecessary and inappropriate upsampling.
	08:30 24 jasykõi 2015	1000 × 1072 (319 kB)	Jcpag2012	processing with Paint.NET
	11:02 15 jasypateĩ 2007	250 × 250 (8 kB)	File Upload Bot (Magnus Manske)	{{BotMoveToCommons\|it.wikipedia}} {{Information \|Description={{it\|Giano ripreso dalla sonda Voyager 2 Fonte: http://solarsystem.nasa.gov/planets/images/inset-sat_janus-large.gif}} \|Source=Originally from [http://it.wikipedia.org it.wikipedia]; descripti