Lühikirjeldus

KirjeldusS2007 S 4 PIA08369.gif	Animated GIF of discovery images of Saturnian moon S/2007 S 4
Kuupäev	30. mai 2007
Allikas	http://photojournal.jpl.nasa.gov/catalog/PIA08369 This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA08369. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages: العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−
Autor	NASA/JPL/Space Science Institute
Teised versioonid	still image

Original Caption Released with Image:

The 60th moon of Saturn reveals itself in a sequence of images. The discovery suggests that the new moon, along with its neighbors Methone and Pallene (discovered by the Cassini imaging team in 2004), may form part of a larger group of moons in this region. The movie spans six hours.

Initial calculations show the moon to have a width of approximately 2 kilometers (1.2 miles), with an orbit that lies between those of the moons Methone and Pallene. The moon's orbit is in resonance with another moon, Mimas, also seen in this sequence as a very bright, moving object. The new moon's location is indicated by a red box.

The (narrow) ring visible in the images is the G ring, and the G ring arc passes through the field of view during the course of the movie. Calypso, a Trojan moon of Tethys, is also visible in the sequence. Trojan moons are found near gravitationally stable points ahead or behind a larger moon.

This view looks toward the non-illuminated side of the rings from about 3 degrees above the ringplane.

The series of images was taken in visible light with the Cassini spacecraft wide-angle camera on May 30, 2007, at a distance of approximately 1.76 million kilometers (1.09 million miles) from Saturn. Image scale is about 105 kilometers (65 miles) per pixel. The ghostly shape that stretches across the scene results from scattered light within the camera optics.

Litsents

	See fail on avalikus omandis, sest selle autori NASA autoriõiguspõhimõtte järgi ei ole ilma vastava märketa NASA materjalid autoriõigusega kaitstud. (NASA autoriõiguspõhimõtted või JPL-i piltide kasutuspõhimõtted).
	Hoiatused: NASA logode, ametlike märkide ja embleemide kasutamine on piiratud Ameerika Ühendriikide seadusega 14 CFR 1221. NASA võrgukohas on üleval hulganisti Nõukogude/Vene kosmoseagentuuri ja muude mitte-Ameerika kosmoseagentuuride pilte, mis ei pruugi avalikus omandis olla. Hubble'i teleskoobi materjalid võivad autoriõigusega kaitstud olla, kui nad ei pärine sõnaselgelt STScI-st. [1] Automaatjaamaga SOHO tehtud materjalid on autoriõigusega kaitstud ja vajavad äriliseks mittehariduslikuks kasutuseks luba. [2] Võrgulehel APOD kujutatud pildid võivad autoriõigusega kaitstud olla. [3]