Povzetek

OpisS2007 S 4 PIA08369.gif	Animated GIF of discovery images of Saturnian moon S/2007 S 4
Datum	30. maja 2007
Vir	http://photojournal.jpl.nasa.gov/catalog/PIA08369 To sliko ali ta video je katalogiziral Jet Propulsion Laboratory Nacionalne uprave za aeronavtiko in vesolje (NASA) Združenih držav Amerike pod oznako fotografije: PIA08369. Ta predloga ne označuje avtorskopravnega stanja dela. Ob njej mora stati tudi običajna oznaka avtorskopravnega stanja gradiva. Glejte Commons:Navedba licence. Drugi jeziki: 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 ∙ +/−
Avtor	NASA/JPL/Space Science Institute
Druge različice	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.

Licenca

	Ta datoteka je v javni domeni, ker jo je izdelala izključno NASA. Avtorskopravna politika NASE pravi, da »Gradivo NASE ni zaščiteno z avtorskimi pravicami, razen če je rečeno drugače.« (glej Template:PD-USGov, stran z avtorskopravno politiko NASE ali Politiko uporabe slik JPL.)
	Opozorila: Uporaba logotipov NASE, njenih insignij in emblemov je omejena z ameriškim zakonom 14 CFR 1221. Spletno mesto NASE gosti številne slike sovjetske/ruske vesoljske agencije in drugih neameriških vesoljskih agencij. Te niso nujno v javni domeni. Gradivo, ki temelji na podatkih vesoljskega teleskopa Hubble, je lahko avtorsko varovano, če ni izrecno delo inštituta STScI.[1] Glejte tudi {{PD-Hubble}} in {{Cc-Hubble}}. Vse gradivo skupnega projekta ESE in NASE SOHO je zaščiteno z avtorskimi pravicami in je za njegovo neizobraževalno naravo v gospodarski namen potrebno dovoljenje. [2] Slike na spletnem portalu Astronomy Picture of the Day (APOD) so morda avtorsko varovane.[3] Nacionalni center vesoljskih znanstvenih podatkov (NSSDC) gostui tudi avtorsko varovano vsebino. V pogostih vprašanjih njegove galerije fotografij je navedeno, da so v javni domen vse slike fotogalerije, »razen če je navedeno drugače«.