Iapetus (buwan)
Appearance
![]() Photomosaic of Cassini images taken Dec. 31, 2004, showing the dark Cassini Regio and its border with the bright Roncevaux Terra, several large craters (Falsaron above center, Turgis, the largest, at right), and the equatorial ridge (the Toledo and Tortelosa Montes) | |
Pagkatuklas | |
---|---|
Natuklasan ni | G. D. Cassini |
Natuklasan noong | October 25, 1671 |
Designasyon | |
Ibang designasyon | Saturn VIII |
Pang-uri | Iapetian, Japetian |
Orbital characteristics | |
Semi-major axis | 3560820 km |
Eccentricity | 0.0286125 [1] |
Orbital period | 79.3215 d |
Average orbital speed | 3.26 km/s |
Inclination |
|
Satellite of | Saturn |
Pisikal na katangian | |
Dimensiyon | 1,492.0 × 1,492.0 × 1,424 km [3] |
Mean radius | 734.5±2.8 km [3] |
Pang-ibabaw na sukat | 6700000 km2 |
Mass | (1.805635±0.000375)×1021 kg [4] |
Mean density | 1.088±0.013 g/cm³ [3] |
Surface gravity | 0.224 m/s2 |
Escape velocity | 0.573 km/s |
Rotation period | 79.3215 d (synchronous) |
Axial tilt | zero |
Albedo | 0.05–0.5[5] |
Temperature | 90–130 K |
Apparent magnitude | 10.2–11.9[6] |
Ang Iapetus ay isang buwan sa Saturn.
pinagmulan
[baguhin | baguhin ang wikitext]- ↑ "Pseudo-MPEC for Saturn VIII". Inarkibo mula sa ang orihinal noong 2012-02-22. Nakuha noong 2015-02-12.
{{cite web}}
: CS1 maint: date auto-translated (link) - ↑ Jacobson, R.A. (2009) SAT317 (2009-12-17). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. Nakuha noong 2011-01-15.
{{cite web}}
: CS1 maint: date auto-translated (link) - ↑ 3.0 3.1 3.2 Roatsch, Th.; Jaumann, R.; Stephan, K.; Thomas, P. C. (2009). "Cartographic Mapping of the Icy Satellites Using ISS and VIMS Data": 763–781. doi:10.1007/978-1-4020-9217-6_24.
{{cite journal}}
: Cite journal requires|journal=
(tulong)CS1 maint: date auto-translated (link) - ↑ Jacobson, R. A.; Antreasian, P. G.; Bordi, J. J.; Criddle, K. E.; Ionasescu, R.; Jones, J. B.; Mackenzie, R. A.; Meek, M. C.; Parcher, D.; Pelletier, F. J.; Owen, Jr., W. M.; Roth, D. C.; Roundhill, I. M.; Stauch, J. R. (2006). "The Gravity Field of the Saturnian System from Satellite Observations and Spacecraft Tracking Data". The Astronomical Journal. 132 (6): 2520–2526. doi:10.1086/508812. ISSN 0004-6256.
{{cite journal}}
: CS1 maint: date auto-translated (link) - ↑ Williams, David R. "Saturnian Satellite Fact Sheet". NASA. Nakuha noong 2007-11-04.
{{cite web}}
: CS1 maint: date auto-translated (link) - ↑ Observatorio ARVAL (2007-04-15). "Classic Satellites of the Solar System". Observatorio ARVAL. Inarkibo mula sa ang orihinal noong 2018-12-25. Nakuha noong 2011-12-17.
{{cite web}}
: CS1 maint: date auto-translated (link)
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