Kiviuq (moon) explained
| Discovery Ref: | [1] |
| Kiviuq |
| Adjectives: | Kiviupian, Kiviuqian |
| Named After: | Kiviuq |
| Discoverer: | J. J. Kavelaars et al. |
| Discovered: | 18 November 2000 |
| Mpc Name: | Saturn XXIV |
| Alt Names: | S/2000 S 5 |
| Epoch: | 2000 January 1.5 |
| Semimajor: | 11.307 Gm |
| Eccentricity: | 0.182 |
| Inclination: | 48.9 |
| Period: | 449.13 d
(1.23 yr) |
| Satellite Of: | Saturn |
| Group: | Inuit group (Kiviuq) |
| Orbit Ref: | [2] |
| Dimensions: | 38.42 × 17 × 7.64 km (modeled)[3] |
| Rotation: | h
h |
| Albedo: | 0.06 assumed |
| Spectral Type: | B−V=0.87
R−V=0.66[4] /0.48
D-type |
| Magnitude: | 22.0 |
| Abs Magnitude: | 12.6 |
Kiviuq is a prograde irregular satellite of Saturn. It was discovered by J. J. Kavelaars et al. in 2000,[5] and given the temporary designation S/2000 S 5.[6] [7] It was named after Kiviuq, a hero of Inuit mythology.[8]
Kiviuq is about 17 km in diameter, and orbits Saturn at an average distance of 11.3 million kilometers in 449 days. It is a member of the Inuit group of irregular satellites. It is light red, and the Kiviupian (Kiviuqan) infrared spectrum is very similar to the Inuit-group satellites Siarnaq and Paaliaq, supporting the thesis of a possible common origin of the Inuit group in the break-up of a larger body.[9] [10]
Kiviuq is believed to be in Kozai resonance, cyclically reducing its orbital inclination while increasing the eccentricity and vice versa.[11] Its current orbital elements overlap strongly with Phoebe's orbit, and the moons will likely eventually collide with each other.[12]
The light curve amplitude of Kiviuq is large, varying in brightness by over 2 magnitudes. The large amplitude of Kiviuq suggests that it has an elongated shape, and may be a possible contact binary.[13]
Exploration
On 30 August 2010, the ISS camera of the Cassini–Huygens spacecraft took light-curve data from a distance of 9.3 million km. With these data, the rotation period was measured to 21 hours and 49 minutes.[14]
Notes
- Web site: Planetary Satellite Discovery Circumstances . ssd.jpl.nasa.gov.
- Web site: Planetary Satellite Mean Elements . ssd.jpl.nasa.gov.
- Melnikov . A. V. . Kopylova . Yu. G. . 2022-12-01 . Simulation of the Rotational Dynamics and Light Curves of Saturn’s Small Moons in the Fast Rotation Mode . . en . . 56 . 6 . 403–410 . 10.1134/S0038094622050045 . 1608-3423.
- Grav . Tommy . Tommy Grav . Holman . Matthew J. . Matthew J. Holman . Gladman . Brett . Brett J. Gladman . Aksnes . Kaare . Kaare Aksnes . November 2003 . Photometric Survey of the Irregular Satellites . . 166 . 1 . 33–45 . 10.1016/j.icarus.2003.07.005 . arXiv. astro-ph/0301016 .
- Kavelaars . J. J. . John J. Kavelaars . Holman . M. J. . Matthew J. Holman . Grav . T. . Tommy Grav . Milisavljevic . D. . Dan Milisavljevic . Fraser . W. . Gladman . B. J. . Brett J. Gladman . Petit . J. -M. . Jean-Marc Petit . Rousselot . P. . Mousis . O. . Nicholson . P. D. . Phil Nicholson . 2004-06-01 . The discovery of faint irregular satellites of Uranus . . 169 . 2 . 474 . 10.1016/j.icarus.2004.01.009 . 0019-1035 . ScienceDirect.
- Web site: November 18, 2000 . IAUC 7521: S/2000 S 5, S/2000 S 6 . www.cbat.eps.harvard.edu.
- Web site: December 19, 2000 . MPEC 2000-Y14 : S/2000 S 3, S/2000 S 4, S/2000 S 5, S/2000 S 6, S/2000 S 10 . minorplanetcenter.net.
- Web site: August 8, 2003 . IAUC 8177: Sats OF (22); Sats OF JUPITER, SATURN, URANUS . www.cbat.eps.harvard.edu.
- Grav . T. . Tommy Grav . Bauer . J. . James Bauer (astronomer) . 2007-03-08 . 2006-11-18 . A deeper look at the colors of the Saturnian irregular satellites . . 191 . 1 . 267–285 . 10.1016/j.icarus.2007.04.020 . arXiv.
- Gladman . Brett . Brett Gladman . Kavelaars . J. J. . John J. Kavelaars . Holman . Matthew . Matthew J. Holman . Nicholson . Philip D. . Phil Nicholson . Burns . Joseph A. . Joseph A. Burns . Hergenrother . Carl W. . Carl W. Hergenrother . Petit . Jean-Marc . Jean-Marc Petit . Marsden . Brian G. . Brian G. Marsden . Jacobson . Robert . Gray . William . Grav . Tommy . Tommy Grav . 2001-07-12 . Discovery of 12 satellites of Saturn exhibiting orbital clustering . . en . 412 . 6843 . 163–166 . 10.1038/35084032 . 1476-4687.
- Cuk . Matija . Burns . Joseph A. . Joseph A. Burns . November 2004 . On the Secular Behavior of Irregular Satellites . . 128 . 5 . 2518–2541 . 10.1086/424937 . 0004-6256 . . free.
- Book: Denk . Tilmann . Enceladus and the Icy Moons of Saturn . Mottola . Stefano . Tosi . Frederico . Bottke . William F. . Hamilton . Douglas P. . . 2018 . 9780816537488 . 322 . 409–434 . The Irregular Satellites of Saturn . 2018eims.book..409D . 10.2458/azu_uapress_9780816537075-ch020.
- Denk . T. . Mottola . S. . 2019 . Cassini Observations of Saturn's Irregular Moons . 50th Lunar and Planetary Science Conference . . 2132.
- Denk . T . Mottola . S . 2011 . Rotation periods of irregular satellites of Saturn . EPSC/DPS conference 2011 . 6 . http://meetings.copernicus.org/epsc-dps2011/.
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