Astronomy:Fornjot (moon)

Fornjot
	Fornjot imaged by the Cassini spacecraft in March 2014
Discovery
Discovered by	Scott S. Sheppard; David C. Jewitt; Jan T. Kleyna; Brian G. Marsden
Discovery date	December 2004
Designations
Designation	Saturn XLII
Pronunciation	/ˈfɔːrnjoʊt/; Icelandic: [ˈfɔ(r)tnˌjouːt]
Named after	Fornjót
Alternative names	S/2004 S 8
Orbital characteristics
Semi-major axis	25108000 km
Eccentricity	0.206
Orbital period	−1490.9 days
Inclination	170.4°
Satellite of	Saturn
Group	Norse group
Physical characteristics
Mean diameter	6+50%; −30% km
Rotation period	(6.9 or 9.5) ± 0.4? h
Apparent magnitude	24.6

Short description: Moon of saturn

Fornjot /ˈfɔːrnjoʊt/ or Saturn XLII is the outermost named moon of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 4 May 2005 from observations taken between 12 December 2004, and 11 March 2005. It had the largest semi-major axis among all the known moons of Saturn^[3] until the recovery of Saturn LVIII in 2019.^[1]

It is about 6 kilometres in diameter, and it orbits Saturn at an average distance of 23,609 Mm in 1491 d at an inclination of 168° to the ecliptic (160° to Saturn's equator) in a retrograde direction and with an eccentricity of 0.186. It is ambiguous whether the rotation period is 6.9 or 9.5±0.4 hours, but it is known to show very little variation in brightness and is probably very round in shape. It was also the faintest moon that was measured by Cassini–Huygens.^[2]^[3]

Fornjot was named after Fornjót, a giant in Norse mythology.

References

↑ ^1.0 ^1.1 S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
↑ ^2.0 ^2.1 ^2.2 Denk, T.; Mottola, S. (2019). "Cassini Observations of Saturn's Irregular Moons". 50th Lunar and Planetary Science Conference. Lunar and Planetary Institute. https://www.hou.usra.edu/meetings/lpsc2019/pdf/2654.pdf.
↑ ^3.0 ^3.1 Denk, T.; Mottola, S.; Bottke, W. F.; Hamilton, D. P. (2018). "The Irregular Satellites of Saturn". Enceladus and the Icy Moons of Saturn. 322. University of Arizona Press. pp. 409–434. doi:10.2458/azu_uapress_9780816537075-ch020. ISBN 9780816537488. Bibcode: 2018eims.book..409D. https://tilmanndenk.de/wp-content/uploads/DenkEtAl2018_IrregularMoons.pdf.

Institute for Astronomy Saturn Satellite Data
Jewitt's New Satellites of Saturn page
IAUC 8523: New Satellites of Saturn^{[yes|permanent dead link|dead link}}]} May 4, 2005 (discovery)
MPEC 2005-J13: Twelve New Satellites of Saturn May 3, 2005 (discovery and ephemeris)
IAUC 8826: Satellites of Jupiter and Saturn^{[yes|permanent dead link|dead link}}]} April 5, 2007 (naming the moon)

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Fornjot (moon). Read more

[SheppardMoons-1] 1.0 ^1.1 S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line

[LPSC2654-2] 2.0 ^2.1 ^2.2 Denk, T.; Mottola, S. (2019). "Cassini Observations of Saturn's Irregular Moons". 50th Lunar and Planetary Science Conference. Lunar and Planetary Institute. https://www.hou.usra.edu/meetings/lpsc2019/pdf/2654.pdf.

[Denk2018-3] 3.0 ^3.1 Denk, T.; Mottola, S.; Bottke, W. F.; Hamilton, D. P. (2018). "The Irregular Satellites of Saturn". Enceladus and the Icy Moons of Saturn. 322. University of Arizona Press. pp. 409–434. doi:10.2458/azu_uapress_9780816537075-ch020. ISBN 9780816537488. Bibcode: 2018eims.book..409D. https://tilmanndenk.de/wp-content/uploads/DenkEtAl2018_IrregularMoons.pdf.

[1]

[2]

[3]

v t e Saturn
Outline of Saturn
Geography	Dragon Storm Great White Spot Hexagon Magnetosphere Rings
Moons	S/2009 S 1 Ring moonlets Pan Daphnis Atlas Prometheus S/2004 S 6 S/2004 S 4 S/2004 S 3 Pandora Epimetheus Janus Aegaeon Mimas Methone Anthe Pallene Enceladus Tethys Telesto Calypso Dione Helene Polydeuces Rhea Titan Hyperion Iapetus Kiviuq Ijiraq Phoebe Paaliaq Skathi S/2004 S 37 Albiorix S/2007 S 2 S/2004 S 29 Bebhionn Erriapus Skoll S/2004 S 31 Siarnaq Tarqeq S/2004 S 13 Greip Hyrrokkin Jarnsaxa Tarvos Mundilfari S/2006 S 1 S/2004 S 17 Bergelmir Narvi S/2004 S 20 Suttungr Hati S/2004 S 12 S/2004 S 27 Farbauti Thrymr S/2004 S 30 Aegir S/2007 S 3 Bestla S/2004 S 7 S/2004 S 22 S/2004 S 23 S/2004 S 25 S/2004 S 32 S/2006 S 3 S/2004 S 38 Fenrir S/2004 S 28 Surtur Kari S/2004 S 35 Ymir S/2004 S 21 S/2004 S 24 Loge S/2004 S 36 S/2004 S 39 S/2004 S 33 S/2004 S 34 Fornjot S/2004 S 26
Astronomy	Delta Octantis Saturn-crossing minor planets
Exploration	Cassini–Huygens (Huygens) timeline retirement Pioneer 11 Voyager program Voyager 1 Voyager 2
Related	Fiction Moons The Day the Earth Smiled In Saturn's Rings (2018 documentary)

v t e Natural satellites of the Solar System
Planetary satellites	Terrestrial Martian Jovian Saturnian Uranian Neptunian
Dwarf-planet satellites	Plutonian Haumean Makemakean Eridian OR₁₀ Quaoaran Orcean
Minor-planet moons	Main belt binaries: Antiope Frostia Berna Tokai Ostro Balam Doppler Pauling Iwamoto Wolff Bettig Christophedumas Trojans: Patroclus–Menoetius Hektor–Skamandrios Iphthime Eurydamas TNOs: Huya Typhon–Echidna Lempo–Paha–Hiisi 2002 UX₂₅ Logos–Zoe Ceto–Phorcys Borasisi–Pabu Sila–Nunam Teharonhiawako–Sawiskera Salacia–Actaea 2002 WC₁₉ Altjira Varda–Ilmarë 2003 AZ₈₄ Gǃkúnǁʼhòmdímà–Gǃòʼé ǃHú Mors–Somnus Manwë–Thorondor ǂKá̦gára–ǃHãunu 2013 FY27
Ranked by size	Planetary-mass moon Ganymede largest: 5268 km / 0.413 Earths Titan Callisto Io Moon Europa Triton Titania Rhea Oberon Iapetus Charon Umbriel Ariel Dione Tethys Dysnomia Enceladus Miranda Vanth Proteus Mimas Ilmarë Nereid Hiʻiaka Actaea Hyperion ...
Discovery timeline Inner moons Irregular moons List Planetary-mass moons Naming Subsatellite Regular moons Trojan moons

v t e Moons of Saturn
Listed in approximately increasing distance from Saturn.
Ring shepherds	S/2009 S 1 Ring moonlets Pan Daphnis Atlas Prometheus Pandora
Co-orbitals	Epimetheus Janus
G Ring	Aegaeon
Alkyonides	Methone Anthe Pallene
Inner large (with trojans)	Mimas Enceladus Tethys Telesto Calypso Dione Helene Polydeuces
Outer large	Rhea Titan Hyperion Iapetus
Inuit group	Kiviuq Ijiraq Paaliaq S/2004 S 29 S/2004 S 31 Siarnaq Tarqeq
Norse group	Phoebe Skathi S/2004 S 37 S/2007 S 2 Skoll S/2004 S 13(?) Greip Hyrrokkin Jarnsaxa Mundilfari S/2006 S 1 S/2004 S 17(?) Bergelmir Narvi S/2004 S 20 Suttungr Hati S/2004 S 12(?) S/2004 S 27 Farbauti Thrymr S/2004 S 30 Aegir S/2007 S 3(?) Bestla S/2004 S 7(?) S/2004 S 22(?) S/2004 S 23(?) S/2004 S 25(?) S/2004 S 32(?) S/2006 S 3 S/2004 S 38(?) Fenrir S/2004 S 28(?) Surtur Kari S/2004 S 35(?) Ymir S/2004 S 21(?) Loge S/2004 S 36(?) S/2004 S 39(?) S/2004 S 33(?) S/2004 S 34(?) Fornjot S/2004 S 26(?)
Gallic group	Albiorix Bebhionn Erriapus Tarvos
Prograde outer satellites	S/2004 S 24
Rings of Saturn Cassini–Huygens Themis Chiron S/2004 S 6 S/2004 S 4 S/2004 S 3 In fiction

Anonymous

Search

Astronomy:Fornjot (moon)

Namespaces

More

Page actions

References

Navigation

Navigation

Help

Translate

Wiki tools

Wiki tools

Discovery
Fornjot imaged by the Cassini spacecraft in March 2014
Discovered by	Scott S. Sheppard David C. Jewitt Jan T. Kleyna Brian G. Marsden
Discovery date	December 2004
Designations
Designation	Saturn XLII
Pronunciation	/ˈfɔːrnjoʊt/ Icelandic: [ˈfɔ(r)tnˌjouːt]
Named after	Fornjót
Alternative names	S/2004 S 8
Orbital characteristics ^[1]
Semi-major axis	25108000 km
Eccentricity	0.206
Orbital period	−1490.9 days
Inclination	170.4°
Satellite of	Saturn
Group	Norse group
Physical characteristics
Mean diameter	6+50% −30% km^[2]
Rotation period	(6.9 or 9.5) ± 0.4? h^[2]
Apparent magnitude	24.6

Anonymous

Search

Astronomy:Fornjot (moon)

References

Navigation

Wiki tools

Page tools

Other projects

Categories