Bebhionn (moon)
Bebhionn (/ˈbeɪvɪn, ˈbɛviɒn/), also known as Saturn XXXVII, is a small, irregular natural satellite 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 9 March 2005.
Bebhionn is about 6 kilometres in diameter and orbits Saturn at an average distance of 16,898 Mm in 820.130 days at an inclination of 41° to the ecliptic (18° to Saturn's equator) and with an eccentricity of 0.333. The rotation period of Bebhionn was measured at 16.33±0.03 hours by the ISS camera of the Cassini spacecraft.[2][4] Bebhionn's light curve reflects an elongated shape with large variations in brightness, making it a leading candidate for a contact binary or binary moon.[3]
Name
The moon was named in April 2007 after Béibhinn (Béḃinn), an early Irish goddess of birth, who was renowned for her beauty. In Irish, Béibhinn/Béḃinn is pronounced [ˈbʲeːvʲiːn̠ʲ] (southern accents, English approximation /ˈbeɪviːn/ BAY-veen) or [ˈbʲeːvʲɪn̠ʲ] (northern accents, English approximation /ˈbeɪvɪn/ BAY-vin). The spelling "bh" (older "ḃ") indicates that the second consonant is softened to a "v" sound. The extra "o" in the unusual spelling Bebhionn suggests that the final "nn" should be broad [n̪ˠ], but is not itself pronounced. The name is still pronounced as a compound (and thus sometimes spelled Bé Binn etc.), so the unstressed vowel is not reduced to a schwa.
References
- ^ S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
- ^ a b Denk, T.; Mottola, S. (2019). Cassini Observations of Saturn's Irregular Moons (PDF). 50th Lunar and Planetary Science Conference. Lunar and Planetary Institute.
- ^ a b Denk, Tilmann; Mottola, Stefano; Tosi, Frederico; Bottke, William F.; Hamilton, Douglas P. (2018). "The Irregular Satellites of Saturn" (PDF). In Schenk, P.M.; Clark, R.N.; Howett, C.J.A.; Verbiscer, A.J.; Waite, J.H. (eds.). Enceladus and the Icy Moons of Saturn. Space Science Series. Vol. 322. Tucson, AZ: The University of Arizona Press. pp. 409–434. Bibcode:2018eims.book..409D. doi:10.2458/azu_uapress_9780816537075-ch020. ISBN 9780816537075.
- ^ T. Denk, S. Mottola, et al. (2011): Rotation Periods of Irregular Satellites of Saturn. EPSC/DPS conference 2011, Nantes (France), abstract 1452.
External links
- Institute for Astronomy Saturn Satellite Data
- Jewitt's New Satellites of Saturn page May 3, 2005 (includes discovery images)
- IAUC 8523: New Satellites of Saturn 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 April 5, 2007 (naming the moon)
- v
- t
- e
- S/2009 S 1
- Aegaeon
- Pan
- Daphnis
- Prometheus
- Epimetheus
- Janus
- Atlas
- Pandora
- Methone
- Anthe
- Pallene
(with trojans)
Kiviuq subgroup |
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Paaliaq subgroup | |
Siarnaq subgroup |
- Albiorix
- Bebhionn
- S/2007 S 8
- Saturn LX
- Erriapus
- Tarvos
- S/2020 S 4
Phoebe subgroup |
|
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- Skathi
- S/2007 S 5
- S/2007 S 7
- S/2007 S 2
- S/2004 S 37
- S/2004 S 47
- S/2004 S 40
- S/2019 S 2
- S/2019 S 3
- S/2020 S 7
- Skoll
- S/2020 S 2
- S/2019 S 4
- S/2004 S 41
- S/2004 S 42
- Hyrrokkin
- Greip
- S/2004 S 13
- S/2007 S 6
- Mundilfari
- S/2006 S 1
- S/2004 S 43
- S/2006 S 10
- S/2019 S 5
- Gridr
- Bergelmir
- Jarnsaxa
- Narvi
- Suttungr
- S/2007 S 3
- S/2004 S 44
- S/2004 S 45
- Hati
- S/2004 S 17
- S/2006 S 11
- S/2004 S 12
- Eggther
- S/2006 S 13
- S/2007 S 9
- S/2019 S 7
- S/2019 S 8
- Farbauti
- Thrymr
- Bestla
- S/2019 S 9
- S/2004 S 46
- Angrboda
- S/2019 S 11
- Aegir
- Beli
- S/2019 S 10
- S/2019 S 12
- Gerd
- S/2019 S 13
- S/2006 S 14
- Gunnlod
- S/2019 S 15
- S/2020 S 6
- S/2004 S 7
- S/2006 S 3
- S/2005 S 5
- Skrymir
- S/2006 S 16
- S/2006 S 15
- S/2004 S 28
- S/2020 S 8
- Alvaldi
- Kari
- S/2004 S 48
- Geirrod
- Fenrir
- S/2004 S 50
- S/2006 S 17
- S/2004 S 49
- S/2019 S 17
- Surtur
- S/2006 S 18
- Loge
- Ymir
- S/2019 S 19
- S/2004 S 21
- S/2019 S 18
- S/2004 S 39
- S/2019 S 16
- S/2004 S 53
- S/2004 S 36
- Thiazzi
- S/2019 S 20
- S/2006 S 19
- Saturn LXIV
- Fornjot
- S/2004 S 51
- S/2020 S 10
- S/2020 S 9
- Saturn LVIII
- S/2019 S 21
- S/2004 S 52
irregular moons
- Rings of Saturn
- Cassini–Huygens
- Chiron
- Chrysalis
- Themis
- S/2004 S 3
- S/2004 S 4
- S/2004 S 6
- In fiction