Anthe (moon)

Nowadays, Anthe (moon) is a topic that has gained great relevance in today's society. People are increasingly interested in exploring and understanding the impact Anthe (moon) has on their daily lives. Whether from a personal, professional or social point of view, Anthe (moon) has become a fundamental element that we cannot ignore. That is why in this article we want to delve into the topic of Anthe (moon), exploring its different dimensions and trying to shed light on its importance in the modern world. We will delve into its origins, its evolution over time and how it has influenced the way we live and relate. Without a doubt, Anthe (moon) is a fascinating topic that deserves to be analyzed in depth.

Anthe
Anthe is the ellipsoid in the center
Discovery
Discovered byCassini Imaging Team [1]
Discovery dateMay 30, 2007
Designations
Designation
Saturn XLIX
Pronunciation/ˈænθiː/[a]
Named after
Άνθη Anthē
AdjectivesAnthean /ænˈθiːən/
Orbital characteristics [2]
197,700 km
Eccentricity0.0011
1.05089 d
13.824 km/s
Inclination0.1° to Saturn's equator
Satellite ofSaturn
GroupAlkyonides
Physical characteristics
Dimensions1.8 km [3]
0.9 km
Circumference≈ 5.7 km
10.18 km2
Volume3 km3
Mass1.5×1012 kg[4]
Mean density
0.5 g/cm3
0.00012 m/s2 (0.12 mm/s2)
≈ 0.56 m/s (≈ 2 km/h)
assumed synchronous

Anthe /ˈænθiː/ is a very small natural satellite of Saturn lying between the orbits of Mimas and Enceladus. It is also known as Saturn XLIX; its provisional designation was S/2007 S 4. It is named after one of the Alkyonides; the name means flowery. It is the sixtieth confirmed moon of Saturn.[5]

The designation S/2007 S 4 was also accidentally and incorrectly used for a different Saturnian satellite discovered later. The published discovery was retracted a few hours later and republished the next day under the correct name of S/2007 S 5.

It was discovered by the Cassini Imaging Team[1] in images taken on 30 May 2007.[2] Once the discovery was made, a search of older Cassini images revealed it in observations from as far back as June 2004. It was first announced on 18 July 2007.[2]

Discovery images of Anthe

Anthe is visibly affected by a perturbing 10:11 mean-longitude resonance with the much larger Mimas. This causes its osculating orbital elements to vary with an amplitude of about 20 km in semi-major axis on a timescale of about 2 Earth years. The close proximity to the orbits of Pallene and Methone suggests that these moons may form a dynamical family.

Material blasted off Anthe by micrometeoroid impacts is thought to be the source of the Anthe Ring Arc, a faint partial ring about Saturn co-orbital with the moon first detected in June 2007.[6][7]

References

Notes
  1. ^ This name is too new to appear in dictionaries, but the OED has the analogous rhodanthe /roʊˈdænθiː/ from the same root.
Citations
  1. ^ a b Cassini Imaging Team.
  2. ^ a b c IAUC 8857.
  3. ^ [dead link]
  4. ^ [dead link]
  5. ^ Agle 2007.
  6. ^ Porco et al., 2008.
  7. ^ Hedman et al., 2009.
Sources
  • "Cassini Imaging Science Team". Cassini Imaging Central Laboratory for OPerationS. Archived from the original on 2011-05-20. Retrieved 2012-01-01.
  • Agle, D. C. (July 19, 2007). "Saturn Turns 60". Cassini Solstice Mission. JPL/NASA. Archived from the original on February 20, 2012. Retrieved 2012-01-01.
  • Green, Daniel W. E. (July 18, 2007). "S/ 2007 S 4". IAU Circular. 8857. Retrieved 2012-01-01.
  • Hedman, M. M.; Murray, C. D.; Cooper, N. J.; Tiscareno, M. S.; Beurle, K.; Evans, M. W.; Burns, J. A. (2008-11-25). "Three tenuous rings/arcs for three tiny moons". Icarus. 199 (2): 378–386. Bibcode:2009Icar..199..378H. doi:10.1016/j.icarus.2008.11.001. ISSN 0019-1035.
  • Porco C. C.; et al. (2008-09-05). "More Ring Arcs for Saturn". Cassini Imaging Central Laboratory for Operations. Archived from the original on 2008-10-10. Retrieved 2008-09-05.
Listen to this article (1 minute)
Spoken Wikipedia icon
This audio file was created from a revision of this article dated 16 January 2010 (2010-01-16), and does not reflect subsequent edits.
(Audio help · More spoken articles)

Media related to Anthe at Wikimedia Commons