Astronomy:Bleriot (moonlet)

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Short description: Moonlet in Saturn's outermost ring
Bleriot
PIA21447 - Bleriot Propeller Close-up.jpg
Cassini image directed at Bleriot.
Discovery
Discovered byCassini Imaging Team
Discovery date2005
Orbital characteristics
Eccentricity≈ 0.000
Inclination≈ 0.0
Satellite ofSaturn
GroupA ring moonlet
Physical characteristics
Mean diameter1,500 metres (4,900 ft)
Rotation periodassumed synchronous


Bleriot (or Blériot), is the informal name for a propeller moonlet within Saturn's A Ring. The moon is about 1,500 metres (4,900 ft) across, making it the largest of these propeller moonlets. It has been tracked by the Cassini Imaging Team for the past decade.[1][2]

Bleriot has been subject to some scientific studies due to its large size and has helped scientists improve their understanding the interactions between objects within Saturn's rings.[3][4] The orbit of Bleriot has some anomalies such as that it sometimes is much further behind or ahead than is predicted to be.[3][5]

The name comes from French aviator Louis Blériot, who was the first person to fly across the English Channel.[2][3]

Due to its small size, Bleriot cannot be directly imaged, it can only be noticed by the "propeller-shaped" disturbances it creates around it.[6]

See also

References

  1. "My God. It's full of propellers." (in en-US). 2017-05-10. https://www.syfy.com/syfy-wire/my-god-its-full-propellers. 
  2. 2.0 2.1 "Catalog Page for PIA21447". https://photojournal.jpl.nasa.gov/catalog/PIA21447. 
  3. 3.0 3.1 3.2 "NASA Cassini Images: Tiny Moons In Saturn's Rings" (in en-US). 2017-05-11. https://www.ibtimes.com/nasa-cassini-images-tiny-moons-saturns-rings-create-propeller-shapes-2537723. 
  4. "Catalog Page for PIA12792". https://photojournal.jpl.nasa.gov/catalog/PIA12792. 
  5. Beatty, J. Keally (2010-07-16). "Strange Twists in Saturn's Rings". https://skyandtelescope.org/astronomy-news/strange-twists-insaturnsrings/. 
  6. Seiß, Martin; Albers, Nicole; Sremčević, Miodrag; Schmidt, Jürgen; Salo, Heikki; Seiler, Michael; Hoffmann, Holger; Spahn, Frank (2018-12-12). "Hydrodynamic Simulations of Moonlet-induced Propellers in Saturn's Rings: Application to Blériot". The Astronomical Journal 157 (1): 6. doi:10.3847/1538-3881/aaed44. ISSN 1538-3881.