World Library  
Flag as Inappropriate
Email this Article

Ymir (moon)

Article Id: WHEBN0000589876
Reproduction Date:

Title: Ymir (moon)  
Author: World Heritage Encyclopedia
Language: English
Subject: Moons of Saturn, Saturn's Norse group of satellites, Natural satellite, Ymir (disambiguation), Narvi (moon)
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Ymir (moon)

Ymir
Discovery[1]
Discovered by Brett J. Gladman
Discovery site Observatoire de la Cote d'Azur
Discovery date 2000
Designations
S/2000 S1, Saturn XIX
Adjectives Ymirian
Orbital characteristics[2]
23,040,000 km
Eccentricity 0.3349
3.6 yr (1315.14 d)
244.521°
Inclination 173.125°
194.086°
22.668°
Satellite of Saturn
Physical characteristics
Dimensions 18 km[3]
Mass 5.1×1015 kg[4]
8.7 m/s (31 km/h)[4]
11 h 55 m 20 s[5]
Albedo 0.06[6]
21.7[3]

Ymir ( ), or Saturn XIX, is a retrograde irregular moon of Saturn. It was discovered by Brett J. Gladman, et al. in 2000, and given the temporary designation S/2000 S 1. It was named in August 2003, from Norse mythology, where Ymir is the ancestor of all the Jotuns or frost giants.[7]

Of the moons that take more than 3 Earth years to orbit Saturn, Ymir is the largest, at about 18 kilometres (11 miles) in diameter.[3] It takes 3.6 Earth years to complete an orbit around Saturn. During this time, hypothetical Ymir visitors would experience ~2650 sunsets.

References

  1. ^ Brian G. Marsden (2000-10-25). "IAUC 7512". IAU. Retrieved 2011-01-08. 
  2. ^ Jacobson, R.A. (2007) SAT270, SAT271 (2007-06-28). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. Retrieved 2008-02-14. 
  3. ^ a b c  
  4. ^ a b assume radius of 9 km; volume of a sphere * assume density of 1.7g/cm³ (though it could be a loose rubble pile) yields a mass of 5.1e15 kg and an escape velocity of 8.7 m/s (31 km/h)
  5. ^ Denk, T., Mottola, S. (2013): Irregular Saturnian Moon Lightcurves from Cassini-ISS Observations: Update. Abstract 406.08, DPS conference 2013, Denver (Colorado)
  6. ^ Nicholson, P. D. 2001
  7. ^ Daniel W. E. Green (2003-08-08). "IAUC 8177: Sats OF (22); Sats OF JUPITER, SATURN, URANUS". IAU. Retrieved 2011-01-08. 

External links

  • MPEC 2000-Y15: S/2000 S 1, S/2000 S 2, S/2000 S 7, S/2000 S 8, S/2000 S 9 (2000 Dec. 19 ephemeris)
  • Ephemeris IAU-NSES
  • Saturn's Known Satellites (by Scott S. Sheppard)
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.