Dysnomia (muin)

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Eris and dysnomia2.jpg
Dysnomia, tae the left, an Eris, center
(Hubble Space Telescope)
Discovered biMichael E. Brown, M. A. van Dam, A. H. Bouchez, D. Le Mignant, R. D. Campbell, J. C. Y. Chin, A. Conrad, S. K. Hartman, E. M. Johansson, R. E. Lafon, D. L. Rabinowitz, P. J. Stomski Jr., D. M. Summers, C. A. Trujillo, and P. L. Wizinowich[1]
Discovery dateSeptember 10, 2005[1]
MPC designation(136199) Eris I Dysnomia
Pronunciation/dɪsˈnmiə/ or /dsˈnmiə/[lower-alpha 1]
S/2005 (2003 UB313) 1
Orbital chairactereestics [2]
37350±140 km
Eccentricity< 0.013
15.774±0.002 d
Satellite oEris
Pheesical chairacteristics
Equatorial radius
342±25 km (albedo five times lawer than Eris's)[3]
175–245 km[4]
50–125 km[lower-alpha 2][5]
~3.2[lower-alpha 3][4][6]

Dysnomia, offeecially (136199) Eris I Dysnomia (Greek: Δυσνομία), is the anly kent muin o the dwarf planet Eris (the maist massive kent dwarf planet in the Solar Seestem).

Notes[eedit | eedit soorce]

  1. dis-NOH-mee-ə or dys-NOH-mee-ə. The first is the normal meethological pronunciation, the latter is uised bi Brown.
  2. Accordin tae Michael E. Brown, it is 500 times fainter.
  3. Dysnomia wis foond 4.43±0.05 mag fainter than Eris. Wi H = −1.19 for Eris, this gies H ≈ 3.2 for Dysnomia.

References[eedit | eedit soorce]

  1. 1.0 1.1 Brown, M. E. (2006). "Satellites of the Largest Kuiper Belt Objects" (PDF). Astrophysical Journal Letters. 639 (1): L43. arXiv:astro-ph/0510029. Bibcode:2006ApJ...639L..43B. doi:10.1086/501524. Retrieved 2011-10-19. Unknown parameter |coauthors= ignored (|author= suggested) (help)CS1 maint: ref=harv (link)
  2. Brown, M. E.; Schaller, E. L. (2007). "The Mass of Dwarf Planet Eris". Science. 316 (5831): 1585. Bibcode:2007Sci...316.1585B. doi:10.1126/science.1139415. PMID 17569855.CS1 maint: ref=harv (link)
  3. Santos-Sanz, P.; et al. (2012). ""TNOs are Cool": A Survey of the Transneptunian Region IV. Size/albedo characterization of 15 scattered disk and detached objects observed with Herschel Space Observatory-PACS". arXiv:1202.1481 [astro-ph.EP]. 
  4. 4.0 4.1 Johnston, W. R. (30 December 2008). "(136199) Eris and Dysnomia". Johnston's Archive. Retrieved 2012-04-12.
  5. Brown, M. E. (14 June 2007). "Dysnomia, the moon of Eris". Caltech. Retrieved 2011-07-03.
  6. 6.0 6.1 Green, D. W. E. (4 October 2005). "S/2005 (2003 UB313) 1". IAU Circular. 8610. Retrieved 2012-01-12.