Caliban (moon)

Caliban
Discovery image of Caliban taken by the Hale Telescope in September 1997
Discovery[1]
Discovered by
Discovery siteHale Telescope at Palomar Obs.
Discovery date6 September 1997
Designations
Designation
Uranus XVI
Pronunciation/ˈkæləbæn/[2][3]
Named after
Caliban
S/1997 U 2
AdjectivesCalibanian /kæləˈbeɪniən/[4]
Orbital characteristics[5]
Epoch 27 June 2015 (JD 2457200.5)
Observation arc17.96 yr (6,559 d)
7,163,810 km (0.0478871 AU)
Eccentricity0.0771431
1.59 yr (579.26 d)
294.66253°
0° 37m 17.345s / day
Inclination139.90814° (to the ecliptic)
140.878° (to local Laplace plane)[6]
175.21248°
342.53671°
Satellite ofUranus
GroupCaliban group
Physical characteristics
42+20
−12 km[7]
Mass~2.5×1017 kg (estimate)[8]
Mean density
~1.3 g/cm3 (assumed)[8]
9.948±0.019 hr (double-peaked)[7]
2.66±0.04 hr (single-peaked)[9]
Albedo0.22+0.20
−0.12[7]
Temperature~65 K (mean estimate)
22.0 (V)[7]
9.160±0.016[7]
9.0[5]

Caliban /ˈkælɪbæn/ is the second-largest retrograde irregular satellite of Uranus.[10] It was discovered on 6 September 1997 by Brett J. Gladman, Philip D. Nicholson, Joseph A. Burns, and John J. Kavelaars using the 200-inch Hale Telescope together with Sycorax and given the temporary designation S/1997 U 1.[1]

Designated Uranus XVI, it was named after the monster character in William Shakespeare's play The Tempest.

  1. ^ a b Gladman Nicholson et al. 1998.
  2. ^ "Caliban". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ Benjamin Smith (1903) The Century Dictionary and Cyclopedia
  4. ^ Apple, Au, & Gandin (2009) The Routledge international handbook of critical education
  5. ^ a b Cite error: The named reference MPC95215 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference JPL-SSD-Uranus-Caliban was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference FarkasTakacs2017 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference JPL-SSD-sat_phys was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Maris 2001 was invoked but never defined (see the help page).
  10. ^ Sheppard, Jewitt & Kleyna 2005.