ترینکولو (قمر)

Key facts

Discovered by

Matthew J. Holman John J. Kavelaars Dan Milisavljevic

Discovery site

Cerro Tololo Obs.

Discovery date

13 August 2001

Designation

Uranus XXI

Pronunciation

/ ˈ t r ɪ ŋ k j ʊ l oʊ /

Named after

Trinculo ( The Tempest character)

Alternative names

S/2001 U 1

Satellite of

Uranus

Proper semi major axis

8,502,600 km (0.056836 AU )

Proper inclination

167.1° (to ecliptic )

Proper orbital period

2.05 years (749 d)

Precession of perihelion long

500.579374 arcsec / yr

Precession of asc node

303.868699 arcsec / yr

Mean diameter

12–19 km , 18 km

Albedo

>0.03

Spectral type

B–V = 1.09 ± 0.40 V–R = 0.35 ± 0.19

Apparent magnitude

25.4 (average)

Absolute magnitude h

12.7 , 11.92 ± 0.18

via Wikipedia infobox