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Belinda (moon)

Moon of Uranus

Field	Value
name	Belinda
image	Belinda.gif
image_alt	Image of Belinda acquired by Voyager 2
caption
discoverer	Stephen P. Synnott / Voyager 2
discovered	January 13, 1986
mpc_name	Uranus XIV
pronounced
adjective	Belindian
orbit_ref
semimajor	75 255.613 ± 0.057 km
eccentricity	0.00007 ± 0.000073
period	0.623527470 ± 0.000000017 d
inclination	0.03063 ± 0.028° (to Uranus's equator)
satellite_of	Uranus
dimensions	128 × 64 × 64 km
surface_area
volume
mass	(1.4–3.3) kg
density	0.5–1.2 g/cm
surface_grav	– m/s2}
escape_velocity	– km/s

Belinda is an inner satellite of the planet Uranus. Belinda was discovered from the images taken by Voyager 2 on 13 January 1986 and was given the temporary designation S/1986 U 5. It is named after the heroine of Alexander Pope's The Rape of the Lock. It is also designated Uranus XIV.

Belinda belongs to the Portia group of satellites, which also includes Bianca, Cressida, Desdemona, Portia, Juliet, Cupid, Rosalind, and Perdita. These satellites have similar orbits and photometric properties. Other than its orbit, size of 128 × 64 km, and geometric albedo of 0.08, little is known about it.

Voyager 2 images show Belinda as an elongated object with its major axis pointing towards Uranus. The moon is very elongated, with its short axis 0.5 ± 0.1 times the long axis. Its surface is grey in color.

Belinda is in a stable 44:43 mean-motion resonance with Perdita, and from this its mass has been determined to be roughly 26 or 27 times that of Perdita.

The inner moon system is unstable over timescales of several millions of years. Belinda and Cupid will probably be the first pair of moons to collide, in 100,000 to 10 million years' time depending on the densities of the Portia-group satellites, due to resonant interactions with the much smaller Cupid.

Notes

| Calculated on the basis of other parameters.

References

Citations

Sources

{{cite web | access-date = 2012-01-27
{{cite web | access-date = 2012-01-27 | archive-date = 2010-01-05 | archive-url = https://web.archive.org/web/20100105183741/http://nssdc.gsfc.nasa.gov/planetary/factsheet/uraniansatfact.html | url-status = dead
{{cite journal | access-date = 2012-01-27
{{cite web | access-date = 2012-01-27

References

Benjamin Smith. (1903). "The Century Dictionary and Cyclopedia".
French, Robert S.. (2017-10-01). "Orbital and Photometric Analysis of the Inner Uranian Satellites from Hubble Images".
(August 2012). "Cupid is doomed: An analysis of the stability of the inner uranian satellites". Icarus.

Info: Wikipedia Source

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