Despina
Neptune V - 1989N3
Despina, only 27,700 kilometers (17,200 miles) from
Neptune's clouds, orbits every 8 hours. Its diameter is about
150 kilometers (90 miles). It is irregularly
shaped and shows no sign of any geological modification. Despina circles
the planet in the same direction as Neptune rotates, and remains close to
Neptune's equatorial plane.
| Despina Statistics
|
|---|
|
|
|---|
| Discovered by | Voyager 2
|
|---|
| Date of discovery | 1989
|
|---|
|
|
|---|
| Mass (kg) | ?
|
|---|
| Equatorial radius (km) | 74
|
|---|
| Equatorial radius (Earth = 1) | 1.1602e-02
|
|---|
| Mean density (gm/cm^3) | ?
|
|---|
|
|
|---|
| Mean distance from Neptune (km) | 52,500
|
|---|
| Rotational period (days) | ?
|
|---|
| Orbital period (days) | 0.334655
|
|---|
| Mean orbital velocity (km/sec) | 11.41
|
|---|
|
|
|---|
| Orbital eccentricity | 0.0001
|
|---|
| Orbital inclination (degrees) | 0.07
|
|---|
|
|
|---|
| Visual geometric albedo | 0.06
|
|---|
| Magnitude (Vo) | 22.6
|
|---|
Neptune
Thalassa
Galatea
Copyright © 1997 by Calvin J. Hamilton.
All rights reserved.