Facts about Namaka
- 12
Namaka's rapid orbital decay suggests it will eventually spiral into Jupiter within approximately 100 million years due to tidal dissipation gradually removing orbital energy.
- 11
At roughly 94 kilometers across, Namaka is smaller than Earth's moon but massive enough to maintain a spheroidal shape despite its irregular orbit around Jupiter.
- 10
Namaka's extreme orbital eccentricity of 0.3086 makes it one of Jupiter's most irregularly orbiting moons, second only to Pasiphae among the Nami family satellites.
- 09
In 1938, observations confirmed that Namaka's spectrum shows strong absorption features characteristic of water ice, distinguishing its surface composition from darker irregular moons in Jupiter's satellite system.
- 08
Namaka's mass is approximately 0.3 percent of Earth's moon, making it one of Jupiter's smallest known satellites with a density suggesting a composition of rock and ice.
- 07
Namaka's gravitational interaction with its neighboring moon히ia creates a resonance pattern that influences both bodies' orbital evolution around Jupiter.
- 06
Tidal heating from Namaka's eccentric orbit likely maintains a subsurface ocean beneath its icy crust, similar to mechanisms observed on Europa and Enceladus.
- 05
Namaka belongs to the Nami family of irregular moons, a group of small Jovian satellites sharing similar orbital characteristics and likely originating from a common progenitor captured by Jupiter's gravity.
- 04
Namaka's surface likely consists of water ice mixed with darker materials, making it considerably less reflective than many of Jupiter's other icy moons.
- 03
Namaka's highly eccentric orbit causes its distance from Jupiter to vary by approximately 900,000 kilometers, creating extreme tidal forces that generate internal heat within the moon.
- 02
Namaka orbits Jupiter at an average distance of 3.55 million kilometers and completes one revolution every 7.5 Earth days.
- 01
With a diameter of just 169 kilometers, Namaka is Jupiter's eighth-largest moon and was discovered by Seth Barnes Nicholson in 1914.