Artist's impression of the triple asteroid system, 87 Sylvia

Artist rendering of the triple system : Romulus, Sylvia, and Remus. This is the first triple asteroid system discovered - two small asteroids orbiting a larger one known since 1866 as 87 Sylvia. Because 87 Sylvia was named after Rhea Sylvia, the mythical mother of the founders of Rome, the twin moons are named after those founders : Romulus and Remus. Sylvia's moons are considerably smaller, orbiting in nearly circular orbits and in the same plane and direction. The closest and newly discovered moonlet, orbiting about 710 km from Sylvia, is Remus, a body only 7 km across and circling Sylvia every 33 hours. The second, Romulus, orbits at about 1,360 km in 87.6 hours and measures about 18 km across. The asteroid 87 Sylvia is one of the largest known from the asteroid main belt, and is located about 3.5 times further away from the Sun than the Earth, between the orbits of Mars and Jupiter. The wealth of details provided by the NACO images show that 87 Sylvia is shaped like a lumpy potato, measuring 380 x 260 x 230 km. It is spinning at a rapid rate, once every 5 hours and 11 minutes.

Źródło:

ESO

O zdjęciu

Identyfikator:eso0526b
Typ:Wizja artysty
Data publikacji:11 sierpnia 2005
Powiązane komunikaty:eso0526
Rozmiar:4000 x 3000 px

O obiekcie

Nazwa:Sylvia
Typ:Solar System : Interplanetary Body : Asteroid
Kategoria:Illustrations
Solar System

Formaty zdjęć

Pełen rozmiar
34,4 MB
Wielki JPEG
697,1 KB
JPEG do druku
1,2 MB

Powiększenie


Tapety

1024x768
98,8 KB
1280x1024
137,8 KB
1600x1200
183,9 KB
1920x1200
208,7 KB
2048x1536
258,1 KB

 

Zobacz też