87 sylvia造句

• It is also the second known triple asteroid, after 87 Sylvia.
• The third-largest asteroid with an accurately measured mass, due to the fact that it has a moon, is 87 Sylvia at 14.78?.06 kg.
• Others are far more lopsided, like the case of 87 Sylvia, which at 176 miles across dwarfs its moon, just 5 percent as large.
• "' Romulus "'is the outer and larger moon of the main-belt asteroid 87 Sylvia, not to be confused with the directly Sun-orbiting asteroid 10386 Romulus.
• Some of the largest Cybele asteroids are 87 Sylvia, 65 Cybele ( the group's namesake ), 107 Camilla, 121 Hermione, 76 Freia, 790 Pretoria, and 566 Stereoskopia.
• Systems with a small satellite, or " moon ", include 22 Kalliope, 45 Eugenia, 87 Sylvia, 107 Camilla, 121 Hermione, 130 Elektra, 243 Ida, 283 Emma, and 379 Huenna.
• 87 Sylvia has a low density, which indicates that it is probably a rubble pile formed when debris from a collision between its parent body and another asteroid re-accreted gravitationally.
• 87 Sylvia has a low density, which indicates that it is probably a rubble pile asteroid formed when debris from a collision between its parent body and another asteroid re-accreted gravitationally.
• Thus, the first observed moon of 87 Sylvia, discovered in 2001, was at first designated S / 2001 ( 87 ) 1, later receiving its permanent designation of ( 87 ) Sylvia I Romulus.