Cuesta College, San Luis Obispo, CA
Refer below to the minimal qualifications established by the International Astronomical Union for a planet:
I. Orbits the sun.Caduceus[*] is purported to be an irregularly shaped body in orbit around Mercury. If Caduceus was relocated to inside of Mercury's orbit around the sun, it would be:
II. Shape "rounded-out" by gravity.
III. Cleared/dominates orbit around sun.
(A) a moon.
(B) solar system debris.
(C) a dwarf planet.
(D) a planet.
(E) (None of the above choices.)
Correct answer: (B)
Since Caduceus would be now relocated to directly orbit the sun (qualification I), but is still not rounded in shape (qualification II), this categorizes it as solar system debris.
Exam code: quiz07n4rS
(A) : 3 students
(B) : 20 students
(C) : 5 students
(D) : 1 student
(E) : 1 student
"Success level": 69% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.56