Name a type of astronomical object found in space (like an asteroid)
Name a category of astronomical object, rather than the name of one particular object.
Show hints
Think about stellar remnants or natural satellites, as well as planets.
Need a stronger hint?
A compact core can remain after a red giant phase or a supernova. A different option helps keep a planetary ring in shape.
Show the final hint
For the ring-related option, think of a small Saturnian satellite named for its role in keeping ring material in line.
Choose from 3 answers
Reveal one option at a time. Points are recorded game scores, not player popularity.
Reveal option 1100 pts
Shepherd moon
krillion
A shepherd moon helps confine material at the edge of a planetary ring. NASA identifies Prometheus, which constrains the inner edge of Saturn’s F Ring, as an example.
Official answer record
Reveal option 260 pts
White dwarf
rare
A white dwarf is the compact stellar core remaining after a red giant sheds its outer layers.
Official answer record
Reveal option 360 pts
Neutron star
rare
A neutron star is the extremely dense remnant core left when a massive star collapses and explodes as a supernova.
Official answer record