Pholus


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Pholus

(foh -lŭs) A large interplanetary object, some 200 km in diameter, that moves in a highly elliptical orbit (9–32 AU) between the orbits of Saturn and Neptune. It was discovered in 1991. It may be similar to the object Chiron.
References in periodicals archive ?
The stories of Pholus associate him with Theseus and Hercules, and Nessus is also linked to Hercules.
Identities, as with Pholus the centaur, are undecidable.
Thus, any organic matter on its surface has been thoroughly processed well beyond the intermediate products that appear to comprise the surface layers of Pholus and the icy planetesimals 1992 Q|B.
The asteroid, which has received the permanent name 5145 Pholus, is actually 3 1/2 times (1.
The strength of their argument lies in the laboratory spectra of organic residues, often called tholins, which show steep red slopes closely resembling that of Pholus.
Since the orbit of Pholus extends beyond that of Neptune, the minor planet could have once had a thin layer of methane frost that has now been converted to more complex organic material in the harsh space environment.
In early 1991 a group at the University of Arizona found a second Chiron-like object, 5145 Pholus, which travels between 8.
How then can the existence of objects like Chiron and Pholus be explained?
Now contrast that with the discovery of Chiron in 1977, followed by Pholus in 1991, and 1992 Q[B.