171P/Spahr is a periodic comet in the Solar System. 171P/Spahr was recovered on 20–24 October 2011 at apparent magnitude 20.6 using the Faulkes Telescope South. 171P/Spahr is peaked at about magnitude 18 in 2012.
171P/Spahr is a periodic comet in the Solar System. 171P/Spahr was recovered on 20–24 October 2011 at apparent magnitude 20.6 using the Faulkes Telescope South. 171P/Spahr is peaked at about magnitude 18 in 2012.
During the 1999 passage, the comet brightened to about magnitude 13.5.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).