Comet Borrelly–Daniel, formally designated as C/1909 L1, is a non-periodic comet that was co-discovered by astronomers, Alphonse Borrelly and Zaccheus Daniel. It was the seventh comet discovery by Borrelly and the third one for Daniel. About two weeks prior to discovery, the comet made its closest approach to Earth at a distance of on 30 May 1909.
Notes
References
External links