[5] However D'Agelet observed this nova with a mural quadrant, which produced coordinates accurate enough to allow modern astronomers to identify the star.

At least a half dozen observers attempted to find D'Agelet's nova in the late 19th and early 20th centuries, without success.

Wilson, and in 1950 Harold Weaver tentatively identified a faint blue star with a photographic magnitude of 18.9 as the quiescent nova.

The star was only a few arc seconds away from D'Agelet's reported position, and fluctuations in its brightness added to the confidence that it was indeed the nova.

[12] Somers et al. estimate the donor star's spectral type to be between M3.5 and M4.5, and the mass of the white dwarf to lie between 0.5 M☉ and 1.1 M☉.