V1500 Cygni

[10] V1500 Cygni was discovered shining at an apparent brightness of magnitude 3.0 by Minoru Honda of Kurashiki, Japan on 29 August 1975.

It remained visible to the naked eye for about a week, and 680 days after reaching maximum the star had dimmed by 12.5 magnitudes.

[12] More recently the Gaia space observatory determined a distance of approximately 5,100 light years.

[13] However, by 2016, x-ray observations strongly suggested that the white dwarf rotation had returned to normal synchronization with the orbit.

[4] V1500 Cygni has a remnant typical of very fast novae, consisting of some clumps and some spherically symmetric diffuse material.

AAVSO light curve for Nova Cygni 1975. The dates given are Julian day numbers.
The location of V1500 Cygni (circled in red)