
NGC 4559 is a rewarding deep-sky target and presents itself as a diffuse object. It is quite faint.
Right now it is at about 47° altitude and reaches 62° around 12:19 AM.
It stays above 30° for roughly 7 hours.
Galaxies are sensitive to light pollution, fine detail requires darker skies.
It requires patience and good conditions.
With larger apertures, more structure becomes visible.