Copérnico The Club is on Calle Fernández de los Ríos, 67, in Gaztambide. It is often mentioned alongside Moncloa nightlife because it belongs to the same broader student-going-out area, but its address places it in Chamberí. The venue has a nightclub format and runs different sessions rather than offering one identical party every night.
For a group of students or friends who want a lively club, Copérnico is worth considering once the evening's programme has been checked. Look at the event's age policy and ticket conditions as well as the genre. Booking a table can make sense for a group, but the category, capacity and minimum spend must relate to the actual date.
Chamberí covers several neighbourhoods, so a district name is an imprecise way to plan an evening. An address near Alonso Martínez and a club in Gaztambide can both be described as Chamberí without being convenient for the same dinner booking. If you are meeting friends arriving from different areas, look at the nearest metro stop, the actual venue entrance and the journey home. It often makes more sense to choose the event first and then find somewhere nearby to eat or meet. This avoids the common assumption that every club in a neighbourhood guide can be reached on foot in a few minutes.