Depends on many things....the size of the room, how "heavy" the chandelier appears, how high off the table you are going to hang it.

In general, not too long...actually too short. The ideal is 2/3 the length of the table.

I would need to see the table and the light and IMO that is actually bigger than 2/3 but it really is only one part of choosing lighting so pics please.

So confused! One of you said too short, the other said it’s bigger than 2/3? Table is 63” long, so isn’t that 42? But that seems much too long to me if it’s rectangular. What if the chandelier was square or round, would that make a difference?

This link has information regarding length, width, height and shape, which all should be considered.

https://www.designmorsels.com/chandelier-size-guide/