[quote=@Terminal]
<Snipped quote by Willy Vereb>

40,000 lightyears. Keep the speed limit in mind. In space volumetrics that would be 33,500,000,000,000 lightyears. I did not say that's how much you had scouted - merely that there was a potential 40,000 lightyear envelop of space that could be scouted in that time. Feel free to have scouted none of it by the time the RP starts.
[/quote]Yeah, that was a typo.
Anyways, that would sound overly idealistic and quite unbelievable.
Not just because it needs 4 weeks of nonstop travel to all directions and expect that somebody has enough ships and/or long enough sensor coverage to make it possible but because as I said it'd be quite unwise to make FTL speeds right at the limits which your NRP allows.
Good rule of thumb could be around the fraction of this.
Or just leave it vague when there's no particular significance to it.

As others said this game would eliminate many of the issues with space NRPs which is space itself. It's huge and our empires would be most likely just tiny dots in the galaxy.
Still, another reason why 40 kly radius of explored area is problematic because I suppose most of us wish the first contact situations to play out during the IC.
Of course I'm not complaining to you. Partially I didn't even write this for you but to inform the other players and avoid future issues.