another quick question:

I just started closing the curtains. Its darker in my room now. But the around the edges of the curtains some of the night sky can be seen coming in around the edges. This is light but is not from any light source...just the night sky. But it looks more concentrated coming in around the edges than the total blackness that now surrounds the plants....would I be better off leaving the curtains open to recieve the night sky or the closed curtains with the edges of night light coming in very faintly around the edges...?