40th star

Finished the game/bonus game twice now, but did not get the last star for the sky map. Counted the stars pictured in the SG; there's only 39 there as well! Is it in a really mysterious place, like inside a HOP or the secret room? Would really like to get the last achievement.

There's supposed to be one on the platform where you put the three triangles in the tower, but I can't see it!

Well, how embarrassing! Recounted stars in SG and there are 40 stars shown there! Must have been tired or distracted before. So.......never mind.

can not find the star that supposed to be on the platform where you put the three triangles in the tower, can anyone help please, and whats with the cursor going to slow

I too missed the 40th star - does anything extra-special happen upon gathering that last star? Or is it just the satisfaction of the achievement and finishing the star map? (Just wondering if it's worth the trouble of playing the game over again simply for that.) Thanks!