I would get sick of hearing my own voice!!!!!
Great idea though.
<b>Confusing example of recording:</b> "Now, up near that little star on the left of Spica, go down to the 3 faint stars then right to the 4 stars that look like a crooked square, then down a bit more, bit more, little bit more, STOP! Now just to the left next to those fuzzy little galaxies is the spiral galaxy and just to the left again over to the next 2 stars and down a bit. Bingo! There it is . . . . . . . Damn, I lost it!!!!