https://www.cnet.com/news/american-total-solar-eclipse-2017-comet-telescope-sungrazer/

When the sun disappears during a total solar eclipse across the United States on Aug. 21, the stars and a few planets should become visible for a moment. But that may not be all you'll be able to see during the odd period of daytime darkness.

There's a slim chance you could spot a so-called "sungrazer" comet next to the darkened disc of our star during the eclipse.