A TV Guide article made it sound like the name was inspired specifically by the constellation:
The Wonder Years alum and math guru gave birth to son Draco Verta on Tuesday, her rep tells TVGuide.com. Draco � who takes his moniker from the constellation of the same name � weighed in at 7 pounds, 2 ounces, and is the first child for McKellar, 35, and her husband, Mike Verta.
If that's the case, I wonder if there's anything about the constellation that's important/significant to Danica & her husband.