This was a term used for certain US Military rifles- the bores were checked using a special guage. Rifles that were found to have a high degree of uniformity to the rifling were marked at the muzzle with a star. Today, these might be known as "Match" quality.
In Super Mario Galaxy 1 you can get 121 power stars, but in Super Mario Galaxy 2 the star gauge can hold 240 stars.
Sorry to disappoint you, but a star-gauge is a machine shop device- it is a sort of punch with an asterisk design ( hence the name) if you had a star-gauge mark on a Springfield Rifle, it had met or exceeded certain accuracy tests and gunsmiths would note this. a star-gauged Springfield is a good one for use for hunting.
as many as it can
The star gauge on Mario Super Sluggers can hold a maximum of 5 stars.
999.
5.
5
it can hold to 30 stars
it can hold to 30 stars
400
http://www.jcwhitney.com/Fuel-Gauges/GP_2020520_N_111+1999+200732109+600014720_10111.jcw
orange - gauge 14gray - gauge 16green - gauge 18pink - gauge 20blue - gauge 22yellow - gauge 24