So far, the rank of Rear Admiral info is correct. You have a lower half, 1 star, and an upper half, 2 star.

The title Commodore is still used, but there is not a specific rank of Commodore.

A Commodore is usually a senior Captain that is in charge of a division of destroyers,subs,an Air Wing or other large groups of people who are seperate commands under one division commander. So although the person holds the rank of Captain ( 0-6 ) he is given the honorary title of Commodore.

In WW2 there were fears of a glut of admirals following the war so the rank of commodore was used ( 1 star, O-7). They quit using the rank Commodore in 1947 and by 1953 or so they had either all been promoted to Rear Admiral (2 stars)or retired.

In 1982, because the other services were whining about the Navy Rear admirals being paid for O-7 but wearing O-8 insignia the one stars again appeared, but this time they were officially Commodore Admirals, not senior Captains.

That got really confusing, we had Commodores by title who were in fact senior Captains (O-6) and Commodore Admirals who were O-7's (1 star).

So that lasted a couple of years and we lost the one star again, went back to Rear Admiral lower half and upper half and senior Captains in charge of divisions of destroyers, subs, airplanes, etc were called Commodore once again, although they wear the insignia of a Captain.

And all was right with the world and the Army, Air Force and Marine Corps 1 stars went back to crying in their wheaties.

bob