Calculating RA co-latitudes etc

[baggywrinkle]

Since coming back to astronomy I have been getting more interested in calculating things like co-latitudes etc.

Of particular interest is working out from my local meridian when a particular object will cross it based on it stated RA on the celestial sphere.

Can anyone give me some pointers to books that will help?

[Tiki]

When an object's RA is the same as the 'local sidereal time' it will be on the 'local meridian'. ie. The 'local hour angle' will be 0.

A quick search on 'celestial navigation' should be helpful. An almanac (online or otherwise) will have to be consulted so as to work out your 'local sidereal time'.