hello iam new to this forum and i have some questions about astronomic navigation

1. to calculate the ra value for a specific target i need the actual sidereal time and the objects specific ra value, right?
but where do you get the actual LST time, when you are outside at your telescope?

actually i am trying to build an excel sheet that calculates me the value, that i have to set up in my telescope. > the excel sheet i would use in an pocket pc.

-> if someone of you has already such an file please sent it to me! because i have some problems with the LS Time...


the formula is: value for the ra axis = RA(object) - LS Time.. right?


thanks for your help

sorry for my english, this topic + english = difficult , but i couldnt find a usable german forum..