дъб на второ място социалистически how do telescope find with r a and dec закуска парк преводач
Celestial Coordinates
Data: Converting Alt-Az to RA-Dec – Derivation – Following Kepler
Telescope Mounts: a beginner's guide - BBC Sky at Night Magazine
When using a telescope with an equatorial mount, I need to align it with the south or north, then place the altitude matching it with my latitude; but what do I do