Type initial epoch (epoch1), final epoch (epoch2) and needed coodinates (equatorial a1, d1 for epoch1, ecliptic l1, b1 for epoch1 or galactic l,b) and press corresponding "SUBMIT" (if EPOCH2=EPOCH1, EPOCH2=EPOCH1+10). Press "CLEAR" before the next calculation.
Sign "-" for the d and b in form (o ' ", first line) insert in the special field before the field of o. Sign can also be inserted into the field for o, but in case of -1o < d < 0o in this field will be "0" and sign will be lost.
Ecliptic coordinates calculations is based on the current equator/ecliptic inclination angles ("E/El obl") with nutation calculation.
Galactic coordinates calculate with transition parametrs: North Galactic Pole equatrial coordinates (1950) aN = 192o.25, dN = 27o.4, Galactic longitude of ascess node on equator l0 = 33o.0.