Two months are represented on each page, and opposite the number of each successive day of the month the position of the planet is given in hours, minutes, and seconds of right ascension, and degrees, minutes, and seconds of north and south declination, the sign + meaning north, and the sign - south.
Do not trouble yourself with the seconds in either column, and take the minutes only when the number is large.

The hours of right ascension and the degrees of declination are the main things to be noticed.
Right ascension, by the way, expresses the distance of a celestial body, such as a star or a planet, east of the vernal equinox, or the first point of Aries, which is an arbitrary point on the equator of the heavens, which serves, like the meridian of Greenwich on the earth, as a starting-place for reckoning longitude.

The entire circuit of the heavens along the equator is divided into twenty-four hours of right ascension, each hour covering 15 deg.

of space.

If a planet then is in right ascension (usually printed for short R.A.) 0 h.