This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

A decorative initial 'C' contains floral motifs.
¶ The names and characters of the signs of the Zodiac are these:
| Aries | ♈ | Taurus | ♉ | Gemini | ♊ |
| Leo | ♌ | Virgo | ♍ | Libra | ♎ |
| Sagittarius | ♐ | Capricorn | ♑ | Aquarius | ♒ |
Characters of the seven planets.
♄ SATURN ♃ JUPITER ♂ MARS
☉ SUN ♀ VENUS ☿ MERCURY ☾ MOON
The Colures are two circles in the sphere: one passes through the beginnings of Aries and Libra, while the other passes through the beginnings of Cancer and Capricorn, and they intersect at right angles around the poles of the world.
The Circle of Cancer, which is also called the Solstitial, is that which is distant from the equinoctial toward the North by 23 degrees and 30 minutes. When the sun retreats into it, it performs its summer turnaround, and the longest day of the year and the shortest night emerge. It is called by the Greeks the Tropic, because it is like a turning point. What is the circle of Cancer Tropic,
The Circle of Capricorn, which is also called the Brumal [Winter], is that which is lastly described by the Sun toward the South: in which the Sun makes its winter turnaround, and makes the day shortest and the night longest. Circle of Capricorn.
The Arctic Circle is that which is distant from the pole of the world on every side by 23 degrees, 30 minutes, and is described from the foot of the lesser Bear. Arctic circle.
The Antarctic Circle is that which is described from the Antarctic pole of the zodiac, and is equal and equidistant to the Arctic circle, entirely submerged below the earth to us. Antarctic circle.
The material figure of the circles of the sphere follows.