| The Vesica Piscis represents the summer and winter solstices of this cycle. |
| Cassiopeia went through over 100 quarterly issues, named for the solstices and equinoxes, until it was replaced by an electronic version. |
| During the year 994 al-Khujandi used the very large instrument to observe a series of meridian transits of the sun near the solstices. |
| The earth also swings from left to right and right to left causing summer and winter solstices while the equinox is the principle of balance. |
| In addition to the solstices, which officially mark the first days of summer and winter, there are also two equinoxes. |
| It also has links to detailed information explaining sunrise, sunset, the solstices and equinoxes. |
