6. The sixth is meridianal setting; when the star is found on the occidental horizon, while the Sun is on the meridian. Of this, one species is diurnal and invisible; when the star sets while the Sun is above the earth on the meridian: the other is nocturnal and visible; when the star sets while the Sun is on the meridian below the earth. 7. The seventh aspect is called vespertine subsolar; when the star is found on the oriental horizon, while the Sun is posited on the occidental horizon. One form of this aspect is the vespertine succedent rising, visible; when the star rises immediately after sunset: another is the precise vespertine co-rising; when the star rises and the Sun sets at one and the same time: another is the precedent, vespertine rising, invisible; when the star rises immediately before the Sun sets. 8. The eighth is named vespertine location in the mid-heaven; when the star is on the meridian, either above or below the earth, while the Sun is placed on the occidental horizon. Of this aspect, one kind is called a visible vespertine location in the mid-heaven; when the star is found there immediately after sunset: another is the precise vespertine location in the mid-heaven; when the star is found there at the moment of sunset; another is the vespertine precedent location in the mid-heaven, invisible; when the star arrives there immediately before sunset. 9. The ninth aspect is called vespertine setting; when the star, together with the Sun, is on the occidental horizon. One form of this aspect is the vespertine, succedent and visible setting; when the star, at the commencement of its occultation, sets immediately after the Sun: another is the precise vespertine setting; when the star sets at the same moment with the Sun: another is the precedent, invisible setting; when the star, before it emerges from its occultation, sets before the Sun. NO. II ALMAGEST; BOOK II. EXTRACT FROM CHAP. IX _Of Circumstances regulated by Ascensions_ In any climate whatever, the magnitude of a given day or night is to be computed by the number of ascensional times proper to that particular climate. For example, the magnitude of the day will be ascertained by numbering the times between the Sun’s zodiacal degree and the degree diametrically opposite, in the succession of the signs; and that of the night, by numbering the times, from the degree diametrically opposite to the Sun, onwards, in the order of the signs, to be the degree actually occupied by the Sun: because, by dividing the respective amounts of these times so obtained, by fifteen, the number of equatorial hours belonging to each space will be exhibited; and if the division be made by twelve, instead of fifteen, the result will show the numbers of degrees equivalent to one temporal hour of either of the said spaces respectively.[286]