The Emperor's Astronomy

The distance of Mercury from the Sun, Statement 15
Mercury has a triple cause for its latitude, Statement 16
In which latitude the epicycle epicycle: a small circle whose center moves around the circumference of a larger one, used to explain planetary orbits of Mercury is located, Statement 16
The latitude of Mercury in the century of the city’s referring to Rome founding, Statement 16
How the average duration of a lunar eclipse is found, Statement 28
The fear of Nicias upon seeing an eclipse, in the example of Statement 30
A comparison of Greek and Latin months, in the example of Statement 30
How to find the duration of an infant in the womb gestation period, Statement 33
The triple duration of an infant in the womb, Statement 33
What the common method for inquiring into this duration is, Statement 33
A method for investigating the duration different from the common one, Statement 33
What a Meteoroscope meteoroscope: an instrument used for observing or calculating the positions of stars or atmospheric phenomena is, Statement 1 of the second part

N
The century in which Noah’s flood occurred, Statement 1
When the reign of Nebuchadnezzar began, Statement 1
Of which stars the Southern Fish original: "Notius piscis" consists, Statement 4
The example of Nicias, the Athenian general, Statement 30
What the horoscope of birth is according to Ptolemy and Hermes referring to Hermes Trismegistus, Statement 33

O
The composition of the most famous constellation, Orion, Statement 4
What opposition opposition: when two celestial bodies are on opposite sides of the sky as seen from Earth is and from where it is named, Statement 19
What an "oppressed" planet is, Statement 21
What an "obsessed" in an astrological sense, meaning besieged or hemmed in by malefic planets planet is, Statement 21

P
When Plato the philosopher lived, Statement 1
The death of Philip, father of Alexander, Statement 1
When Proclus the astrologer flourished, Statement 1
The death of Pliny the Elder original: "Plinii secundi", Statement 1
The era of Ptolemy, the Alexandrian mathematician, Statement 1
The constellation of Perseus, Statement 4
What the stars of Pegasus are and how they are named, Statement 4
Stars inclining toward the pole complete their rising before their setting, Statement 4
From where the Pleiades are named and how many they are in number, Statement 4
What the star Praesepe the "Manger" or Beehive Cluster is, Statement 4
The star Protrygetes, or the "Vintager," original: "anteuindemiator," the star Vindemiatrix occupies the right wing of the Virgin, Statement 4
Of which stars the Southern Fish consists, Statement 4
How ecliptic points are found by means of an instrument, Statement 28
When Perseus reigned according to Eusebius, and when he was defeated by Lucius Paulus, the Roman consul, Statement 30
Which eclipse signifies the captivity of Perseus, Statement 30
The translator of Plutarch is accused of an unfair translation, in the example of Statement 30
The opinion of Ptolemy on finding the horoscope of one's birth, Statement 33
What the "Lot of Fortune" Lot of Fortune: a mathematical point in a natal chart based on the positions of the Sun, Moon, and Ascendant is, Statement 34
Why the Lot of Fortune and the Moon’s ascending point are the same, Statement 34
How all locations for all parts are chosen, Statement 34
How Easter original: "Pascha" and the rest of the movable feasts may be kept according to their cycle, Statement 38
How Easter was originally observed in the first month, Statement 38
Easter used to be celebrated on the fourteenth day of the first month according to Moses, Statement 38
The difference in observing Easter between the early church and the subsequent church, Statement 38
When Easter ought to be celebrated, Statement 38
Easter is to be celebrated in Aries, Statement 38
Why the Jewish Passover errs, Statement 38
How Easter varies by reason of the meridians referring to geographical longitude, Statement 38
Which humors humors: the four bodily fluids—blood, phlegm, yellow bile, and black bile—thought to control health and temperament the planets imitate, Statement 40
The exaltation and fall of the planets, Statement 40
Which diseases the planets regard, Statement 40
The "passions" the conditions or afflictions of the planets, Statement 40

Q
How many years from Adam to Christ, according to Alfonso, Eusebius, Albumasar, and the Hebrews, Statement 1
What the stars of Pegasus are and how they are named, Statement 4
On which day it is possible for some aspect to occur, Statement 19
What a quartile aspect quartile: a 90-degree angle between planets is, Statement 19
How one devoted to astronomy should sit in their study, Statement 19
How a seat should be established for one about to work on Cosmography, Statement 19
Why the Cosmographer and the Astronomer differ in their way of sitting, Statement 19
Why the Theologian and the Poet look at different things in different ways, Statement 19
How the daily motion of a planet is found, Statement 20
How a lunar eclipse should be drawn on a plane, so that the obscured parts of the Moon may be known, Statement 27
What is needed to predict eclipses, Statement 27
What is to be understood by ecliptic points, Statement 27
Why the intercalation of the Leap Day original: "Bis sexti" occurs at the Kalends of February, Statement 37
Which limbs are protected by the signs and by the houses, Statement 40
How many ways to enter the Meteoroscope, Statement 1 of the second part
How Pliny is to be understood when speaking of the setting of a Comet, Chapter 16 of the second part
What is to be understood by Plutarch’s month "Metagitnion," in the example of Statement 30

R
When Rome was founded, Statement 1
All "roots" roots: base values used for calculations are taken from the end of the year, not from the 24th day of December, Statement 1
How Dionysius the Abbot founded the Roman Calendar; and how Easter varies by reason of the meridians, Statement 38

S
Sosigenes the Astronomer, when he adapted the year to the course of the Sun, Statement 1
Strabo the Geographer, when he lived, Statement 1
When the Sun holds the beginning of the true ecliptic, the equinox occurs for the whole world, Statement 2
The Serpent-Bearer the constellation Ophiuchus

Where the Serpent-Bearer is in the sky, Statement 4
Northern stars rise with the Sun before they set, Statement 4
The further stars are from the ecliptic, the earlier they set with the Sun and the later they rise, Statement 4
The total number and naming of the northern stars, Statement 4
How the motion of Saturn is found, Statement 6
How to find the passions and accidents of Saturn, Statement 6
Saturn, understood by its color and effect, is cold and dry, Statement 6
The latitude of Saturn from the ecliptic, Statement 7
How far the apogee original: "aux" of Saturn is from the "belly of its dragon" a term for the nodes of the orbit, Statement 7
How the position of the Sun is found at any time, Statement 12
What the position of the Sun was at the death of Alexander, King of the Macedonians, Statement 12
What a sextile aspect sextile: a 60-degree angle between planets is, Statement 19
When planets are said to be "separated," Statement 21
How one may quickly know the average distances of the conjunction, opposition, and square of the Sun and Moon, Statement 22
How eclipses of the Sun can be viewed harmlessly by the eyes, at the end of Statement 30
Why the Sun and Moon were believed to be the parents of nature, Statement 34
The discovery of the Solar cycle, Statement 37
How many days the Solar year consists of according to Julius Caesar, Statement 38
The twelve signs are threefold referring to the quadruplicities or triplicities of the zodiac, Statement 40

T
When Troy was captured, Statement 1
When Timochars the astronomer flourished, Statement 1
Theon and Pappus, the mathematicians, Statement 1
When the origin of the Turks began, Statement 1
The movement of trepidation trepidation: a now-discredited theory that the precession of the equinoxes oscillates is completed in a space of 7,000 years, Statement 2
How the movement of trepidation occurs, Statement 2
To adapt the time chosen for calculation to any meridian, Statement 3
In which region of the sky the constellation of the Arrow original: "Telum" or Sagitta is located, Statement 4
How the time of the falling shadow in a lunar eclipse is known, Statement 28
What the constellation of the Triangle is, Statement 4
The arrangement of the Censer constellation original: "Thuribuli," referring to Ara, Statement 4
What a trine aspect trine: a 120-degree angle between planets is and from where it is named, Statement 19
How the sides of triangles are named, Statement 1 of the second part
The explanation of spherical triangles that are not right-angled, same place
The resolution of non-right-angled triangles into two right-angled ones, same place
The geometric demonstration of all spherical triangles, both right-angled and non-right-angled—that is, of the entire "First Mover" First Mover: the Primum Mobile, the outermost sphere in the geocentric model, same place
How the construction of a Torquetum Torquetum: a complex medieval astronomical instrument used to measure coordinates in various systems is done, at the end of the work
What the advantages of the Torquetum are, same place

V
The age of Vitruvius the architect, Statement 1
The time of Witelo original: "Vitellionis" the mathematician, Statement 1
The composition and naming of the Lesser Bear Ursa Minor, Statement 4
The names and number of stars of the Greater Bear Ursa Major, Statement 4
From where the "Vergiliae" another name for the Pleiades are named and how many they are in number, Statement 4
How the position of Venus is found, Statement 13
The naming of Venus, Statement 13
How the apogee of Venus agrees with the Sun, Statement 13
The position of Venus at the time the city Rome was drawn founded, Statement 13
What the motion of Venus shares with the Sun, Statement 13
The maximum distance of Venus from the Sun, Statement 13
Venus was incorrectly placed in Scorpio by Tarutius at the time the city was founded, Statement 13
In what latitude the epicycle of Venus is, Statement 16
When a planet is called "void," Statement 21
How the times of true conjunction, opposition, and square of the luminaries the Sun and Moon are to be investigated, Statement 26
"To see Alcor," a proverb a reference to a faint star in the Big Dipper used as a vision test, Statement 4
The two stars "Yed" Yed Prior and Yed Posterior occupying the left hand of the Serpent-Bearer, Statement 4
How many and how great the stars of the zodiacal signs are, and what their rising and setting are, Statement 4