The Emperor's Astronomy

B Affus, when he lived. Statement 1
Bianchini of Ferrara, original: "Blanchini ferrariensis" his time. Statement 1
The logic of the bissextile bissextile: refers to a leap year day. Statement 1
Boötes, what it is called, its nature, and where it shines in the sky. Statement 4
The War of Nicias, when it was waged in Sicily. Statement 1 and in the example of Statement 30
C Gaius Sulpicius Gallus, when he predicted an eclipse in the works of Livy. Statements 1 & 30.
The age of Claudius Ptolemy of Alexandria, Mathematician and philosopher. Statement 1
The Council held in Nicaea. Statement 1
The birth of Charles V, Emperor of the Romans. Statement 1
Christ, born on the 25th day of December. Statement 1
Christ, born in an intercalary intercalary: a leap year year. Statement 1
The position of the Northern Crown. Statement 4
The constellation of the Swan and its names. Statement 4
The Heart of the Lion, the star Regulus how it is named. Statement 4
The Whale, from which stars it is composed and how variously it is named. Statement 4
The stars of Cassiopeia. Statement 4
The Lesser Dog-star or the Greater Dog. Sirius Statement 4
The time of the Dog Days, when it occurs. Statement 4
The Lesser Dog or Procyon, what it is called by Pliny. Statement 4
The Cup, by which stars it is connected. Statement 4
The Raven, where it is seen in the sky. Statement 4
The Centaur, which stars it possesses. Statement 4
The Southern Crown, what it is. Statement 4
The place of the Head and Tail of the Dragon, Head and Tail of the Dragon: the lunar nodes, where the moon's path crosses the sun's how you may find them. Statement 18
Conjunction, what it is and from where it is named. Statement 19
A planet, when it is said to be "combust." combust: an astrological term for a planet being so close to the sun that its influence is hidden Statement 21
Great Conjunctions, how one might investigate them. Statement 32
The powers of Great Conjunctions. Statement 32
The triple names of Great Conjunctions. Statement 32
To know the hour of conception from the birth. Statement 33
The constellation of Cepheus and its names. Statement 4
How you may investigate the "Key" to the moveable feasts. Moveable feasts are church holidays like Easter that change dates annually Statement 35
The discovery of the Solar Cycle. Statement 37
Concurrent days, how they are known. Statement 37
The Solar Cycle, from where it is named. Statement 37
Where and when the first Council of the Christians was held. Statement 38
To find the critical days. Statement 40
Knowledge of the "Crisis," Crisis: a medical turning point in an illness, often calculated astrologically by whom it was described. Statement 40
The necessity of critical days. Statement 40
What a crisis is. Statement 40
The fourfold types of critical days. Statement 40
From where a crisis must be predicted. Statement 40
The hour of a crisis, how it must be sought. Statement 40
By what reasoning a crisis happens. Statement 40
How a crisis is known to be healthy or unhealthy. Statement 40
Crises, for what reasons they vary. Statement 40
What sort of sign of a crisis coincides with an eclipse. Statement 40
How a crisis is to be judged according to the planets. Statement 40
The motion of the third comet, how it was contrary to the order of the signs. In the second part.
The tails of comets, how it was known they are generated by the Sun. In the second part.
D The prophets Daniel and Ezekiel, when they lived. Statement 1
The dominion of Diocletian. Statement 1
The constellation of the Dragon and its naming. Statement 4
The position of the Dolphin. Statement 4
The equation of natural days. Statement 5
The inequality of natural days. Statement 5
Natural days become unequal from a twofold cause. In the same place.
Apparent and different days, what they are. In the same place.
The value of the equation of days in the calculation of motions. In the same place.
What the equation of days does in the "aspects." aspects: the angles between planets In the same place.
Darius, at what time he was defeated by Alexander, according to the testimony of Eusebius. Statement 29
Darius, when he was defeated by Alexander, according to Ptolemy and Alfonso. Statements 1 & 29.
E Euclid the geometer, at what time he lived. Statement 1
The Ecliptic, where its true place in the sky is to be established. Statement 2
Eridanus or the Po river, from which stars it is continued. Statement 4
An eclipse of the Moon and Sun, when it is possible to happen. Statement 22
An eclipse, once the day is known, how the hour and minute are found. Statement 24
To presage the color of an eclipse. H ii & H iii. Reference to signature marks in the book
How much Eusebius errs in recording the eclipse under which Darius was defeated by Alexander. Statement 29
The error of Eusebius regarding the end of the Macedonian empire. Statement 30
Eusebius, by how many years he varies in the history of Nicias, in the example. Statement 30
To reduce eclipses into whatever forms you please. Statement 31
F The birth of Ferdinand, King of the Romans, Hungary, and Bohemia. Statement 1
The star Fomalhaut, which one it is. Statement 4
A surviving fetus, why it is born neither before the 7th nor after the 10th month. Statement 33
The Parts of Fortune, how they are found. Statement 34
What the Part of Fortune is. Statement 34
The Part of Fortune and the lunar ascendant, why they are the same. Statement 34
G The age of Galen the Physician. Statement 1
The century of Guido Bonatti the astrologer. Statement 1
The death of Georg von Peuerbach the mathematician. Statement 1
How nations numbered their times. Statement 29
Homer

H Homer the poet, at what time he flourished. Statement 1
Hesiod, in what age he lived. Statement 1
Hippocrates of Cos, at what time he lived. Statement 1
Helicon of Cyzicus, the Astrologer, when he lived. Statement 1
Hipparchus, in which century he was famous. Statement 1
The reign of the Emperor Hadrian. Statement 1
The century of Haly Abenragel original: "Hali Habenragel" the Astrologer. Statement 1
The situation and naming of Hercules. Statement 4
The Hyades stars, where they are located and why they are so called. Statement 4
The Hydra, what constellation it has. Statement 4
The hour of the Moon's aspect with the planets, by what way one may learn it. Statement 20
How histories can be corrected through eclipses. Statement 29
The wondrous variation of historians in asserting the years of the world and of the founding of Rome. Statement 29
Hippocrates, why he established the fourth and twentieth critical days. Statement 20
I The age of Julius Firmicus Maternus. Statement 1
Johannes de Gmunden, mathematician, when he was famous. Statement 1
The miserable death of Johannes Regiomontanus the German. Statement 1
What is an "Intercalary." A leap day or month
The motion of Jupiter and its accidents, how they are known. Statement 8
Jupiter is hot and moist. Statement 8
Jupiter, called the "companion of life" by the ancients. Statement 8
The "Apogee" original: "aux" of Jupiter, how far it is from the belly of its Dragon. Statement 8
The place of Jupiter at the age of the founding of Rome. Statement 8
To investigate the cycle of the Roman Indiction. Indiction: a 15-year cycle used in ancient Roman and medieval dating Statement 36
The origin of the Roman Indiction. Statement 36
The dignity, use, and necessity of the Roman Indiction. Statement 36
Why a four-year intercalation is not sufficient to obtain the true quantity of the year. Statement 37
Knowledge of the "Interval." The time between Christmas and the start of Lent Statement 37
The necessity of intercalation. Statement 37
The error of the Jews in celebrating Passover. Statement 38
The superstition of the Jews in choosing the day of Passover. Statement 39
Knowledge of the Jewish Passover through tables. Statement 39
The Indicative day, which one it is. Statement 40
The Intercedent day, which one it is. Statement 40
The fire and the highest sphere of the air are not carried away by the Moon. In the observation of the third Comet.
L Lucius Aemilius Paullus, in what age he captured Perseus. Statements 1 & 30
The Lunar year.
The longitude of the stars before and after the time of Christ, how it is known. Statement 4
The arrangement of Lyra and its names. Statement 4
The Heart of the Lion, how it is named. Statement 4
The Hare, what kind of constellation it is. Statement 4
The Wolf, what kind of constellation it is. Statement 4
The latitude of Saturn, how it is known. Statement 7
The latitude of the fixed stars, in what manner it can be had. Statement 4
The latitude of Jupiter, how it can be had. Statement 9
The latitude of Jupiter at the time the city was built. Statement 9
The latitude of Mars, how you may find it. Statement 11
The latitude of Venus, how it is found. Statement 14
Three causes of the latitude of Venus. Statement 14
The latitude of Venus at the time the city was founded. Statement 14
The latitude of Mercury, how one may investigate it. Statement 16
The motion of the Moon at any time, how one may know it. Statement 17
The latitude of the Moon, how one may find it. Statement 18
The conjunction of the Moon with the Head or Tail of its dragon, how it has its means. Statement 23
Livy, at what time he lived. Statement 1
Livy recorded the eclipse of Sulpicius Gallus to have happened later than it occurred. Statement 30
How Livy is to be understood regarding the hour of his eclipse. Statement 30
The discovery of the Dominical Letter. Dominical Letter: a system used to find the day of the week for any given date Statement 37
M Moses, when he lived. Statement 1
Moses, when he died. Statement 1
Marinus of Tyre the geographer, in what age he existed. Statement 1
Mordecai, at what time he lived. Statement 1
Mileus the Astronomer, when he was famous. Statement 1
Muhammad, at what time he breathed out his heresy. Statement 1
The apogee original: "aux" of Mars, how far it is from the head or tail of its dragon. Statement 8
The course of Mars, how you may find it at any time. Statement 10
Mars is of a hot and dry temperature. Statement 10
Mars is not unlike yellow bile. Statement 10
Why Mars is called "Pyrois." Greek for "The Fiery One" Statement 10
What place Mars held at the times of the destruction of Troy. Statement 10
The latitude of Mars at the time of the fall of Troy. Statement 11
The motion of Mercury, in what manner it is to be found. Statement 15
Why Mercury is called "Stilbon." Greek for "The Gleaming One" Statement 15
Mercury is similar to Proteus. Statement 15
Mercury is "doubtful." original: "anceps," referring to its shifting nature Statement 15
The influence of Mercury is changeable, and why. Statement 15
The motion of Mercury at the time the city was founded. Statement 15
Mercury was falsely moved into Scorpio by Lucius Tarutius the mathematician at the age of the city’s construction. Statement 15
Why Mercury rarely appears. Statement 15
Mercury...