Peters on comet of 1585, 161; accuracy of T.'s observations, 357.
Peucer, professor at Wittenberg, 21, 23, 57, 58, 182, 370.
Picard, expedition to Hveen, 358, 374, 377.
Pinnules, improved, 331.
Planets, observations of, 227, 259, 345; theory by T., 180, 345.
Pliny, new star mentioned by, 42, 47.
Poetical effusions, 46, 55, 56, 115, 254.
Pontanus, assistant to T., 384.
Portraits belonging to T., 100, 106; of Danish kings, 143; of Tycho, 101, 228, 263.
Prætorius on new star, 61, 84.
Prague, description, 281; T. settles finally at, 298.
Pratensis, friend of T., 14, 42, 44, 46, 73, 85, 87.
Precession, 354.
Printing-press, 115, 163, 260, 272.
Progymnasmata, 186, 269, 272, 288, 307, 368.
Prostaphæresis, 361.
Prutenic tables, 8, 18, 19, 30, 52, 53, 133, 145, 155, 175.
Ptolemean system, 7, 172.
Ptolemy, works of, 14, 347; quadrant of, 320; lunar theory, 338; star catalogue of, 347.
Puehler's geometry, 331.
Pupils. See Assistants.
Purbach, 2; time determinations, 323; whether he used transversals, 330; trepidation, 355; trigonometry, 360.
Quadrant, great, at Augsburg, 31, 82; Tycho's, 101, 159, 320, 322.
Radius. See Cross-staff.
Raimundus of Verona on new star, 61, 64, 83.
Ramus, mathematician, 33.
Rantzov, friend of T., 116, 135, 253, 269, 270, 284.
Rasmus Pedersen, tenant of T., 217.
Ratisbon, coronation in 1575, 83.
Reduction of lunar motion to ecliptic, 344.
Refraction first noticed, 80, 336; neglected by Copernicus, 123; T.'s researches on, 334; cause of, 336; tables of, 265.
Regiomontanus, life, 3; ephemerides, 5; trigonometry, 47, 360; instruments, 317, 330; trepidation, 355.
Reinhold, 8, 18, 23, 124; his son, 83.
Reisacher on new star, 60, 64.
Reymers, Bar, on T.'s nose, 27; early life, 183; system of the world, 184; slanders T., 268, 273; flies from Prague, 288; corresponds with Kepler, 290; T. takes proceedings against him, he dies, 304; rumour of his having poisoned T., 312; prostaphæresis, 362.
Rhodius, assistant to T., 302.
Roemer brings T.'s MSS. to Paris, 374.
Roeslin on comet of 1577, 171; system of the world, 274.
Rogers, English envoy, 137, 182.
Rollenhagen, astrologer, 288, 312.
Rosenberg, friend of T., 303, 309.
Rosenkrands, Danish statesman, 198, 199, 215, 230; his son, Holger, 245, 301, 302.
Roskilde, prebend, 28, 109, 217, 221, 242; one granted to Flemlose, 118; treaty of Roskilde, 377. Rostock University, 24, 27; T.'s residence in 1597, 241.
Rothmann, 121, 134, 181, 183, 184; visits T., 206; abused by Reymers, 273; still alive in 1599, 288; absolute longitude, 352.
Rudolph II., 222, 261, 265, 277, 283, 285, 298, 306, 307.
Rudolphine tables, 301, 313, 365.
Rumph, Bohemian statesman, 279.
Sacrobosco, 3.
Safarik on region around Nova, 67.
Salary. See Income.