A

Abell 2218, 123 Abraham, 19

Absolution by Murder (Tremayne),

357-358 Actium, Battle of, 367 Adams, John Couch, 269, 306, 312 Adventures ofTintin (Herge), 103 Akkadians, 83 Albedo, 314, 324, 435 Al-Biruni, 328 Aldebaran, 245

Alexander the Great, 17, 18, 86, 381 Alexandria, Church of, 365, 366 Algol, 322-326 Allegheny Observatory, 201 Almanac, astronomical, 94 American Academy of Arts and

Sciences, 179, 231 American Association for the

Advancement of Science, 206, 231

American Astronomical Society, 225 American Philosophical Society, 231

Angles, 360, 361, 363

Angstrom, 145-146 Angstrom, Anders, 146 Anno Domini, 366, 377 Annular eclipse(s), 48, 424 of 1831, 237 of 1879, 210-212 of 1963, 417 of 1983, 417 of 1998, 417 of 1999, 331, 332, 333 of 2002, 341, 350 of 2002 to 2022, 340, 341, 342 of 2003, 341, 350 of 2005, 343, 345, 350 of 2012, 351 of 2013, 345 of 2059, 417 of 2078, 417 of 2097, 417

contact points in, 282, 428 definition of, 47, 388 Earth's orbit and, 389 forthcoming, 350-351 frequency of, 431 Metonic cycle of, 417 number of, 432 saronic cycle and, 414

total eclipse and, 52 in twentieth century, 76 Annunciation, 367 Antony, Mark, 367 Aphelion definition of, 45, 435 Earth near, 65, 149, 389, 423,

424, 435 Mercury near, 279 perihelion and, 395 solar energy and, 386, 387 Apocalypse, 373-374 Apogee definition of, 47, 435 Moon near, 6, 7, 47, 149, 387388, 421, 427 opposition and, 408 Apollo missions, 11, 12, 150 Appulse, 257, 303, 305, 435 Arabia, Arabs, 16, 155 Arbela, Battle of, 381 Archilochus, 1 Arcsecond, 435 Aristarchus of Samos, 29, 87 Aristophanes, 37 Aristotle, 29 Arrest, Heinrich d', 269 Assyria, Assyrians, 18, 83-84 Asteroid(s), xiv. See also specific asteroids binary, 319-320 comets and, 260 Eros, 300

measuring, 253-260 Mitchella, 234 movements of, 68

occultation of, 272 planets and, 311 Sun and, 126 TNOs and, 311 transits and, 308 Astrology, 27, 84, 85 Astronomical Society of London, 263

Astronomical unit (AU), 120, 285,

299-301, 435 Athens, Athenians, 24, 43, 148

Auguries of Innocence (Blake), 356 Augustine, Saint, 362-363, 367-368 Augustus, 39, 367 Aureole, 284

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