A Star in the East
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Hamilton Amateur Astronomers December 1998 Volume 6 Issue 2 A Star In The East by Denise Kaisler [email protected] natural sciences, but also in law, the Of course, the court astronomers had humanities, and of course theology. an ingenious way of covering up. ctober's installment of Event His goal in visiting China was not When an eclipse was of different OHorizon saw the publication only to disseminate knowledge or duration, they would say that the of "The Three Wise Men", an article learn about a foreign culture. He heavens were out of order. Deviations devoted to the accomplishments of hoped to win converts to his religion from the "true" calculations meant ancient Chinese astronomers. But just by impressing the Chinese with his that odd or evil circumstances would as the history of Western astronomy "superior" western science. follow. wasn't written in one chapter, so it is with the sky-lore of the Middle Soon after his arrival on August 7, However, Ricci had other ideas. He Kingdom. 1582, Ricci did indeed begin to noticed that the numbers that were impress the scholars of Chao Ch'ing being used at Nanch'ang had actually Another part of this history -- one Fu with his new ideas. He resided in been drawn up for the city of Beijing, which we in the west might find that southern city for a number of far to the north. He explained that the particularly exciting -- is the one in years, eventually taking on a student eclipse was "less than had been which missionaries versed in who helped him translate Euclid's foreseen" because of the difference in European astronomy first journeyed *Elements* into the Han script. latitude between the two cities. This to the far east. This period began at Eventually, the more zealous of was an admirable accomplishment, the end of the sixteenth century, a Ricci's admirers began calling Ricci (Continued on page 6) time when the celebrated Ming the world's greatest savant. Dynasty was in decline and much Chinese astronomical knowledge had However, what really made the been lost or forgotten. priest's reputation was his calculation of the solar eclipse at Father Matteo Ricci was the man who Nanch'ang in 1592. To the imperial began this exchange of ideas in court, eclipses were of the utmost earnest. This Jesuit priest was a importance. Court astronomers were contemporary of Tycho Brahe and a required to give precise times for student of Clavius. Ricci's master was these events so that the necessary known to be in change of Gregorian rituals (some of which required the calendrical reform and it's probably presence of the Emperor himself) for that reason that the Moon's largest could be scheduled. But, since they crater is named after him. lacked the accurate cosmogony, the court astronomers were often Like many educated men of his time, wrong. Astronomers make a 3D map of the Ricci was not only well-versed in the heavens by measuring the angular separations of stars. Chair’s Report page 2 Calendar of Events page 8 inside... Constellation of the Month page 3 December Star Chart page 9 Rob’serving Report page 4 1999 Calendar page 10 Page 2 Chair's Report he HAA general meetings are asteroid.lowell.edu/, is timely since T one of the main activities of the ecliptic is now high in the sky in our club. Many of the presentations the evening making asteroid hunting require the use of an overhead a worthwhile activity. You should projector. In the past we were able to also check out the Near Earth vent Horizon is a borrow the Hamilton Spectator’s Asteroid Rendezvous (NEAR) Epublication of the Hamilton Amateur projector but they have a new policy home page at http://near.jhuapl. Astronomers (HAA). which now prevents us from using it. edu/. On December 20th the NEAR Since the meetings are such an spacecraft will fire its rockets in The HAA is an amateur astronomy important part of our club the council preparation for settling into an orbit club dedicated to the promotion and decided to purchase our own. Come around the asteroid Eros. enjoyment of astronomy for people of down to the Spectator building on the all ages and experience levels second Friday of most months and see Be sure to make note of the meeting the new overhead projector for dates in the yearly Calendar of The cost of the subscription is yourself. I'm sure that you will enjoy Events in this issue since some of included in the $15 individual or $20 the talks too! the General Meeting dates are not family membership fee for the year. on the 2nd Friday of the month due Event Horizon is published a In keeping with this month’s general to scheduling conflicts. minimum of 10 times a year. meeting topic of Choosing a Telescope I am recommending that Stewart Attlesey HAA Council you check out the excellent [email protected] Chair Stewart Attlesey information on the Celestron web Second Chair Doug Welch page at: http://www.celestron.com/ Secretary Marg Walton tel4ast.htm. The next web site, http:// Treasurer Barbara Wight Obs. Dir Rob Roy Editor Rosa Assalone Membership Dir. Ev Rilett HAJA Coord Rosa Assalone Editor’s Report Councillors Ann Tekatch Ray Badgerow f you have not yet renewed check out the December nights. Steve Barnes your membership, you should What better way is there to celebrate I the holidays than to observe the John McCloy do it now to avoid missing any issue Gary Sutton of This issue is the night sky with friends. But, don’t Event Horizon. last issue which will be sent out to forget to dress warmly (see Web Site members who have not renewed. November’s Rob’serving Report for helpful hints), and call one of the http://www.science.mcmaster.ca/HAA/ Be sure to remove the 1999 Calendar contacts before heading out. or Events (the last page of this issue of Event Horizon) and place it in a Rosa Assalone prominent location in your home so 540-8793 you don’t miss any of next year’s [email protected] exciting events. All the possible Binbrook observing nights are marked on the calendar, as are General meetings, star parties, and other special events. Proposed Binbrook observing nights are also listed in the monthly calendar of events, so if you don’t want to wait until 1999 to do some observing Don’t forget to renew your membership! Event Horizon - Hamilton Amateur Astronomers Page 3 Constellation of the Month - Auriga Hippodameia, and the King set a through the heavens for a single day. challenge for all her suitors. They His father gave in to him, but Margaret Walton would have to race him in a chariot Phaethon soon realized that the race. If they won, they would marry chariot was harder to handle than he his daughter; if they lost, they had imagined. He lost control and in forfeited their lives. Oenomaus' order to bring order back to the world, he brightest star in Auriga, horses came from the god Ares and Zeus hurled a thunderbolt at T Capella, is the closest star were swifter than the North Wind, Phaethon. He died and fell into the to the pole and is visible at some time so unbeatable. The Gods river Eridanus. during the night all year at our intervened when it came to Pelops, latitude. The constellation's midnight the son of Hermes. Poseidon gave Objects culmination is in mid-December, so Pelops a gold chariot drawn by this is the best time to view this winged gold steeds. To ensure his M36 (NGC1960) - Bright, rich open constellation. There are several fine victory, Pelops plotted with cluster of magnitude 6. Can be seen open clusters in Auriga, many of them Myrtilus to replace the lynchpins through binoculars. visible in binoculars. from the axles of the king's chariot with wax. He was promised half the M37 (NGC2099) - Rich, condensed Many stories are attached to the kingdom and a night with the bride. open cluster of magnitude 5.6. constellation of Auriga. One story Pelops was victorious, but during Another binocular object. says that Auriga is a shepherd holding their celebration, Hippodameia a she-goat. The goat raised Zeus resisted the advances of Myrtilus. M38 (NGC1912) - Bright, large rich when he was an infant, saving him On the ride home, Pelops kicked open cluster of magnitude 6.4. Can from his father Cronus. Myrtilus off the chariot, killing him. also be seen through binoculars. Hermes paced Myrtilus in the stars Auriga may also represent in appreciation of his trickery. In 7X binoculars, all three of the Erichthonius, the fourth king of above clusters can be seen in the same ancient Athens, who was lame and There is yet another chariot story field. invented the chariot. Auriga is also connected with Auriga. Phaethon said to be another charioteer, was the son of the sun god Helios NGC1857 - Rich open cluster of Myrtilus, the charioteer of King and Clymene. Phaethon begged magnitude 7. Oenomaus. The king had a daughter, permission to drive the sun-chariot NGC1893 - Large rich cluster involved in large emission nebula. NGC1907 - Rich open cluster of magnitude 8. NGC1931 - A bright, large open cluster with nebulosity. IC405 - Flaming Star Nebula - very large, very faint nebula. Need to use an OIII or nebula filter. Event Horizon - Hamilton Amateur Astronomers Page 4 Rob'serving Report his month's Binbrook appears on nineteenth-century the second is the end (egress).