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g. 21-25 | N | |shower in 1879 | | | | | | +---------------+--------+----------------+---------------+----------------+--------+ | | |Between Capella | After 10 | Aug. 21, 25, | | | Epsilon |Sept. 7 | and the | P.M. | Sept. 6-8, 21, | N.E. | | Perseids | | Pleiades | v. Sw. Sk. | Nov. 29. | | +---------------+--------+----------------+---------------+----------------+--------+ |Alpha Arietids |Sept. 21| Near Hamal | Sl. T. | Aug. 12, Oct. 7| E. | | | | ([a]) Arietis | | | | +---------------+--------+----------------+---------------+----------------+--------+ |Gamma Pegasids |Sept. 22| Near and S.E. | Sl. | July 31, Aug. | E. | | | | of Great Sq. | | 25, etc. | | +---------------+--------+----------------+---------------+----------------+--------+ The Perseids are of a yellowish color, and move with medium velocity. Their line of flight is from northeast to southwest. They are probably visible for more than a month, from the latter half of July to the last week in August. The August meteors are known as the "Tears of St. Lawrence." The Abbreviations under _Characteristics_ are as follows: v.--very Sl.--Slow Sk.--Streak-leaving meteors. M.--Moderately B.--Bright T.--Train-leaving meteors. Sw.--Swift F.--Faint Sh.--Short meteors. THE CONSTELLATIONS OF AUTUMN. [Illustration: Map showing the principal stars visible from Lat. 40[deg] N. at 9 o'clock, October first.] CASSIOPEIA (kas-i-[=o]-p[=e]'-ya)--THE LADY IN THE CHAIR. (Face North.) LOCATION.--A line drawn from [d] Ursae Majoris, through Polaris, strikes [a] Cassiopeiae. It is situated the same distance from Polaris as Ursa Major, and about midway between Polaris and the zenith in the Milky Way. Cassiopeia is characterized by a zigzag row of stars which form a rude "W," but in mid-autumn, to an observer facing north, the "W" appears more like an "M," and is almost overhead. Note the spot marked 1572. This is where a very famous temporary star appeared in that year. It was bright enough at one time to be seen in full sunshine. The star [[^e]] is sixteen light years distant. Caph is equidistant from the Pole, and
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