FREE BOOKS

Author's List




PREV.   NEXT  
|<   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46  
47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   >>   >|  
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
PREV.   NEXT  
|<   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46  
47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   >>   >|  



Top keywords:

meteors

 
Polaris
 
leaving
 

August

 
visible
 
Perseids
 
midway
 

Cassiopeia

 

zenith

 

strikes


Cassiopeiae
 
Majoris
 

situated

 
distance
 
characterized
 

LOCATION

 
observer
 

bright

 

temporary

 

appeared


distant

 

equidistant

 

sunshine

 

sixteen

 

famous

 

autumn

 

CASSIOPEIA

 
zigzag
 
facing
 

marked


overhead

 

appears

 
yellowish
 

Pegasids

 

northeast

 

southwest

 

flight

 

medium

 

velocity

 
Arietis

Epsilon

 

Capella

 

Between

 

shower

 
Arietids
 

Pleiades

 

CONSTELLATIONS

 

AUTUMN

 

Illustration

 

October