Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 339
e radiant point ofthese meteors is in the con-stellation Leo, and hence theyare often called the Leonids.Their orbit has been deter-mined with great accuracy, andis shown in Fig. 354. Whilethe November meteors are notusually very numerous or bright,a remarkably brilliant displayFlg- 353> of them… … ASTRONOMY. 313 a group which traverses the orbit in a little over thirty-three years. A conjectural form of this condensed group isshown in Fig. 355. The group is so large that it takes ittwo or three years to pass the perihelion point: hence theremay be a brilliant meteoric display two or three…
Astronomy
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