Wilbert Smith Archives Files Box 1130 16 1130-16-p035

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No. 5 LUMINOUS EFFICIENCY OF METEORS to the observed quantities, i.e., to the magni- tudes. In Jacchia’s system we have M,=—2.5 log I, (7) and M,=—2.5 log I. (7a) From equations (6) and (7a) it follows immedi- ately that the logarithmic difference between 7, expressed in cgs and in Jacchia’s units is 9.72. Therefore we have (log ren)px=—9-07 (gs) (log rer)8px=—18.79 * (Jacchia’s units). For bright meteors, to which a color index correction —1.8 is applicable, we have (log Te5)8pu= —18.07. In...