通过在扫描仪上得到的黑白图像的处理，求得两颗流星的照相星等分别为-10.3±0.2和-4.8±0.2.由此可以得到它们的质量和电子线密度。
Through digitized procession of the photographs , photographic magnitudes of - 10.3 ± 0.2 and - 4.8 ± 0.2 have been measured for the two Leonid meteors , respectively . Their masses and electric line densities could be deduced .
照相星等