Mathematics – Probability
Scientific paper
Mar 1970
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970natur.225.1232h&link_type=abstract
Nature, Volume 225, Issue 5239, pp. 1232-1233 (1970).
Mathematics
Probability
3
Scientific paper
WE have detected a new meteor stream complex, active between solar longitudes λsolar = 257° and 262°, with a true radiant some 3° north-west of 11 Canis Minor. The stream was first recorded on the morning of December 10, 1964. During visual watches with a richest field 5-inch telescope, positional data were recorded for meteors in the range from magnitude +6 to +12 (ref. 1). Five meteors, originally classified as sporadic, were found to be radiating from an observed centre at right ascension (α) 115.8 +/- 1.2°, declination (δ) = +13.0 +/- 0.8°. Statistical tests indicate that the probability of this radiant being due to the chance lining up of sporadic meteors is only 1 in 104. No velocity measurements were available and so orbital elements were computed using Porter's method2, initially assuming parabolic motion. Corrections to the observed radiant for diurnal aberration and zenithal attraction were small, the resulting parabolic orbit being highly inclined with a remarkably small perihelion distance.
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