Leo Minorids (LMI): 19 Οκτ. ως 27 Oκτ. Μέγιστο 23 Οκτ. 2009

Από Bi2L
Οκτώβριος 10, 2009 σε Παρατήρηση κομητών, αστεροειδών, μετεώρων

https://www.astrovox.gr/forums/topic/10394-leo-minorids-lmi-19-%CE%BF%CE%BA%CF%84-%CF%89%CF%82-27-o%CE%BA%CF%84-%CE%BC%CE%AD%CE%B3%CE%B9%CF%83%CF%84%CE%BF-23-%CE%BF%CE%BA%CF%84-2009/

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Bi2L

Δημοσιεύτηκε Οκτώβριος 10, 2009

Leo Minorids (LMI)

πηγη imo.net

http://www.imo.net/calendar/2009#octdec

Active: October 19-27
Maximum: October 23 (λo = 210°)
ZHR = 2
Radiant: α = 161° δ = +38°
Radiant drift: see Table 6
v∞ = 62 km/s; r = 3.0
TFC: α = 190° δ = +58° and α = 135° δ = +30° (β > 40° N)

This weak minor shower has a peak ZHR apparently on or below the visual threshold. Imaging results have found signs of a radiant near the proposed position, but there is almost no reliable information on the shower's more probable active interval. Recent IMO video results analysed by Sirko Molau, searching for radiants without using known shower data, confirmed the radiant from multiple-station work, and found a maximum around λo = 210°. The radiant area can be seen only from the northern hemisphere, where it rises around midnight. The proposed maximum date has a waxing crescent Moon, which will have set long before radiant-rise, so giving the best-possible opportunity to confirm if the shower can be usefully observed visually. Telescopic, imaging or very careful visual plotting observations are advised.