Q-Geminids (EGE): 14 Οκτ. ως 27 Οκτ. Μέγιστο: 18 Οκτ. 2010

[Bi2L]

ǫ-Geminids (EGE)

 

πηγη imo.net

http://www.imo.net/calendar/2010#ege

 

 

Active: October 14–27;

Maximum: October 18(λˆ = 205°);

ZHR = 3;

Radiant: α = 102°, δ = +27°;

Radiant drift: see Table 6;

V∞ = 70 km/s; r = 3.0;

TFC: α = 090°, δ = +20° and α = 125°, δ = +20°(β > 20° S).

 

A weak minor shower with characteristics and activity nearly coincident with the Orionids, so great care must be taken to separate the two sources by instrumental techniques – especially video or telescopic work – or visual plotting. The waxing gibbous Moon sets between about 1h30m and 2h30m a.m. local time for northern to southern mid-latitudes (later timings further south), so presenting a good opportunity to obtain more data on them from either hemisphere. Northern observers have a radiant elevation advantage, as this area of sky can be usefully accessed here from about midnight onwards. Note the parameters have been questioned by the latest IMO data. HMO p. 154 suggested the visual peak may fall closer to λˆ ~ 208°–209° (2010 October 21– 22), though ZHRs remained above 2 from roughly October 18–23, while VID found the shower was active between October 5–22 with a maximum at λˆ = 200° instead (October 14).