Orionids Meteor Shower Oct 21-22 2012

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Orionids Meteor Shower Oct 21-22 2012

Postby brayden » Fri Oct 19, 2012 11:53 am

Hi all,
This one looks alright for Sun 21st morning and/or Mon 22nd morning (got one source saying the morning of 22nd). Anytime after midnight, otherwise 2-4am for those who will go for a shorter time span i-) . Generally its about one meteor every 5-10mins for this shower, radiant just under Orion constellation.

Orionids (ORI)

Active: October 2 — November 7; Maximum: October 21 (λ⊙ = 208°); ZHR = 25;
Radiant: α = 95°, δ = +16°; Radiant drift: see Table 6;
V∞ = 66 km/s; r = 2.5;
TFC: α = 100°, δ = +39° and α = 75°, δ = +24° (β > 40° N);
or α = 80°, δ = +1° and α = 117°, δ = +1° (β < 40° N).

October's waxing Moon favours the Orionid peak in 2012 too. The shower's radiant, near the celestial equator, is at a useful elevation by around local midnight in either hemisphere, somewhat before in the north, so most of the world can enjoy the shower. Each return from 2006 to 2009 produced unexpectedly strong ZHRs of around 40—70 on two or three consecutive dates. An earlier IMO analysis of the shower, using data from 1984—2001, found both the peak ZHR and r parameters varied somewhat from year to year, with the highest mean ZHR ranging from ∼ 14—31 during the examined interval. In addition, a suspected 12-year periodicity in stronger returns found earlier in the 20th century appeared to have been partly confirmed. That suggested better returns in the 2008—2010 interval, falling thereafter towards 2014—2016, so perhaps with ZHRs of about 25 this year. The recent strong returns seem to have had a separate resonant cause, though nothing further is anticipated for 2012. The Orionids often provide several lesser maxima, helping activity sometimes remain roughly constant for several consecutive nights centred on the main peak. In 1993 and 1998, a submaximum about as strong as the normal peak was detected on October 17/18 from Europe, for instance. All observers should be aware of these possibilities, as circumstances are equally favourable for covering October 17/18 under dark skies this time too. Several visual subradiants had been reported in the past, but recent video work found the radiant to be far less complex.
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Re: Orionids Meteor Shower Oct 21-22 2012

Postby brayden » Sun Oct 21, 2012 8:45 am

First time catch of an Orionid meteor. Not a bad show, enough activity to keep the interest. Around 3:06am a bright one fell to the west, lit up ground for half a sec. Some fell from the expected radiant but most were anywhere. Makes it a little harder for the cam to catch them lol.

Image

Next three showers to look forward to is the Leonids 17th Nov(10-15 ZHR), Phoenicids 6th Dec(100 ZHR) and Geminids 13th Dec(120 ZHR). Leonids are not going to be as active in the past (2001, 02 rate was up around 2000-3000 ZHR!), that was a great one to watch.
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Re: Orionids Meteor Shower Oct 21-22 2012

Postby Fu Manchu » Mon Oct 22, 2012 8:02 pm

You'd be pretty stoked to have got that one streaking past. Pretty good sky to view something like that.

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Re: Orionids Meteor Shower Oct 21-22 2012

Postby jcantelo » Wed Oct 24, 2012 1:26 pm

Getting up at 1130pm to watch this. IT wasnt a bad show, but it wouldve been nice to see a lot more. Still i was happy with what we did see. Got a couple of photos, as well as this timelapse.
I havent uploaded to Vimeo because it was having issues. So here it is on Youtube. Captured from about 130am till sunrise.
Watch in 1080 HD
Orionid Meteor Shower
http://www.youtube.com/watch?v=J4mjC_LUyQE&feature=results_video
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Orionids Meteor Shower Oct 21-22 2012

Postby Fu Manchu » Wed Oct 24, 2012 10:17 pm

Last night saw a huge slow meteor almost reach the ground. Moved straight down. Or at least appeared to. Verycool

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Re: Orionids Meteor Shower Oct 21-22 2012

Postby jcantelo » Wed Oct 24, 2012 10:19 pm

Fu Manchu wrote:Last night saw a huge slow meteor almost reach the ground. Moved straight down. Or at least appeared to. Verycool

They are very awesome….To best honest I have been interested in meteors and astroids but never really into them. Saturday night changed that a bit, albeit a small uneventful shower.

What you saw then Fu would just be awesome. Lucky bugger.
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