(meteorobs) Omicron Draconid Outburst instead

Pat Branch pat_branch at yahoo.com
Thu Aug 13 18:37:31 EDT 2015 

I noticed a number of meteors to the NW of Cassiopeia that seemed to go straight down. These were bright white and of short duration. They seemed to go thru the Ursa Major area. I saw about 4 of those in 2 hours and did not count them as Perseids. But they were so bright they were hard to ignore. Call them Omicron Draconids or Kappa Cygnids, but something was definately going on over there. 
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Today's Topics:

  1. Re: Was it really an Omicron Draconid outburst instead? (george)


----------------------------------------------------------------------

Message: 1
Date: Sat, 25 Jul 2015 23:05:50 -0400
From: george <gwgliba at gmail.com>
Subject: Re: (meteorobs) Was it really an Omicron Draconid outburst
    instead?
To: Meteor science and meteor observing <meteorobs at meteorobs.org>
Message-ID: <D44B27AE-A494-4BCC-BBDE-C071BB5DF6D9 at gmail.com>
Content-Type: text/plain; charset="utf-8"

 
While checking my personal hardcopy library the book I have titled ?David Levy?s
Guide to Observing Meteor Showers? had the answer on page 66 in chapter 10 
?The Omicron Draconids, continued?  which states:

??The similarity of the velocity of the Omicron Draconids to that of the Kappa Cygnids,
plus their proximity to the larger stream, would lend some support to the idea that they 
are part of the complex. But since the the orbits of the two streams are quite different, 
the Omicron Draconids are probably unrelated to the Kappa Cygnids?.

Starry Skies,
GWG



On Jul 25, 2015, at 5:36 PM, george <gwgliba at gmail.com> wrote:

> Meteorobs Folks.
> 
> After re-reading the below mentioned article again more slowly, I?m not sure
> if I had the association between the two streams correct.  When I first did a 
> speed read on the article the following paragraph caught my eye:
> 
> 
> 3 FILAMENTS WITHIN THE KAPPA CYGNID COMPLEX
> 
> The search we described above and its conclusion is not the first time that it has been suggested that the Kappa Cygnids are in fact composed of a number of substreams or filaments. As mentioned in Section 1, Davidson (1914) reported a radiant which he called the Alpha Lyrid shower. The Norton Star Atlas (1950) lists the Omicron Draconids and the Zeta Draconids in addition to the Kappa Cygnids.
> 
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------
> 
> But, I don?t know if this association is correct now as it isn't clear.  Any comments 
> or opinions about this are welcomed.
> 
> GWG
> 
> 
> On Jul 25, 2015, at 4:28 PM, george <gwgliba at gmail.com> wrote:
> 
>> Meteor Enthusiasts,
>> 
>>    Interestingly, it looks like David Levy?s statement about the Kappa Cygnids association 
>> may not be that far off as there are some meteor researchers who think the Omicron 
>> Draconids and the Kappa Cygnids may be from the same meteoroid stream complex.  
>> Here is an article link for more information:
>> 
>> The Kappa Cygnid Meteoroid Complex 
>> 
>> MNRAS Volume 371, Issue 2  Pp. 684-694
>> by D. C. Jones1,*, I. P. Williams1,* and V. Porubc?a
>> 
>> http://mnras.oxfordjournals.org/content/371/2/684.full
>> 
>> Starry Skies,
>> GWG
>> Screech Owl Hill Observatory
>> 
>> 
>> On Jul 20, 2015, at 11:09 AM, george <gwgliba at gmail.com> wrote:
>> 
>>> Meteor Enthusiasts,
>>> 
>>> I went back and looked at my meteor observations from July 16/17 and I 
>>> noted that three or four were coming from near the head of Draco, but I 
>>> called them sporadic.  However that was before I discovered that the Omicron
>>> Draconid radiant was near the head of Draco.  So, including them, and not 
>>> counting the poor conditions on the 17/18, I saw 7 or 8 suspected Omicron 
>>> Draconid meteors, which could be visual confirmation of this activity.
>>> 
>>> Starry Skies,
>>> GWG
>>> 
>>> 
>>> 
>>> On Jul 19, 2015, at 8:43 PM, jarnac <observe at jarnac.org> wrote:
>>> 
>>>> Dear friends,
>>>> 
>>>> I do not wish to discount the possibility that these were Omicron 
>>>> Draconids, particularly since the very first meteor I ever saw, on 
>>>> July 4, 1956, from a site near Brandon, Vermont, wss probably an 
>>>> Omicron Draconid.  I did mention in my initial report thatr the Kappa 
>>>> Cygnid  association may be off since their maximum is more than two weeks away.
>>>> 
>>>> Whatever the source, there were a lot of meteors that night!
>>>> 
>>>> 
>>>> Sincerely
>>>> 
>>>> David H. Levy
>>>> 

>>>>> 
>>>>> ------------------------------
>>>>> 
>>>>> Message: 3
>>>>> Date: Sun, 19 Jul 2015 20:27:00 -0400
>>>>> From: george <gwgliba at gmail.com>
>>>>> Subject: Re: (meteorobs) Possible Kappa Cygnid outburst, continued
>>>>> To: Meteor science and meteor observing <meteorobs at meteorobs.org>
>>>>> Message-ID: <FCF97123-2C8F-404D-8805-317A2A055F06 at gmail.com>
>>>>> Content-Type: text/plain; charset=windows-1252
>>>>> 
>>>>> 
>>>>> David and other Meteor Enthusiasts,
>>>>> 
>>>>> There is a minor meteor radiant only seen a few times called the 
>>>>> Omicron Draconids
>>>>> that was first seen by the famous English meteor observer William F. 
>>>>> Denning in 1876.
>>>>> According to Gary Kronk?s Meteor Showers Online.  The Kappa Cygnid 
>>>>> position is only
>>>>> about 6 degrees from the location of Omicron Draconis.  Could this be them?
>>>>> 
>>>>> More at:
>>>>> 
>>>>> http://meteorshowersonline.com/showers/omicron_draconids.html
>>>>> 
>>>>> Starrt Skies,
>>>>> GWG
>>>>> 
>>>>> 
>>>>> On Jul 18, 2015, at 12:49 PM, jarnac <observe at jarnac.org> wrote:
>>>>> 
>>>>>> Dewar friends,
>>>>>> 
>>>>>> We could not get a repeat last night due to weather.  But there were
>>>>>> also a number of early Delta Aquarids.  One of them, from a few
>>>>>> nights ago, was very bright, possibly minus 8 or more.  I did not see
>>>>>> the meteoir but I did catch the bolide flash which alerted me at my
>>>>>> telescope, and I witnessed the train for about a minute.
>>>>>> 
>>>>>> Incidentally, Ed's last name is correctly Guenther.  Sorry.
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> Perhaps we will have other reports as the summer meteor showers
>>>>>> continue to intensify.
>>>>>> 
>>>>>> 
>>>>>> David H. Levy
>>>>>> 

  
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