(meteorobs) Possible Kappa Cygnid outburst, continued
george
gwgliba at gmail.com
Sun Jul 19 20:27:00 EDT 2015
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
>
>
>
> At 05:06 PM 7/17/2015, you wrote:
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>> Today's Topics:
>>
>> 1. Meteor Activity Outlook for July 18-24, 2015 (Robert Lunsford)
>> 2. Meteor Obs. 7/17/15 - Mathias, WVa (george)
>> 3. Possible Kappa Cygnid outburst (jarnac)
>> 4. Re: Possible Kappa Cygnid outburst (Michael Boschat)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Fri, 17 Jul 2015 13:14:06 -0700
>> From: Robert Lunsford <lunro.imo.usa at cox.net>
>> Subject: (meteorobs) Meteor Activity Outlook for July 18-24, 2015
>> To: Meteor science and meteor observing <meteorobs at meteorobs.org>
>> Message-ID: <20150717161406.TGYKO.172630.imail at fed1rmwml113>
>> Content-Type: text/plain; charset=utf-8
>>
>> During this period the moon reaches its first quarter phase on
>> Thursday July 23rd. At this time the moon is located 90 degrees east
>> of the sun and sets near midnight local daylight time (LDT). This
>> weekend the waxing crescent moon will set during the late evening
>> hours and will not interfere with meteor observing. The estimated
>> total hourly meteor rates for evening observers this week is near 4
>> no matter your location. For morning observers the estimated total
>> hourly rates should be near 13 no matter your location. The actual
>> rates will also depend on factors such as personal light and motion
>> perception, local weather conditions, alertness and experience in
>> watching meteor activity. Note that the hourly rates listed below
>> are estimates as viewed from dark sky sites away from urban light
>> sources. Observers viewing from urban areas will see less activity
>> as only the brightest meteors will be visible from such locations.
>>
>> The radiant (the area of the sky where meteors appear to shoot from)
>> positions and rates listed below are exact for Saturday night/Sunday
>> morning July 18/19 These positions do not change greatly day to day
>> so the listed coordinates may be used during this entire period.
>> Most star atlases (available at science stores and planetariums)
>> will provide maps with grid lines of the celestial coordinates so
>> that you may find out exactly where these positions are located in
>> the sky. A planisphere or computer planetarium program is also
>> useful in showing the sky at any time of night on any date of the
>> year. Activity from each radiant is best seen when it is positioned
>> highest in the sky, either due north or south along the meridian,
>> depending on your latitude. It must be remembered that meteor
>> activity is rarely seen at the radiant position. Rather they shoot
>> outwards from the radiant so it is best to center your field of view
>> so that the radiant lies at the edge and not the center. Vie
>> wing there will allow you to easily trace the path of each meteor
>> back to the radiant (if it is a shower member) or in another
>> direction if it is a sporadic. Meteor activity is not seen from
>> radiants that are located below the horizon. The positions below
>> are listed in a west to east manner in order of right ascension
>> (celestial longitude). The positions listed first are located
>> further west therefore are accessible earlier in the night while
>> those listed further down the list rise later in the night.
>>
>> These sources of meteoric activity are expected to be active this week.
>>
>> The Alpha Capricornids (CAP) are active for over a month lasting
>> from July 6 through August 10. Unlike most showers, the Alpha Caps
>> have a plateau-like maximum with maximum activity lasting from July
>> 25-30. Since maximum activity is still a week away, hourly rates
>> will be near 1 no matter your location. The radiant is currently
>> located at 19:52 (298) -12. This area of the sky is located on the
>> Aquila/Sagittarius border, 5 degrees west of the 4th magnitude star
>> known as Algedi (Alpha Capricornii). The radiant is best placed near
>> 0100 local daylight time (LDT) when it lies on the meridian and is
>> highest in the sky. With an entry velocity of 22 km/sec., the
>> average Alpha Capricornid meteor would be of slow velocity.
>>
>> The center of the large Anthelion (ANT) radiant is currently located
>> at 20:36 (309) -17. This position lies in western Capricornus, 3
>> degrees southeast of the 3rd magnitude star known as Dabih (Beta
>> Capricorni). These meteors may be seen all night long but the
>> radiant is best placed near 0200 LDT when it lies on the meridian
>> and is positioned highest in the sky. Due to the large radiant area,
>> meteors from this source may also appear to radiant from the
>> constellation of Microscopium, southern Aquila, western Aquarius,
>> and eastern Sagittarius as well as Capricornus. Rates at this time
>> should be near less than 1 per hour as seen from the northern
>> hemisphere and 1 per hour as seen from south of the equator. With an
>> entry velocity of 30 km/sec., the average Anthelion meteor would be
>> of slow velocity.
>>
>> The Sigma Capricornids (SCA) were discovered by Zdenek Sekanina and
>> are active for a month lasting from June 19 through July 24. Maximum
>> occurred on June 27th. The radiant is currently located at 21:36
>> (324) -02. This area of the sky is located in northern Aquarius, 3
>> degrees north of the 3rd magnitude star known as Sadalsuud (Beta
>> Aquarii). The radiant is best placed near 0300 LDT when it lies on
>> the meridian and is highest in the sky. Rates at this time should be
>> less than 1 per hour no matter your location. With an entry velocity
>> of 42 km/sec., the average Sigma Capricornid meteor would be of
>> medium velocity.
>>
>> Activity from the Delta Aquariids (SDA) will begin next week from a
>> radiant located at 22:08 (332) -19. This position is located in
>> southwestern Aquarius, 10 degrees southwest of the third magnitude
>> Delta Aquarii. Maximum activity is expected on July 29th. Hourly
>> rates will depend on your latitude. Those viewing from the southern
>> tropics will see the best rates of near 1-2 per hour. Rates seen
>> from mid-northern latitudes will range from 0-1 per hour, depending
>> on the haziness of your skies. The radiant rises near 2200 (10pm)
>> LDT for observers located in the mid northern latitudes, but is best
>> placed near 0300 LDT, when it lies highest in the sky. With an entry
>> velocity of 42 km/sec., most activity from this radiant would be of
>> average velocities.
>>
>> The Piscids Austrinids (PAU) are a minor shower not well seen from
>> the northern hemisphere. This radiant is active from July 15 through
>> August 10. Maximum activity occurs on July 28 when the zenith hourly
>> rate (ZHR) may reach five. These rates are only seen from the
>> southern hemisphere where the radiant passes overhead. From
>> mid-northern latitudes, rates of one per hour at maximum are usually
>> seen. The radiant is currently located at 22:16 (334) -34. This
>> position lies in central Piscis Austrinus, 9 degrees southwest of
>> the bright first magnitude star Fomalhaut (Alpha Piscis Austrinus).
>> The radiant is best placed near 0300 LDT, when it lies highest in
>> the sky. With an entry velocity of 35km/sec., most activity from
>> this radiant would be of average velocities.
>>
>> The July Pegasids (JPE) are active from a radiant located at 23:40
>> (355) +13. This area of the sky is located in southern Pegasus,
>> between the 3rd magnitude star Algenib (Gamma Pegasi) and the 2nd
>> magnitude star known as Markab (Alpha Pegasi). This area of the sky
>> is best seen during the last dark hour before dawn when the radiant
>> lies highest in a dark sky. Maximum activity occurred on July 10th
>> so rates this weekend are expected to be near less than 1 per hour
>> no matter your location. With an entry velocity of 68 km/sec., the
>> average meteor from this source would be of swift velocity.
>>
>> The Perseids (PER) are active from a radiant located at 00:40 (010)
>> +52. This area of the sky lies in southern Cassiopeia, 5 degrees
>> south of the 2nd magnitude star known as Schedar (Alpha
>> Cassiopeiae). Since the maximum is nearly a month away, rates are
>> expected to be low, probably around 2 per hour during the late
>> morning hours. Observers south of the equator will have difficulty
>> seeing any activity as the radiant lies low in the north at best.
>> With an entry velocity of 61 km/sec., the average Peresid meteor
>> would be of swift speed.
>>
>> The Tau Cetids (TCT) were discovered by Sirko Molau using data from
>> the IMO video database. This activity is only active on 4 nights
>> with maximum activity occurring on the 21st. The radiant is located
>> at 01:20 (020) -18, which places it in southern Cetus, 7 degrees
>> east if the 2nd magnitude star known as Deneb Kaitos (Beta Ceti).
>> Rates would most likely be less than 1 as seen from the northern
>> hemisphere and perhaps 1 per hour for observers located south of the
>> equator. These meteors would be best seen during the last hour
>> before dawn when the radiant lies highest in a dark sky. With an
>> entry velocity of 65 km/sec., the average meteor from this source
>> would be of swift velocity.
>>
>> The Phi Piscids (PPS) were discovered by Dr. Peter Brown in his
>> meteoroid stream survey using the Canadian Meteor Orbit Radar. This
>> shower was later verified by Dr. Peter Jenniskens and David Holman
>> using data from the CAMS network in northern California. These
>> meteors are active from June 11 through July 25 with maximum
>> activity occurring on July 2nd. The current position of the radiant
>> is 01:56 (029) +34. This position lies in the constellation of
>> Triangulum, 5 degrees north of the 3rd magnitude star known as Ras
>> al Muthallah (Alpha Trianguli). Rates are currently expected to be
>> near 1 per hour for observers in the northern hemisphere and less
>> than 1 for observers located south of the equator. With an entry
>> velocity of 68 km/sec., the average Phi Piscid meteor would be of swift speed.
>>
>> Activity from the c-Andromedids (CAN) is ending this weekend. The
>> radiant currently lies at 02:48 (042) +50, which places it in
>> western Perseus, 5 degrees west of the 2nd magnitude star known as
>> Mirfak (Alpha Persei). This area of the sky is best seen during the
>> last dark hour before dawn when the radiant lies highest in a dark
>> sky. Observers in the northern hemisphere are better situated to
>> view this activity as the radiant rises much higher in the sky
>> before dawn as seen from northern latitudes. Current rates would be
>> less than one per hour no matter your location. With an entry
>> velocity of 60 km/sec., the average meteor from this source would be
>> of swift velocity.
>>
>> As seen from the mid-northern hemisphere (45N) one would expect to
>> see approximately 8 sporadic meteors per hour during the last hour
>> before dawn as seen from rural observing sites. Evening rates would
>> be near 3 per hour. As seen from the tropical southern latitudes
>> (25S), morning rates would be near 7 per hour as seen from rural
>> observing sites and 3 per hour during the evening hours. Locations
>> between these two extremes would see activity between the listed figures.
>>
>> The list below offers the information from above in a condensed
>> form. Rates and
>> positions are exact for Saturday night/Sunday morning unless specified.
>>
>> Alpha Capricornids (CAP) - 19:52 (298) -12 Velocity - 22km/sec.
>> Northern Hemisphere - 1 per hr. Southern Hemisphere - 1 per hr
>>
>> Anthelion (ANT) - 20:36 (309) -17 Velocity - 30km/sec.
>> Northern Hemisphere - <1 per hr. Southern Hemisphere - 2 per hr
>>
>> Sigma Capricornids (SCA) - 21:36 (324) -02 Velocity - 42km/sec.
>> Northern Hemisphere - <1 per hr. Southern Hemisphere - <1 per hr
>>
>> Delta Aquariids (SDA) - 22:08 (332) -19 Velocity - 42km/sec.
>> Northern Hemisphere - 1 per hr. Southern Hemisphere - 2 per hr
>>
>> Piscids Austrinids (PAU) - 22:16 (334) -34 Velocity - 35km/sec.
>> Northern Hemisphere - <1 per hr. Southern Hemisphere - <1 per hr
>>
>> July Pegasids (JPE) - 23:40 (355) +13 Velocity - 68km/sec.
>> Northern Hemisphere - <1 per hr. Southern Hemisphere - <1 per hr
>>
>> Perseids (PER) - 00:40 (010) +52 Velocity - 61km/sec.
>> Northern Hemisphere - 2 per hr. Southern Hemisphere - <1 per hr
>>
>> Tau Cetids (TCT) - 01:20 (020) -18 Velocity - 65km/sec.
>> Northern Hemisphere - <1 per hr. Southern Hemisphere - <1 per hr
>>
>> Phi Piscids (PPS) - 01:56 (029) +34 Velocity - 68km/sec.
>> Northern Hemisphere - 1 per hr. Southern Hemisphere - <1 per hr
>>
>> c-Andromedids (CAN) - 02:48 (042) +50 Velocity - 60km/sec.
>> Northern Hemisphere - <1 per hr. Southern Hemisphere - <1 per hr
>>
>> Clear Skies!
>> Robert Lunsford
>> American Meteor Society
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Fri, 17 Jul 2015 17:07:32 -0400
>> From: george <gwgliba at gmail.com>
>> Subject: (meteorobs) Meteor Obs. 7/17/15 - Mathias, WVa
>> To: Meteor science and meteor observing <meteorobs at meteorobs.org>
>> Message-ID: <F20F2304-58E7-44B2-98DF-F2686432E9C4 at gmail.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>>
>>
>> Screech Owl Hill Observatory, Mountain Meadows
>> Mathias, West Virginia - July 17, 2015
>>
>> We finally had a nice mostly clear night after several days of on
>> and off rain.
>> I saw my first Perseid (PER) and Southern Delta Aquarid (SDA) meteors for
>> the season, as well as activity from several minor meteor
>> radiants. The Milky
>> Way was beautiful as always. No meteors brighter than 0 magnitude was seen.
>> that one was a long trailed SDA that left a 3 second train. I only
>> saw one Phi
>> Piscid (PPS), but it was 1st magnitude and also had a nice 3 second train.
>> One of the two Antihelion (ANT) meteors seen had a beautiful green nebulous
>> trail. Another strange nebulous meteor that I see on rare occasions.
>>
>> Date Time (UT) FOV LM Obst.
>> 7/17/15 4:05-5:05 22.3+47 6.5 10%
>>
>> CAP ANT SCA SDA JPE PER PPS CAN SPO Total
>> 4 1 2 1 0 1 0 2
>> 7 18
>>
>>
>> Date Time (UT) FOV LM Obst.
>> 7/17/15 5:05-6:05 23.3+47 6.5 10%
>>
>> CAP ANT SCA SDA JPE PER PPS CAN SPO Total
>> 0 1 0 2 2 1 1 1
>> 8 16
>>
>> Magn. Distributions July 17, 2015 - 04:05-06:05 UT - LM=6.5, 10% Obst.
>>
>> 0 1 2 3 4 5 Total Ave.
>> CAP 0 0 1 1 1 1 4 3.5
>> ANT 0 1 0 1 0 0 2 2.0
>> SCA 0 0 0 2 0 0 2 3.0
>> SDA 1 0 0 2 0 0 3 2.0
>> JPE 0 0 1 0 1 0 2 3.0
>> PER 0 0 1 0 1 0 2 3.0
>> PPS 0 1 0 0 0 0 1 1.0
>> CAN 0 1 1 1 0 0 3 2.0
>> SPO 0 1 3 4 2 5 15 3.5
>>
>>
>> Starry Skies,
>> GWG
>> -------------- next part --------------
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>>
>> ------------------------------
>>
>> Message: 3
>> Date: Fri, 17 Jul 2015 16:47:52 -0700
>> From: jarnac <observe at jarnac.org>
>> Subject: (meteorobs) Possible Kappa Cygnid outburst
>> To: meteorobs at meteorobs.org
>> Message-ID:
>> <20150717234757.94D9393B455 at u15354731.onlinehome-server.com>
>> Content-Type: text/plain; charset="us-ascii"; format=flowed
>>
>> Dear friends,
>>
>> I know that it is way early for the maximum of the Kappa Cygnids (end
>> of the month), but on the evening of July 16/17 threre appeared to be
>> unusually intense activity. From our Adirondack astronomy
>> Retreat Ed Gordon counted more than thirty meteors, mostly Kappa
>> Cygnids, over a one to two hour time span. I was not observing
>> meteors at the timew but I noticed at least five meteors during the
>> night, of which one wss a bright Kappa Cygnid.
>>
>> David H. Levy
>>
>>
>> ---
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>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Sat, 18 Jul 2015 00:06:31 +0000
>> From: Michael Boschat <andromed at dal.ca>
>> Subject: Re: (meteorobs) Possible Kappa Cygnid outburst
>> To: Meteor science and meteor observing <meteorobs at meteorobs.org>
>> Message-ID:
>>
>> <BLUPR03MB21691FD48D1DDD2CE6494BCA5870 at BLUPR03MB216.namprd03.prod.outlook.com>
>>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi;
>>
>> Overcast here. but today between 1800-2000 UT had a few small
>> returns on the meteor radio at 77.251 MHz.
>>
>> 1800-1900 = 13
>> 1900-2000 = 14
>>
>>
>> Clear skies
>> ----------
>> Michael Boschat
>> Halifax Center - Royal Astronomical Society of Canada
>> Astronomy page: http://www.chebucto.ns.ca/~aa063
>>
>>
>> ------------------------------
>>
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