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Hull and East Riding

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Extra Information From Lecturers

Update: Following Ray Taylor’s talk on analysing meteor showers in December 2016, he has kindly sent us images showing 2016 data and a summary for early 2017…

RMAP_Rg streams ID - shows radiants with IDs of major streams

 


Summary: Meteors in January 2017 by Ray Taylor and his colleagues at Nemetode.org

OMAP streams - shows a solar system orbit plot of major streams. Note how the Earth (its orbit is marked by the blue dot)  is bombarded by interplanetary material throughout the year. The plot would be very cluttered if we added all data

Early Jan 2017                  (Skirlaugh)        

NE

NW

   Comments

a Hydrids

2

0


December Comae Berenicids

6

2


December alpha Draconids

15

10

Peaked 3rd Jan, All done by 6th

Geminids

3

1

First few days of month

Hydrids

2

3


Quadrantids

54

33

Peaked 3rd/4th Jan

sTaurids

3

0

First few days of month

Ursids

5

2

All done by end of first week

xi Ursae Majorids

2

0


Sporadics  

59

28


December 2018: Subject - December Alpha Draconids


From my North East camera at 2202.46UTC 19th of November.

Initial analysis suggests an early December Alpha Draconid with an Apparent Magnitude of -4.2; checking around Nemetode.org - this appears to be the first this year!

This particular Weak Meteor Shower usually starts around now and appears to have two peaks, the second taking place during the time of the Quadrantids in the first week of the New Year.

BUT! This may be an anomaly because the Radiant positions of both meteor showers are relatively close together so there may be mis-allocation by the analytical software.

Clear Skies       Ray

A first look at this year's Orionids

 “Thought you and HERAS members would be interested in this ‘early look’ at the 2018 data set for the Orionids.

Huge thanks to Alex Pratt for getting the data out so quickly.

Clear Skies       Ray

Many of us [Ed: members of Nematode] recorded good numbers of Orionid meteors during the past few weeks, the debris from comet 1P/Halley.

I've attached the ground map from 180 multi-station Orionids captured between September 24 and November 4. The trail map for the same interval shows how their radiant traverses from R to L above Orion. moving 0.7 degrees per day in RA and 0 degrees per day in Dec.

Unlike some showers that have a brief peak of activity, the Orionids can put on a good display for 2 or 3 nights. The second radiant plot is for the night of October 21/22, from 48 multi-station meteors. These give a radiant point of RA 95.4 (6h 22m) and Dec 15.4, at solar longitude 208.4 degrees. Their average geocentric velocity (Vg) was 65.7 km/s. As usual, our results agree very well with those of professional workers listed in the IAU MDC.

3 images below…

Nice data everyone!

Clear skies,    Alex.