(meteorobs) Meteor Obs. 9/12/15 - Mathias, WVa

[george]

         Screech Owl Hill Observatory,  Mountain Meadows  
                  Mathias, West Virginia - Sept. 12, 2015  

Conditions were good this morning, so I decided to do more meteor
observing from 4:16 to 6:16 UT.   There were no meteors that were 
brighter than 1st magnitude. There was a good showing for the SPE
meteors, and the September Alpha Triangulids (SAT), which don’t 
seem to be annual, but periodic, with a period of 5 or 6 years according
to Gary W. Kronk, and I agree. They last put on a fair showing in 2009.
Last year the moon was nearly Full for this date; so I didn’t observe.

They seem to be medium-fast meteors, and possibly part of a complex.
A casual meteor was seen from Alpha Aries earlier, and another from Beta
Triangulii (BTR) the first hour, but I counted it as a Sporadic.  Other years 
I saw a few BTR meteors. I first noticed the BTR meteors back in 1994, but 
didn’t include them in my totals separately.  On September 11/12, 1998 the 
Japanese meteor observer Osada Kazuhiro plotted 9 meteors from the BTR
area from 14:15 to 16:30 UT, according to the Minor Meteor Shower Circular 
#57, from Japan.  I think visual, radar, and visual meteor observers should 
look for meteors from this region from last night and tonight.  

Date     Time (UT)   LM   %Obst.     FOV   
9/12/15  4:16-5:16    6.5       0%     1.3+60   
STA  SAT  SIC  SPE  ORI  SLY  SPO  Total  
  2       2      1      3       1       1      7        17

Date     Time (UT)   LM   %Obst.     FOV   
9/12/15  5:16-6:16    6.4       5%     2.3+60   
STA  SAT  SIC  SPE  ORI  SLY  SPO  Total  
  2       3      1      3       1       1      9        20

Magn. Distributions Sept. 12, 2015 - 04:16-06:16 UT - LM=6.45 
        1   2   3   4   5   Total   Ave.
STA  1   0   2   0   1     4      3.0
SAT  1   1   2   0   1     5      2.8
SIC   0   0   1   1   0     2      3.5
SPE  2   0   1   1   2     8      3.2
ORI   1   0   1   0   0     2      2.0
SLY   1   0   0   1   0     2      2.5
SPO  3   2   3   3   5   16      3.3

Starry Skies,
GWG