Greetings again all,
Fellow ACACers Neal, Shadow and Shade Brown joined me at Matanzas Inlet (MI) this morning for three more hours of monitoring the 2017 Orionid (ORI) meteor shower. We went from 3:15 to 6:15 a.m. all told, and I had results almost identical to the previous morning. The first hour I had 24 ORIs. I fell just short of the “magic” 30 per hour rate threshold on the ORIs during the second hour with 29. Then, unexpectedly, the ORI rate dropped in half and I had only 16 during the third hour. Most unusual! Here is my data:
Observed for radiants:
ORI: Orionids
STA: South Taurids
NTA: North Taurids
EGE: epsilon Geminids
LMI: Leonis Minorids
SPO: sporadics
Date: Oct., 20/21, 2017. Observer: Paul Jones, Location: north bank of Matanzas Inlet, Florida, 15 miles south of St. Augustine, Florida, Lat: 29.75 N, Long:81.24W, LM: 6.2, sky conditions: 10% cirrus haze, Facing: South.
0315 – 0415 EDT (0715 – 0815 UT), Teff: 1 hour, clear, no breaks
24 ORI: 0(1), +1(1), +2(6), +3(7), +4(6), +5(3)
5 STA: +1(1), +2(1), +3(2), +4(1)
1 NTA: +4(1)
2 EGE: +2(1) +3(1)
8 SPO: +2(1), +3(3), +4(2), +5(2)
40 total meteors
5 of the 24 ORIs, 1 of the STAs and 1 SPO left visible trains, most common colors were gold and yellow and some bluish tints in the brighter ORIs.
0415 – 0515 EDT (0815 – 0915 UT), Teff: 1 hour, clear, no breaks
29 ORI: -1(2), 0(2),+1(2), +2(5), +3(11), +4(6), +5(1)
4 STA: +1(1), +2(2), +3(1)
1 EGE: +3(1)
9 SPO: +2(2), +3(3), +4(3), +5
43 total meteors
7 of the 29 ORIs, 1 of the STAs and 1 SPOs left visible trains, most common colors were gold and yellow and bluish tints in the brighter ORIs and SPOs.
0515 – 0615 EDT (09315- 1015 UT), Teff: 1 hour, 20% clouds and twilight interference, no breaks
16 ORI: +1(1), +2(2), +3(6), +4(5), +5(2)
2 STA: +3(1), +4(1)
1 EGE: +3(1)
7 SPO: +2(1), +3(2), +4(3), +5(1)
26 total meteors
4 of the 16 ORIs, 1 of the STAs left visible trains, most common colors were gold and yellow.
Overall, the ORIs were much fainter this morning, but still very active until that mysterious third hour came along! It could be fatigue crept in on us or sky conditions were somewhat weaker, it was just a noticeable drop indeed! Oh well, it’s why we get out there to find out what is going on! I’ll be back at it again in the morning, clear skies permitting. I just can’t get enough… ;o).