(meteorobs) Lyrids from Belgium

Michel Vandeputte michelvandeputte at hotmail.com
Wed Apr 25 16:10:45 EDT 2007


Hi all, 

These are my Lyrid observations from last week. I was able to enjoy some good meteor activity under pretty good observing conditions during several observing nights. 

Please enjoy the results: 

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

Day: 18-19    Month: April    Year: 2007
Name: Michel Vandeputte    IMO code: VANMC
Observing place: Ellezelles    Country: Belgium
Coordinates: long 3.38 E    lat 50.43 N    Alt 120m 
Period: 22.42-02.42 UT
Field: south east
Method: tape recorder - counting 

Observed showers: 
Lyrids: alfa 268° delta 34°
Anthelion: alfa 222° delta 16°

Interval analyse (all times in UT) 

Period              Teff    F        Lm      LYR    ANT    SPOR
22.42 - 23.42    1,00    1.00    6,40     1        2        9
23.42 - 00.42    1,00    1.00    6,50     3        2        10
00.42 - 01.42    1,00    1.00    6,50     2        1        12
01.42 - 02.42    1,00    1.00    6,40     3        0        13

22.42 - 02.42    4,00                         9        5        44 = 58 meteors


Magnitude distributions

LYR    +1(1)+2(1)+3(1)+4(4)+5(2) N 9 Mean 3.56 N~: 1
ANT    +2(1)+3(1)+4(3) N 5 Mean 3.40
SPOR +2(5)+3(12)+4(20)+5(7) N 44 Mean 3.66 N~: 1

Remarks

Clear conditions, pretty cold. Active Lyrid shower; one nice +1 Lyrid at 0.25 UT with ~. 


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

Day: 20-21    Month: April    Year: 2007
Name: Michel Vandeputte    IMO code: VANMC
Observing place: Ellezelles    Country: Belgium
Coordinates: long 3.38 E    lat 50.43 N    Alt 120m 
Period: 23.05 - 03.05 UT
Field: south east
Method: tape recorder - counting 

Observed showers: 
Lyrids: alfa 270° delta 34°
Anthelion: alfa 223° delta -16°

Interval analyse (all times in UT) 

Period              Teff    F        Lm      LYR    ANT    SPOR
23.05-00.05    1,00    1.00    6,50        3        1        7
00.05-01.05    1,00    1,00    6,50        4        0        8
01.05-02.05    1,00    1,00    6,60        7        0        14
02.05-03.05    1,00    1.00    6,55        4        0        11

23.05-03.05    4,00                            18       1        40 = 59 meteors


Magnitude distributions

LYR    +0(1)+3(5)+4(10)+5(2) N 18 Mean 3.61 N~: 0
ANT    +3(1) N 1 Mean 3.00
SPOR +2(8)+3(8)+4(16)+5(8) N 40 Mean 3.60 N~: 0

Remarks

increasing Lyrid meteor activity. Clear conditions. 

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

Day: 22   Month: April    Year: 2007
Name: Michel Vandeputte    IMO code: VANMC
Observing place: Ellezelles    Country: Belgium
Coordinates: long 3.38 E    lat 50.43 N    Alt 120m 
Period: 01:05-03:05 UT
Field: south east
Method: tape recorder - counting 

Observed showers: 
Lyrids: alfa 271° delta 34°
Anthelion: alfa 224° delta 34°

Interval analyse (all times in UT) 

Period              Teff    F        Lm      LYR    ANT    SPOR
01.05-02.05    1,00    1.00    6,60        13        0        5
02.05-03.05    1,00    1,00    6,53        16        0        11

01.05-03.05    2,00                            29        0        16


Magnitude distributions

LYR    -3(1)+0(1)+1(2)+2(1)+3(9)+4(10)+5(5) N 29 Mean 3.21 N~: 2
SPOR +2(2)+3(2)+4(8)+5(4) N 16 Mean 3,87 N~: 0

Remarks

Clear skies after 1 UT. Increasing Lyrid activity before dawn. Many weak meteors; but also a bright -3 at 2.05UT. 


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

Day: 22-23    Month: April    Year: 2007
Name: Michel Vandeputte    IMO code: VANMC
Observing place: Ellezelles    Country: Belgium
Coordinates: long 3.38 E    lat 50.43 N    Alt 120m 
Period: 22.30 - 03.10 UT
Field: south east
Method: tape recorder - counting 

Observed showers: 
Lyrids: alfa 271° delta 34°
Anthelion: alfa 225° delta -16°
Eta Aquarids: alfa 324° delta -7°

Interval analyse (all times in UT) 

Period              Teff    F        Lm      LYR    ANT    ETA    SPOR
22.30-23.00    0,50    1,00    6,20        8        0        0        3
23.00-23.30    0,50    1,00    6,20        3        0        0        2
23.30-00.00    0,50    1,00    6,30        6        0        0        1
00.00-00.30    0,50    1,00    6,30        9        0        0        1
00.30-01.00    0,50    1,00    6,40        4        1        0        3
01.00-01.30    0,50    1,00    6,40        7        0        0        3
01.30-02.00    0,50    1,00    6,60        6        0        0        1
02.25-03.10    0,75    1,00    6,42        8        0        2        12

22.30-03.10    4,25                            51       1        2        26 = 80

Magnitude distributions

LYR    -3(1)-1(2)+0(1)+1(3)+2(10)+3(16)+4(13)+5(5) N 51 Mean 2,80 N~: 9
ANT    +4(1) N 5 Mean 4,00
ETA    +2(1)+4(1) N 2 Mean 3,00 N~: 2
SPOR -8(1)+1(1)+2(1)+3(4)+4(17)+5(2) N 26 Mean 3.58 N~: 1

Remarks

-Lyrid maximum night. Nice rates around local midnight. Decreasing activity before dawn. 
-Meteor (sporadic or possible Lyrid) with very bright terminal flare at 2.30 UT in the north.  
I- observed two possible earthgrazing Eta Aquarids just before dawn (after radiant check this seems 
to be correct). 
    
   
Long trains,

Michel Vandeputte.           


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