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(meteorobs) Observations Perseids 1997, 1999



Observations meteoric shower Perseid in night with 10 on August 11 1997.
Geographical longitude 48d05mE
Geographic latitude 54d19mN
The observations were hindered by a mist (Lm in neighbourhoods of a head
Draconis 5.7), and intermittent clouds in east. From 21:05 UT of a cloud in
a southern part of the sky.

Observers                           Direction
SH - Sergey Shanov    30 degrees to a north from zenith
IP - Ivan Purtov             30 degrees to a east from zenith
DB - Dmitriy Borodin    30 degrees to a south from zenith
Secretary: V. Gavriluk

AL - Angular length of a meteor
ZD - Distance from zenith up to middle of a meteor or flashout
DF - Flight direction of a meteor (0 - north, 3 - east, 6 - south, 9 - west)
DZ - Flight direction from zenith (0 - north, 3 - east, 6 - south, 9 - west)

Period 1   19:40 - 20:30 UT
Time UT,   AL, ZD, DF, DZ,   SH, IP, DB,   Shower,   Note
01  19:40  12  24   5.5   7                    +1.5  possible KCG, flash
02  19:43   5   60   6      7                              possible KCG
03  19:46   3   25   0      0    +4                      -
04  19:47   5   80   5      4                              PER
05  19:47  18  25   8      5.5                 +1     PER
06  19:49  35  10   9    11                    +2     PER
07  19:52  12  75 10.5 11.5 -1.5                  PER
08  19:52  12  32   7      8                    +5     PER
09  19:53   5   25   5      4             +4            possible KCG
10  19:56   2   25   1      1    +4                      -
11  19:56  25  30   7      8                    +1     PER, flash
12  20:04  35  60   8      7                    +2     PER
13  20:10  30  55   5      8                    +0.5   -
14  20:10   8   60   0      3.5                 +0.5  possible AQUAR
15  20:13  18   5    7.5   1                      0     PER
16  20:15  15  18   7.5   3                    +0.5 PER, flash
17  20:16   5   30 10.5   0    +3                     PER
18  20:20   5   60   5      3             +2            PER
19  20:21   7   40   2      1    +2.5                  possible KCG
20  20:24  12  45 11      1    +2                     possible AQUAR, slow
21  20:24  15  30   8      5.5                 +3     PER
22  20:26   4   10   7.5 11                    +4     PER
23  20:26   5   50 11    10    +2                     possible AQUAR
24  20:27  14  35   9      0    +2                     PER

Period 2   20:40 - 21:30 UT
Time UT,   AL, ZD, DF, DZ,   SH, IP, DB,   Shower,   Note
25  20:40  20  30   6.5  4.5                  +2.5  PER
26  20:46   5   25 10    11             +1             possible AQUAR
27  20:50  12  40 11.5   1.5 +4                     PER
28  20:57  25  65   5       4                     0      PER, flash
29  20:58   2   40   4       2             +3            PER
30  21:01   7   50   9     10    +3                     PER
31  21:01   8   25   9       0             +1            PER, track
32  21:03   8   25   9     11.5 +1                     PER
33  21:04  15  20   7.5    8.5                +2      PER
34  21:04  12   0    0        -                    +2.5   possible AQUAR
35  21:09   5   35   9       0    +3                      PER
36  21:09  12  30   8     10    - 1                      PER, track
37  21:09  10  30   8     10    +0.5                   PER, track
38  21:12  15  35   8       9    - 1                      PER, track
39  21:13  12  40 10     11    - 1                      PER, track
40  21:24  13  40 11       1.5 - 1                      PER, track
41  21:25   3   10   1       5.5          +4              possible AQUAR
42  21:26  10  50   9    10.5  - 1                      PER, track
43  21:27  10  60   9    10     +2                      PER, track
44  21:28   5   30   0       0       ?                      possible AQUAR
45  21:29   7   75   8.5    9.5 +2                      PER
-------------------------------

Observations meteoric shower Perseid in night with 10 on 11 and with 11 on
August 12 1999.
Geographical longitude 48d05mE
Geographic latitude 54d19mN
In the first night northern and east part of the sky was closed by clouds.
But in west and in the south of clouds was not, Lm in neighbourhoods of a
head Draconis 5.8.
August 11 we observed partial solar eclipse. In our point of observations
its value has made 61 %. Around of a maximum of eclipse the weakening of a
daylight was well noticeably, seemed unnatural. The major impression was
produced by numerous solar reflections of a lightbeam, which were
transparent through foliage and were well appreciable on white table...
Then, unfortunately, conditions of observations considerably have worsened,
the mist (Lm in neighbourhoods of a head Draconis 5.5) and clouds (look the
table of a cloudiness).

AL - Angular length of a meteor
ZD - Distance from zenith up to middle of a meteor or flashout
DF - Flight direction of a meteor (0 - north, 3 - east, 6 - south, 9 - west)
DZ - Flight direction from zenith (0 - north, 3 - east, 6 - south, 9 - west)

August 10/11

Observers                           Direction
SH - Sergey Shanov    30 degrees to a west from zenith
DK - Dmitriy Klykov       30 degrees to a south from zenith
Secretary: Tanya Shanova

Period 1   20:00 - 20:50 UT
Time UT,   AL, ZD, DF, DZ,   SH, DK, Colour, Shower,   Note
01  20:02  20  30    6      4               +1     orange  PER
02  20:02   7   35    7      8      +2              white  PER
03  20:05   7   25  10    10               +3     white possible AQUAR
04  20:05   3   17    7      7      +0.5           blue  PER
05  20:06  12  20    1      3               +3     white possible AQUAR
06  20:08  10  20    8    10.5  +3              white  PER
07  20:09   2   20    6.5   9      +2              white possible KCG, slow,
track
08  20:11  10  40    7.5   7.5     0              white  PER
09  20:20  10  70    7.5   7.5              0     red  PER
10  20:22   8   30    8      7.5              -1    white  PER
11  20:24   4     3    7      9.5   +3              white  PER
12  20:31   3   20    1    11      +4              white possible KCG, slow
13  20:35   6   60    5.5   5                +3    white   -
14  20:38  14    0  10.5   -                 +2    blue possible AQUAR
15  20:39  13  20    7.5   5        0              blue  PER
16  20:40   3   25    6      0      +4              white   -   slow
17  20:40   6   20  11    11      +0.5  +0.5 white possible KCG
18  20:44  23  30    6.5   4                 -1    red  PER, flash

August 11/12

Observers                           Direction
SH - Sergey Shanov    30 degrees to a north from zenith
IP - Ivan Purtov             30 degrees to a east from zenith
DB - Dmitriy Borodin    30 degrees to a south from zenith
DK - Dmitriy Klykov       30 degrees to a west from zenith
Secretary: Tanya Shanova

Period 1   19:00 - 19:50 UT
Time UT,   AL, ZD, DF, DZ,   SH, IP, DB, DK, Colour, Shower, Note
01  19:01   5   15   4.5   1    +0.5                          blue       -
02  19:01  13   0    7.5   -              +1   +0.5         yellow  PER
03  19:08  13  30   7      6                     +2.5         red      PER
04  19:14  45  60   5      3.5  -3     -4     -3            yellow PER, two
flashouts, track 5 sec.
05  19:17   5   25   3      2             +4                    white
possible KCG
06  19:17   7   32   6.5   6                     +1            white
possible PER
07  19:19   5   20   8      0.5 +1.5                          white   PER
08  19:24   8   65 10.5   0     -1                             yellow  PER,
track
09  19:34  20  40   7    10.5                            +2  yellow  PER
10  19:42   3   10   7      7                                  0  white
possible KCG
11  19:45  17  50   7.5   6                       0             white  PER
12  19:45  10  45   7      3             +1                     white  PER

Time UT, Observer, Cloudiness in percentages
19:00  SH  Clouds up to height of 35 degrees
19:00  DK  60%
19:03  SH  95%
19:03  IP    50%
19:05  IP    75%
19:05  DB  40%
19:10  DK  The sky without clouds
19:12  SH    55%
19:13  DB    10%
19:20  SH    30%
19:20  IP      40%
19:20  DB    10%
19:22  SH    In observable area of the sky the stars up to 2 values are
visible
19:22  DB, DK  Small mist
19:28  SH    40%
19:29  SH    85%
19:32  DK    20%
19:34  DK    40%
19:37  SH  100%
19:47  IP      90%
-------------------------------

Sergey Shanov
RUSSIA



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