|
Active Meteor Showers
By Pierre Martin
The following information is based according to data from the International
Meteor Organization.
| SHOWER |
ACTIVITY PERIOD |
MAXIMUM |
RADIANT POSITION AT MAXIMUM |
VELOCITY (K/SEC) |
ZHR |
| QUADRANTIDS |
JAN 1 - 5 |
JAN 4 |
15 20 +49 |
42 |
120 |
| LYRIDS |
APR 16 - 25 |
APR 22 |
18 04 +34 |
49 |
15 |
| ETA AQUARIDS |
APR 19 - MAY 28 |
MAY 6 |
22 32 -01 |
66 |
60 |
| JUNE BOOTIDS |
JUN 26 - 30 |
JUN 27 |
15 00 +47 |
18 |
VAR |
| PEGASIDS |
JUL 7 - 13 |
JUL 9 |
22 40 +15 |
70 |
3 |
| S.DELTA AQUARIDS |
JUL 12 - AUG 19 |
JUL 27 |
22 36 -16 |
41 |
20 |
| ALPHA CAPRICORNIDS |
JUL 3 - AUG 15 |
JUL 29 |
20 28 -10 |
23 |
4 |
| N.DELTA AQUARIDS |
JUL 15 - AUG 25 |
AUG 8 |
22 20 -05 |
42 |
4 |
| PERSEIDS |
JUL 17 - AUG 24 |
AUG 12 |
03 04 +58 |
59 |
100 |
| KAPPA CYGNIDS |
AUG 3 - 25 |
AUG 17 |
19 04 +59 |
25 |
3 |
| ALPHA AURIGIDS |
AUG 25 - SEP 5 |
AUG 31 |
05 36 +42 |
66 |
10 |
| DRACONIDS |
OCT 6 - 10 |
OCT 8 |
17 28 +54 |
20 |
VAR |
| ORIONIDS |
OCT 2 - NOV 7 |
OCT 21 |
06 20 +16 |
66 |
20 |
| S.TAURIDS |
OCT 1 - NOV 25 |
NOV 5 |
03 28 +13 |
27 |
5 |
| N.TAURIDS |
OCT 1 - NOV 25 |
NOV 12 |
03 52 +22 |
29 |
5 |
| LEONIDS |
NOV 14 - 21 |
NOV 17 |
10 12 +22 |
71 |
VAR |
| ALPHA MONOCEROTIDS |
NOV 15 - 25 |
NOV 21 |
07 48 +01 |
65 |
VAR |
| GEMINIDS |
DEC 7 - 17 |
DEC 13 |
07 28 +33 |
35 |
120 |
| URSIDS |
DEC 17 - 26 |
DEC 22 |
14 28 +76 |
33 |
10 |
Terms
ACTIVITY PERIOD: Period when some activity can be visually detected.
MAXIMUM: Expected date of maximum activity.
RADIANT POSITION: Radiant position (RA and decl (h m °) for the date of
maximum activity.
VELOCITY: Velocity in kilometers per second; 11-25 is considered slow, 25-50
is medium speed and 50-72 is swift.
ZHR: ZHR (Hourly Hourly Rates). Theoretical meteor rates possible from a
single observer under dark magn 6.5 skies, with the radiant lying at the
zenith. Best viewing time is usually in the early morning hours after
midnight. Please note that these hourly rates may vary from year to year. (var)
means variable activity that may be strong one year and totally abscent the
next. |