Aurora & Space WeatherHome › Geomagnetic history › 1977
Geomagnetic activity in November 1977
Mean Ap9.9No. 767 of 1138
G1+ days6
G3+ days0
Max Ap4214 Nov 1977
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 13 Nov 1977 | 5o | 26 | G1 |
| 14 Nov 1977 | 6- | 42 | G2 |
| 15 Nov 1977 | 6- | 25 | G2 |
| 25 Nov 1977 | 5o | 15 | G1 |
| 26 Nov 1977 | 5+ | 19 | G1 |
| 27 Nov 1977 | 5o | 12 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| November 1976 | 8.9 | 4 | 0 |
| November 1977 | 9.9 | 6 | 0 |
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Mean Ap 9.9 in November 1977, No. 767 of 1138 months since 1932; 6 days reached G1 or higher.