Active phenomena of the sun in February 1986
Abstract
Optical phenomena of solar activity in February 1986 are summarized. There appeared three active regions, NOAA AR4711, 4712, and 4713, and AR4711 and 4713 produced large flares.
- Publication:
-
Nagoya University Research Institute of Atmospherics Proceedings
- Pub Date:
- 1989
- Bibcode:
- 1989NURIA..36...17H
- Keywords:
-
- Solar Activity;
- Solar Flares;
- Sunspots;
- Solar Terrestrial Interactions;
- Sunspot Cycle;
- Synoptic Measurement