The part of the Sun just above the photosphere. Thousands of miles thick, it is mostly hydrogen gas. It looks like a red ring during an eclipse. The corona is just above the chromosphere.
<AUR>.Sunspots
| Regions with Sunspots | |||
| Region | # of Spots | Mag Type | |
| 2882 | 01 | Alpha | |
| H-alpha Plages without Spots | |||
| Region | |||
| 2885 | |||
| Regions Due to Return 16 Oct to 18 Oct | |||
| Region | |||
| 2877 | |||
<AUR>.Alert
<AUR>.Alert.Subscriberlast message issued over 77hrs ago
Space Weather Message Code: WARK04
Serial Number: 3946
Issue Time: 2021 Oct 12 2109 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3945
Valid From: 2021 Oct 12 0003 UTC
Now Valid Until: 2021 Oct 13 0600 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Forecast Discussion
Weekly Highlights and Forecasts
Solar Weather Overview
Latest Space Weather Storm
<AUR>.DX-Cluster Statistics
Knowledge Database
Source: http://www.noaa.gov
