Cycle solar imagery wavelengths to build intuition¶
The Solar And Lunar panel in the HF Propagation Dashboard displays a live solar image. Clicking the image cycles through five wavelength views, each revealing different solar features. Use this to develop a feel for what the sun is doing and how it relates to current propagation conditions.
Locate the Solar And Lunar panel in the lower section of the dialog. The image label below the solar image shows the current wavelength — the default is Corona (193Å).
Click the solar image once. The view advances to the next wavelength in the sequence.
Continue clicking to cycle through all five wavelengths in order:
Position
Label
1
Corona (193Å)
2
Chromosphere (304Å)
3
Quiet Corona (171Å)
4
Flaring (94Å)
5
Visible (HMI)
Stop clicking when the label below the image shows the wavelength you want to study.
Displays a live solar image. Each click advances to the next wavelength. Cycles back to Corona (193Å) after the last entry. Default view is Corona (193Å).
What To Look For
Displays rotating plain-language notes explaining what to observe in the currently shown solar image. Updates automatically as you cycle wavelengths.
Read the What To Look For panel alongside each image. It provides plain-language guidance matched to the current solar view, which helps you connect visual features to propagation effects.
The Flaring (94Å) view highlights high-temperature plasma associated with flare activity. Cross-reference it with the X-RAY metric card to see whether any visible flare regions are producing elevated X-ray flux.
No radio connection is required to use this feature.