Sun in h-alpha/calcium-H/Helium D3 (Spectroheliogram)
Taken by Richard Schrantz on September 18, 2025 @
Nicholasville, Kentucky, USA
Click photo for larger image
| |
Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
|
|
| More images
Details:
Here is the sun from this morning in h-alpha, calcium-H, and helium D3. 102mm f/7 spectroheliograph, ASI183mm camera. Calcium image stopped down to 72mm. Seeing good. Note coronal hole visible in helium image vs. SDO 211 A image.
Photographer's website:
No URL provided.
|
|
|
