Borges, the blind librarian, helping out to manually cull the results, and select which frames, if any, go to stacking. The fog/haze helped, but the clouds… didn’t.
2025-01-25-0805 2-Sun-Ha 2025.01.25. disk 0 00 pipp lapl2 ap12291 reg1 ps4 mono
2025-01-25-0805 2-Sun-Ha 2025.01.25. disk 0 00 pipp lapl2 ap12291 reg1 ps4 color
manual culling
On 2025-01-12, I imaged the Sun in He I D3. Using my scripts to extract the weak signal, I got able to show features otherwise characteristic of the corona. I stacked a total of 72 scans, spanning between 2025-01-12-0741Z and 2025-01-12-0933Z. Basically, I imaged the fingerprint of the giant coronal hole.
The Helium I D3 line, unless one knows exactly what to look for, is elusive to put it mildly. Hence the secret. And the poet, Attila JÓZSEF warned us: a titkokat ne lesd meg. So let’s take the spectroheliograph and image the Sun ostinatamente. 78 scans went into this image on 2024-11-02.
