Sun AR2673-4
Taken by Giorgio Rizzarelli on September 4, 2017 @
Trieste, Italy
Click photo for larger image
| |
Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
|
|
| More images
Details:
Interesting seeing two such monster active regions (and in equatorial zone) in a year distant from the solar maximum. The main sunspot of each region was visible in eclipse glasses.
AR2673 grew 10 times in a single day. The last pic (H-alpha) reveals it's quite active, probably with a flare.
North is up in all pics.
DETAILS:
Pics1&2: C8 @ f/6 + Astrosolar + Canon600D (wide) & iNova PLB-C2 (details, 2x1000 frames each processed in Registax).
Pic3: Lunt60 H-alpha PT + Canon600D.
Conditions: Variable clouds and seeing.
Refined and colorized in Photoshop.
Photographer's website:
No URL provided.
|
|
|
