Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains: 
Sun with Departing Sunspot, 





    
        

            Jarkko K. Laukkanen

Sun with Departing Sunspot

Technical card

Resolution: 2200x2200

Locations: Kotiobservatorio, Rauma, Satakunta, Finland

Data source: Backyard

Description

Afternoon was warm with very thin upper-atmosphere clouds on the sky. AR2741 was resolved easily, and I could see three separate umbras within the common penumbra. However, strong thermal instability of the air left its mark to the final image despite stacking 44 frames (some vertical artefacts in the right half of the image).

Comments

Author

JKLaukkanen
Jarkko K. Laukkanen
License: None (All rights reserved)
180
Like

Histogram

Sun with Departing Sunspot, 





    
        

            Jarkko K. Laukkanen