Today’s SUN (20231123) | LUNT152 & TV NP127
https://solarchatforum.com/viewtopic.php?t=43251
![](https://www.apaa.co.pt/wp-content/uploads/2023/11/solar_imaging_session_20231123-05-1024x388.jpg)
![](https://www.apaa.co.pt/wp-content/uploads/2023/11/solar_imaging_session_20231123-06-1024x386.jpg)
![](https://www.apaa.co.pt/wp-content/uploads/2023/11/solar_imaging_session_20231123-04-1024x405.jpg)
![](https://www.apaa.co.pt/wp-content/uploads/2023/11/solar_imaging_session_20231123-03-1024x333.jpg)
![](https://www.apaa.co.pt/wp-content/uploads/2023/11/solar_imaging_session_20231123-02-1024x435.jpg)
Sol’Ex Spectroheliograph | Baader 10×60 Vario Finder | ASI178MM
https://solarchatforum.com/viewtopic.php?t=43226
https://youtu.be/GbQ6XxW6qwI
Solar imaging session (20231118) | Pedro RE’
Sol’Ex Spectroheliograph | Baader 10×60 Vario Finder | ASI178MM
https://pedroreastrophotography.com/
DIGITAL IMAGE PROCESSING TUTORIALS | Pedro RE’
GraXpert – A fast and easy way to remove gradients
Now integrated in PixInsigth
https://pedroreastrophotography.com/
GraXpert is designed to remove gradients from astroimages. Gradients are gradual changes in brightness that are not part of the astrophoto but are caused by external interference.
Some causes can be light pollution, incorrect or missing flat correction, natural brightness gradients of the night sky, or peculiarities of the optics used (such as shading in the form of a vignette).
Color casts can also be removed, and it generally makes sense to reduce the amount of the sky background in the astrophoto. In short: A gradient removal is very useful, if not mandatory.
GraXpert is a freely available open-source software that was programmed exclusively for this purpose. It works as a stand-alone program, and now it is integrated in PixInsigth.
https://youtu.be/ayhBKprJljU
Solar imaging session (20231114) | Pedro RE’
Sol’Ex Spectroheliograph | FS60C F/5.9
https://pedroreastrophotography.com/
https://youtu.be/G9BUp5lcsrI
Solar imaging session (20231114) | Pedro RE’
TV NP127 F/5.2 | 4 lights
https://pedroreastrophotography.com/