Astro panel is the best plug-in for Adobe Photoshop CC to accelerate the post production of digital astronomical and landscape images.
Make sure you have extracted all the files from the zip archive into a folder. If you have Windows run the program as an Administrator. Alternatively, try another Extension Manager, such as ZXPInstaller.
Make sure you have a compatible version of Photoshop among those listed (CC2015, CC2015.5, CC2017, CC2018, CC2019).
To find out, just go to Help -> System Information and read the first line Adobe Photoshop version: ...; if you notice that the installed version is lower than the CC 2015 version you need to upgrade to a newer version.
Open the zip file and copy only the folder named it.angeloperrone.astropanel into one of these folders, depending on your operating system:
Win: C:\Program Files (x86)\Common Files\Adobe\CEP\extensions
Mac: /Library/Application Support/Adobe/CEP/extensions
After this, open Photoshop and check that the panel is present on Window -> Extensions.
If the registration email is not recognized, please log in to https://angeloperrone.it/mio-account/ and download the new update (Version 3.2) from the download area.
At this address you will find our Facebook group to receive technical support and publish your photos.
If you have not found the solution, please contact us.