The honest verdict on gear and tools.
Tested on real images, from a terrace near Basel. So you never waste your money or a clear night.
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What I have been testing
Solar Journal
Turn your solar photographs into a record of the changing Sun
An iPhone and iPad app that reads your own white-light photographs, counts the sunspots, and keeps your observing history where you can see it. Everything happens on your device.
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Your photographs, analysed locally
Import a short sequence and explore the annotated disc. The originals are never uploaded and never altered.
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Sunspots you can actually inspect
Open any spot to see an enlarged crop from your own photograph, or explore nearby spots as a group.
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Context, and your own history
Dated NOAA space-weather information alongside your measurements, and a trend view that keeps every session visible.
Gallery
Shot from a terrace near Basel
Bortle 5, a terrace with a view, and quite a lot of clouds. The data behind every image is available if you want to process it yourself.
One rule, never broken
If a product does not convince me, I will tell you. I have never softened a downside to protect a sponsor, and I am not going to start.