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Kindle version is disappointing
on 27 March 2016
I must make it clear that I am talking about the Kindle version. The star charts section is made up of a series bit map images for the actual section of the heavens, plus a bit mapped textual table of luminosity and also a third section that is text based only. The text based section is not a problem, the bit mapped luminosity tables are readable, but the bit mapped star maps are very disappointing. The text used In the bit maps varies in size according to the importance of the object It describes. The text numbering for individual stars, which you need to refer to the aforementioned tables is mostly unreadable, due to the pixelation or artefacting produced by the graphics compression algorithm used. The intermediate sized text in the bit maps is readable but not pretty. To enlarge the star maps you tap the bitmap image and when it opens you can use two fingers to stretch it or move to an interesting location in the image. If you are a serious astronomer you will want to buy the physical book and not the e-book. I bought the kindle version a couple of years ago. My latest download was last summer to an I-pad. I previously had a Samsung note10. I also have kindle for PCs. The problem exists on all these platforms.