Android
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Stars and Planets 3.1.8 3dgalaxymap.com
skyportal.png
SkyPortal 3.4.4.0 Celestron
starlight-explore-the-stars.png
Starlight – Explore the Stars 2.0.6 ION6 LLC
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The Sky by Redshift: Astronomy 1.1.2 USM
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Sky Tonight – Star Gazer Guide 1.6.1 Vito Technology
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SkyWiki – the world of astrono 0.8.18 Bluestreak Labs
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Sky Academy: Learn Astronomy 3.0.1 Dong Digital
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Sky Map Varies with device Sky Map Devs
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NASA 2.05 NASA 
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SkEye | Astronomy Varies with device Harshad RJ