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Flickr & astrotags
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We've teamed up with photo-sharing site Flickr to form a vibrant group of astronomy photographers.
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Showcasing what’s going on, from pictures that have caught our eye to the latest astrotags.
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Long before Google Sky, Royal Observatory astronomers marked 40 million stars on a sky map.
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What are astrotags, how do you add them to photos and why should you bother?
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A brief guide to all the tags and what they mean.
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Astrometry concerns the measurement of the positions, motions, and brightness of celestial objects.
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We really want developers to get your hands on astrotags and see what it's possible to do with...