| 11. | It covers 0.25 square degrees, making it also the largest planetary nebula as seen from Earth.
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| 12. | It is the second smallest of the modern constellations ( after Crux ), spanning only 72 square degrees.
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| 13. | It had a maximum nightly scan area of about 1, 000 square degrees ( covered four times ).
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| 14. | The proposed ULTRASAT satellite will observe a field of more than 200 square degrees continuously in the ultraviolet range.
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| 15. | It has an area of approximately 0.2 square degrees, the same size as the full Moon.
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| 16. | The survey is performed with a 12K?K, 7.8 square degree first light on 13 December 2008.
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| 17. | "' Hydra "'is the largest of the 88 modern constellations, measuring 1303 square degrees.
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| 18. | The first of these is a cataloging patrol instrument with a mosaic 16 square degree field of view down to 16 magnitude.
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| 19. | The GCS ( Galactic ) covers an area of 1400 square degrees in JHK to a depth of K = 18.7.
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| 20. | This feed includes 188 individual receivers, to greatly extend the Field of View of an ASKAP 12m dish to 30 square degrees.
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