BBC Sky at Night

DEEP-SKY TOUR

1 NGC 6790

quila, the Eagle, is marked by mag. +3.3 Delta (δ) Aquilae, which is a good place to start our tour. The planetary nebula NGC 6790 is located 1.6° south and 0.6° west of mag. +3.3 Delta (δ) Aquilae. It’s tiny, with an apparent size of 4 x 3 arcseconds, which is similar to the apparent size of Uranus. At this size, the 19,000 lightyear-distant planetary won’t show much

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