description Box Nebula (NGC 6309) Overview
The Box Nebula, formally designated as NGC 6309, is a planetary nebula located in the equatorial constellation of Ophiuchus. It was discovered by the German astronomer Wilhelm Tempel in the 19th century and is distinguished by its unusual, somewhat rectangular or bipolar structure. When viewed through moderate-sized telescopes, the nebula's central star illuminates the surrounding gas, creating a shape that vaguely resembles a box. It remains a popular target for amateur astronomical observation due to its distinct morphology and relatively accessible location in the night sky.
help Box Nebula (NGC 6309) FAQ
Why is NGC 6309 called the Box Nebula?
NGC 6309 is called the Box Nebula because its visible shape looks somewhat rectangular. Its structure is also described as bipolar, with material extending in two opposing directions.
Where can I find the Box Nebula in the sky?
The Box Nebula is located in Ophiuchus, an equatorial constellation. It is formally catalogued as NGC 6309.
Who discovered the Box Nebula?
German astronomer Wilhelm Tempel discovered the object in the 19th century. Astronomers later catalogued it under the designation NGC 6309.
Is the Box Nebula a planetary nebula?
Yes, NGC 6309 is a planetary nebula. Despite the name, a planetary nebula is the glowing shell of gas expelled by a dying star, not a planet-forming disk.
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