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Expanded infobox with details/references
| rightascension =17<sup>h</sup> 13<sup>m</sup> 44.211<sup>s</sup>
| rightascension =17<sup>h</sup> 13<sup>m</sup> 44.211<sup>s</sup>
| declination =-37° 06′ 15.94″
| declination =-37° 06′ 15.94″
| distance =3,800 ly
| distance =3,800 ly<ref name=constellation-guide>[http://www.constellation-guide.com/butterfly-nebula/ Butterfly nebula] from constellation-guide.com</ref>
| constellation =[[Scorpius]]
| constellation =[[Scorpius]]
| type =[[Planetary nebula]]
| type =[[Planetary nebula]]
| dimensions = 3'
| dimensions = >3'<ref name=constellation-guide/>
| magnitude =7.1
| magnitude =Apparent Mag: +7.1<ref name=constellation-guide/><br/>Absolute Mag: -3.0<ref name=constellation-guide/>
| redshift =
| redshift =
| radvelocity =
| radvelocity =
| propmotion =
| propmotion =
| parallax =
| parallax =0.855 mas<ref name=arxiv>Szyszka, c., Zijlstra, A. A., Walsh, J. R., ''The Expansion Proper Motions of the Planetary Nebula NGC 6302 from HST imaging'', 2011, [https://arxiv.org/abs/1105.3381 arXiv:1105.3381]</ref>
}}
}}
The '''Butterfly nebula''' (NGC 6302) is a [[planetary nebula]] in the [[constellation]] of [[Scorpius]].<ref name=constellation-guide>[http://www.constellation-guide.com/butterfly-nebula/ Butterfly nebula] from constellation-guide.com</ref> Emanating from the [[star]] at its centre are two enormous lobes of [[gas]] and [[dust]], giving it the appearance of a butterfly. Thought to have formed 1,900 years ago, it is also known as the Bug nebula.
The '''Butterfly nebula''' (NGC 6302) is a [[planetary nebula]] in the [[constellation]] of [[Scorpius]].<ref name=constellation-guide/> Emanating from the [[star]] at its centre are two enormous lobes of [[gas]] and [[dust]], giving it the appearance of a butterfly. Thought to have formed 1,900 years ago, it is also known as the Bug nebula.
==History==
==History==