| rightascension =20<sup>h</sup> 12<sup>m</sup> 07<sup>s</sup><ref name=simbad>{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=crescent+nebula&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id|title=NGC 6888|accessdate=2019-09-01|work=Simbad Astronomical Database|publisher=simbad.u-strasbg.fr}}</ref> | | rightascension =20<sup>h</sup> 12<sup>m</sup> 07<sup>s</sup><ref name=simbad>{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=crescent+nebula&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id|title=NGC 6888|accessdate=2019-09-01|work=Simbad Astronomical Database|publisher=simbad.u-strasbg.fr}}</ref> |