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Situated in the [[constellation]] of [[Ophiuchus]], the nebula is thought to be located some 13,000 [[light year]]s away.<ref name=spitzer/> This makes the remnant's apparent size of 5.0 x 5.0 arcminutes correspond to a physical size of around 14 ly. The nebula is expanding rapdily at 2,000 km/s. It is believed the nebula reached a peak apparent [[star magnitude]] of -2.2.<ref name=mag/> Today the nebula has a magnitude of +19.<ref name=seds/> The [[supernova]] created a shockwave, the effects of which can be seen in the remaining nebula today.

Situated in the [[constellation]] of [[Ophiuchus]], the nebula is thought to be located some 13,000 [[light year]]s away.<ref name=spitzer/> This makes the remnant's apparent size of 5.0 x 5.0 arcminutes correspond to a physical size of around 14 ly. The nebula is expanding rapdily at 2,000 km/s. It is believed the nebula reached a peak apparent [[star magnitude]] of -2.2.<ref name=mag/> Today the nebula has a magnitude of +19.<ref name=seds/> The [[supernova]] created a shockwave, the effects of which can be seen in the remaining nebula today.

The remnant has been studied using [[NASA]'s [[Hubble Space Telescope]], [[Chandra|X-ray observatory]] and its [[Spitzer space telescope]]. The [[x-ray]] data collected by Chandra has revealed areas containing very [[energy|energetic]] [[subatomic particle|particles]] and extremely hot [[gas]].<ref name=spitzer/> It is thought these x-rays are generated by high energy [[electron]]s. These were created by the shockwave the [[supernova]] produced. Lower energy x-rays are also emitted from a shell in the heart of the nebula.<ref name=spitzer/>

The remnant has been studied using [[NASA]]'s [[Hubble Space Telescope]], [[Chandra|X-ray observatory]] and its [[Spitzer space telescope]]. The [[x-ray]] data collected by Chandra has revealed areas containing very [[energy|energetic]] [[subatomic particle|particles]] and extremely hot [[gas]].<ref name=spitzer/> It is thought these x-rays are generated by high energy [[electron]]s. These were created by the shockwave the [[supernova]] produced. Lower energy x-rays are also emitted from a shell in the heart of the nebula.<ref name=spitzer/>

Observations in the [[visible light|optical]] regions of the [[electromagnetic spectrum]] have revealed where the shockwave hits high [[density]] regions of gas.<ref name=spitzer/> After the shock wave passes, these denser regions form bright knots and filaments. [[Infrared]] images of the nebula have shown microscopic [[dust]] particles that have been heated by the shockwave and brightest where in the knots and filaments.

Observations in the [[visible light|optical]] regions of the [[electromagnetic spectrum]] have revealed where the shockwave hits high [[density]] regions of gas.<ref name=spitzer/> After the shock wave passes, these denser regions form bright knots and filaments. [[Infrared]] images of the nebula have shown microscopic [[dust]] particles that have been heated by the shockwave and brightest where in the knots and filaments.