Wolf-Rayet (6 of these)
Super-massive, super-hot, shedding atmosphere via light-driven stellar wind.
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RCW 104, a Wolf-Rayett nebula, in H-alpha. 5 hrs in 1hr subs. Aspen CG16M on 20 inch PlaneWave.
RCW 104, a Wolf-Rayett nebula, in H-alpha. 5 hrs in 1hr subs. Aspen CG16M on 20 inch PlaneWave.
![Herschel's Ring is a nebula produced by the stellar wind from a super-hot Wolf-Rayet star ploughing into pre-existing medium.<br />
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Red: [SII] 10hrs, Green: H-alpha 5hrs, Blue: [OIII] 6hrs, all in 1hr 1x1 subs..<br />
Field 36'arc, North up. Aspen CG16M on 20" PlaneWave.<br />
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As befits a WR rather than an SNR, there was very little SII in this image,](https://photos.smugmug.com/Category/Wolf-Rayet/i-mTVpZF6/0/dc9d713d/Ti/Hershel%27s%20Ring%20Ha%205%20OIII%206%20SII%2010hrs-Ti.jpg)
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