I captured the data for this image two years ago from home and have had a few goes at processing it. This is my best result so far though I'm still not over the moon about it. It's not a particularly crisp object and the distribution of Ha, Oiii and Sii seems to result in murky colours in typical narrowband palettes. I ended up basing the colour on a bi-colour Ha/Oiii combo with some subtle green additions from Sii.
NGC3199 is an unusual emission nebula created by the Wolf-Rayet star HD89358, described in one paper as an "interstellar snow plough" that has created a distorted bubble by moving through a uniform interstellar medium.
Data captured at St Lucia, 25 April to 15 May, 2014
Scope: Ceravolo C300 @ f/9 = 2760mm FL, Atlas focuser
Mount: AP900
Camera: U16M
Filters: Astrodon E series Gen 2 LRGB, 3nm HA, OIII, SII
Guiding: Lodestar / MMOAG
Image scale: 0.67 arcsec/pixel
Exposures: 19x1200s Ha, 14x1200s OIII, 16x1200s SII (16.3 hours)
Processing: PixInsight 1.8
Check that out!.. he he cool ...lots of nebulosity there. Always know a deep 3199 when the nebulosity forms a complete circle rather than just an arc, nice work colours?...wheel, they are 2 years old ..so not current dude, bit 2014's now ...nah, not bad
Check that out!.. he he cool ...lots of nebulosity there. Always know a deep 3199 when the nebulosity forms a complete circle rather than just an arc, nice work colours?...wheel, they are 2 years old ..so not current dude, bit 2014's now ...nah, not bad
Really nice Rick, I can see what you mean by many defined structures, just goes to show how energetic and turbulent the area is! Has some lovely colours though and is reminiscent of an airbrush painting in areas.
Well done, Rick. You've captured some truly faint extensions there.
I agree that it's a difficult object to present impressively because the object seems inherently soft and diffuse, and there's not much SII either. You've come up with a good answer.
Well done, Rick. You've captured some truly faint extensions there.
I agree that it's a difficult object to present impressively because the object seems inherently soft and diffuse, and there's not much SII either. Concentrating on the faint stuff that is there has done the trick.