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M45final2015.jpg
M 45 and associated Nebulosity1126 viewsMessier 45, commonly known as the Pleiades, is an open cluster found in the constellation Taurus. Messier 45 is surrounded by a dusty reflection nebula, which accounts for its blue coloration, along with some pinkish-red coloration due to an ionized gas component. The small 17.3 magnitude galaxy PGC 13696 can be seen to the right of the star Electra (17 Tau), which is the bright star to the right of center.
The data was previously obtained on the nights of November 1st, 2nd, and 3rd, 2013 with a OSC SBIG STF-8300c camera and Takahashi E-130D f/3.3 Astrograph on a Paramount (Mayhill, NM). Total integration time was 4 hr 20 min (26 x 10 min lights @ -20 degrees C; 20 darks; 64 flats, 64 bias). Calibrated, registered, integrated, and processed in PixInsight 1.8.3.1123.
Some comments on processing: The calibrated, registered, and integrated OSC image was duplicated and the R, G, and B channels extracted. The R, G, and B channels were combined with the Integration Tool to prepare a synthetic luminance (SynL). Dynamic Background Extraction ( DBE) and Deconvolution applied to the SynL image. DBE, Background Neutralization, and Color Calibration was applied to the original RGB image. Both the RGB and SynL images were stretched (Masked Stretch tool). The luminance (“lightness” using L*a*b*) was extracted from the RGB image and the Linear Fit tool was used to match the stretch of the luminance to the SynL channel (SynL as reference). The fitted luminance was added back to the RGB image using the Channel Combination tool in L*a*b* mode. The SynLRGB image was made using LRGB Combine tool. Further processing included noise reduction, multiscale processing to bring out faint structure, color saturation, sharpening, and contrast enhancement.

(2 votes)
IC1848_Soul_Nebula_sRGB.jpg
The Soul Nebula 711 viewsThe emission nebula Sharpless 2-199 and the open cluster IC 1848 in the constellation Cassiopeia are commonly referred to as the soul nebula. The emission nebula is a massive star-forming region. The image was a total combined exposure of 8 hr 45 min taken over 6 nights (Aug and Oct 2014) in Mayhill, NM (35 x 900 sec lights at -20 degrees, dithered; 35 darks, 128 bias, 128 flats); Takahashi Epsilon 180 f/2.8 astrograph; Paramount ME; SBIG STF 8300c; guided with a ST-i camera and an Astro-Physics/Baader guider system; acquisition with MaxIm DL 6; Images calibrated, aligned, integrated, and processed in PixInsight 1.8.4 using a Synthetic Luminance and Multiscale Processing.
(3 votes)
CrescentNebula.jpg
The Crescent Nebula in Cygnus715 viewsThe Crescent Nebula (NGC 6888) is an emission nebula found in the constellation Cygnus. A leading hypothesis suggests that the strong stellar winds from the central Wolf-Rayet star collides with the stars outer atmospheric envelope ejected in a previous evolutionary phase, which energizes the nebula and leads to the observed structure. This H alpha image is a total of 5 hours of exposure taken with a Takahashi CCA-250 f/5 astrograph and QSI683wsg camera (Astrodon 5 nm Ha filter) on a Paramount ME; August 11th , 13th 2015 in Mayhill, NM (15 x 1200 sec lights @ -20o C; 21 darks; 126 bias; 128 flats) Image acquisition MaxIm DL 6.08; Calibration, alignment, integration, and processing in PixInsight 1.8.4.1107 Ripley (x64).
(2 votes)
IC_405_sRGB.jpg
The Flaming Star Nebula 706 viewsThe Flaming Star Nebula, IC 405 or Caldwell 31, is found in the constellation Auriga. IC 405 is both an emission and reflection nebula that is associated with the star AE Aurigae. The image was taken using a Takahashi Epsilon 130D f/3.3 Astrograph and a SBIG STF8300c CCD camera (Paramount ME) on the nights of Nov 6th, 8th, 9th, 2013 in Mayhill, NM. Total integration time was 5 hrs 40 min (34 x 10 min lights at -20 degrees C; 20 darks; 64 lights; 64 bias). Sub-frames were calibrated, registered, integrated, and processed in PixInsight 1.8.4.1170 Ripley (x64).
(2 votes)
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