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305 files in 32 albums and 1 categories with 3 comments viewed 356016 times

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SHOcombineFinal.jpg
Narrowband image of the Crescent Nebula in Cygnus843 viewsThe Crescent Nebula (NGC 6888) is found in the constellation Cygnus, whose emission is powered by strong stellar winds from a Wolf-Rayet star colliding with previously expelled outer envelopes of the stars atmosphere. This narrow band image is a combination of 5 hrs of H alpha data (Astrodon 5 nm Gen 2 filter) and 5 hrs 20 m of O[III] data (Astrodon 3 nm Gen 2 filter). Taken with a Takahashi CCA-250 f/5 astrograph and QSI683wsg camera on a Paramount ME; August 11th , 13th and Sept 14th - 17th, 2015 in Mayhill, NM (Ha, 15 x 1200 sec lights @ -20o C; O[III], 16 x 1200 sec lights @ -20o C 21 darks; 126 bias; 128 flats) Image acquisition with MaxIm DL 6.08; Calibrated, aligned, integrated, and processed in PixInsight 1.8.4.1185 Ripley (x64); Colors assigned ( Red = Ha, Green = 15% Ha + 85% O[III], Blue = O[III] ) and combined using SHO-AIP script.
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M171470 viewsAn image of Messier 17, commonly call the Omega, Horseshoe, or Swan Nebula, in the constellation Sagittarius. There are over 600 stars within this gaseous nebula. The image was taken with a Canon 20Da DSLR at ISO 800 (26 x 5 min light exposures, 35 x 5 min Darks, and 64 lights) and a Takahashi E-180 astrograph. Processed and calibrated using Images Plus 3.80 and Adobe Photoshop CS5.
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Comet Catalina878 viewsComet Catalina as of the morning of December 17, 2015. Image taken with an ES127mm refractor and a Canon 60Da camera.
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Polaris Star Trails1197 viewsMy first attempt at this. I will upload a new one later. This is a 10min shot.
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Bubble Nebula1096 viewsNGC 7635, also called the Bubble Nebula, is an emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star. The distance is 11,000 light years.
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Andromeda Galaxy1450 viewsTwo 30-minute exposures stacked of the Andromeda Galaxy (M31) taken with a Takahashi Epsilon 180 f2.8 and a Canon 20Da DSLR.
IC5070.jpg
IC5070 (Pelican Nebula)881 viewsIC5070 (Pelican Nebula) located in the constellation of Cygnus is part of a large H-II cloud. The hydrogen gas is excited by the energy originating from nearby stars, and then emits its own light in the red wavelength of hydrogen. The image consist of 4 hours of exposures taken with a Canon 60Da camera, ES 127mm refractor with .8 reducer, mounted on a Celestron CGEM mount. The image was stacked with Nebulosity 4 and processed with Pixinsight 1.8.
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M 45 and associated Nebulosity1110 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.

Last additions
RGBfaintstructureFinalSmall.jpg
A Spiral Galaxy in Leo94 viewsMessier 66, aka M66 or NGC 3627, is a spiral galaxy (semi-barred) found in the constellation Leo. M66 belongs to a group of galaxies including M65 and NGC 3628 known as the Leo Triplet. In the past, it is likely that M66 that encountered NGC 3628. M66 lies around 31 to 33.5 million light-years from us. Image is a total of 10 hr 40 min combined exposure taken with a Takahashi CCA-250 f/5 astrograph with a QSI683wsg CCD camera mounted on a Paramount ME on the nights of 28, 29 March, 3, 29 May 2019 and 15, 26 April 2020 in Mayhill, NM (19 x 1200 sec Lum; 4 x 1200 sec R; 5 x 1200 sec G; 4 x 1200 sec B all at -20 degrees C.; 128 Bias; 22 Darks; 128 Flats for LRGB, respectively). Processed in PixInsight 1.8.8-7 Ripley (x64).Apr 10, 2021
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The Ring Nebula in the Constellation Lyra116 viewsM57, the ring nebula, is found in the constellation Lyra. M57 is a planetary nebula, which is an expanding shell of gas ejected from a star in the later stages of its evolution. The image captured the outer halo structure of M57 as well as the galaxy IC 1296 (see annotated image on the Facebook page). Image is a total of 9 hr 20 min exposure taken through a 12.5” RCOS f/9 astrograph at f/6 (Astro-Physics CCDT67 reducer) with a SBIG STF8300m CCD camera on a Paramount ME on the nights of 18, 19, 22 May 17, 19 June 2020 in Mayhill, NM (13 x 1200 s lights, 5 x 1200 s blue, 5 x 1200 s red, 5 x 1200 s green all at -15 degrees C). Processed in PixInsight 1.8.8-6 Ripley (x64).
Mar 17, 2021
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Jan 2019 lunar eclipse567 viewsJanuary 20, 2019 lunar eclipse taken with Borg 71FL refractor and Canon 1000D DSLR on a Vixen alt-az mount. Single exposure 0.8 sec, ISO 400Jan 22, 2019
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The Perseus Cluster of Galaxies614 viewsThis image of the Perseus cluster of galaxies, also known as Abell 426, is centered on NGC 1275. NGC 1275 is a giant elliptical galaxy, which is a radio source and x-ray emitter. Abell 426 is part of the Pisces-Perseus supercluster, which contains over a thousand galaxies. The image is a total of 9 hrs exposure with a Takahashi CCA-250 f/5 astrograph and a QSI683wsg camera (Astrodon Gen2 filters) on a Paramount ME taken on the nights of 7 Nov, 3, 13 Dec 2018 in Mayhill, NM (18 x 1200 sec lights; 3 x 1200 sec R, G, and B at -20 degrees; 24 darks; 128 flats; 128 bias). Processed with PixInsight 1.8.5.1353 Ripley (x64).Jan 18, 2019
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Open Cluster in Cassiopeia 569 viewsThe open cluster NGC 663 is found in the constellation Cassiopeia. NGC 663 contains a significant number of Be stars (spectral class B stars showing emission lines in their spectra). The distance from us is on the order of 2,100 parsecs (6850 light years). The image is a total of 5 hrs 20 min exposure taken with a 12.5” RCOS f/9 @ f/6 (Astro-Physics CCDT67) and SBIG STF8300m camera on a Paramount ME in Mayhill, NM on the nights of 28 Nov and 3 Dec, 2018 (6 x 1200 sec R; 5 x 1200 sec G & B; 24 darks; 128 bias; 128 flats). Processed in PixInsight 1.8.5.1353 Ripley (x64).Jan 18, 2019
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A Large Emission Nebula in Cassiopeia619 viewsNGC 281 is a H II emission nebula in Cassiopeia containing the open cluster IC 1590, which powers the ionization of the hydrogen gas. Large dust filaments as well as Bok globules, which may be the site of future star formation, can be seen. The image is a total of 5 hrs 20 min exposure in H alpha light. Image taken with a Takahashi CCA250 astrograph and QSI683wsg camera on a Paramount ME on the nights of 13, 15 Dec, 16 Nov 2018 in Mayhill, NM (16 x 1200 sec lights @ -20 degrees C. Astrodon H alpha filter 5 nm bandwidth; 24 darks; 128 bias; 128 flats). Processed with PixInsight 1.8.5.1353 Ripley (x64). Oct 19, 2018
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An Edge-On Spiral Galaxy in Coma Berenices622 viewsNGC 4565, sometimes referred to as the Needle Galaxy, is an edge-on galaxy in the constellation Coma Berenices. One can see the galaxy's yellowish central core, which is divided by obscuring dust lanes running the length of the equatorial plane. Total exposure was 10 hrs 20 min taken with a Takahashi CCA-250 f/5 astrograph and QSI683wsg CCD camera (Astrodon Gen2 filters) on a Paramount ME in Mayhill, NM on the nights of 8, 15, 16 May; 17, 18 June 2018 ( 21 x 1200 sec lights; 4 x 1200 sec R; 3 x 1200 sec G; 3 x 1200 sec B all @ -20 degrees C; 24 darks; 128 bias; 128 flats for each channel). Processed in PixInsight 1.8.5.1353 Ripley (x 64). An annotated image can be found on the Amateur Astronomers facebook page https://www.facebook.com/AmateurAstronomersGroup Sep 07, 2018
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The Whale Galaxy in Canes Venatici652 viewsNGC 4631 is found in the constellation Canes Venatici. The wedge-shape of this galaxy gives rise to its nickname, the Whale Galaxy. The starburst regions of this galaxy can be seen in the photo, which are due to intensive star formation. Tidal interactions of NGC 4627, which is seen just above NGC 4631, has been suggested as one of the reasons for the active core of NGC 4631 (as well as tidal interactions with other nearby galaxies). The small edge-on galaxy at the top of the image is PGC 3794315 (NASA Extragalactic Database). Total of 5 hr 40 min exposure taken with an SBIG STF8300c CCD camera and a 12.5 inch RCOS f/9 astrograph operating at f/6 (Astro-Physics CCDT067 reducer) mounted on a Paramount ME on the nights of 8, 15, 16 May 2018 in Mayhill, New Mexico (17 x 1200 sec Lights @ -15 degrees C; 15 darks; 128 bias; 128 flats). Processed with PixInsight 1.8.5.1353 Ripley (x64).Jul 13, 2018