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Random files - User galleries
Crescent_Nebula.jpg
The Crescent Nebula and surrounding nebulosity1470 viewsThe Crescent Nebula (NGC 6888) is in the constellation Cygnus. The brighter portion of the surrounding nebulosity in the upper left is IC 1318, which is part of the gamma Cygnus nebulae complex. The bright star in the center of the Crescent Nebula is a Wolf-Rayet star, which are extremely luminous and hot stars that loose mass at very high rates, designated as HD 192163. The image is a total exposure of 1 hr 45 min (21 X 300 sec) taken with a Takahashi E-180 f/2.8 astrograph and Canon 20Da DSLR camera.
M45final2015.jpg
M 45 and associated Nebulosity1196 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.
NGC4565Large.jpg
An Edge-On Spiral Galaxy in Coma Berenices709 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
Catalina_Final.jpg
Comet Catalina954 viewsComet Catalina as of the morning of December 17, 2015. Image taken with an ES127mm refractor and a Canon 60Da camera.
HaOIIIcombined1_Annotated_Medium.jpg
A portion of the Eastern Veil Nebula in Cygnus765 viewsPictured is a portion of the Eastern Veil Nebula, NGC 6992, in Cygnus. The Veil Nebula is the result of a supernova explosion about 15,000 years ago. This bicolor narrowband image was taken through a Hydrogen-alpha filter and an Oxygen[III] filter, with the Red channel assigned to H-alpha, Green channel assigned to 70% H-alpha + 30% O[III], and the Blue channel assigned to 90% O[III]. The image was a total of 8 hrs 20 min exposure with a Takahashi CCA-250 f/5 astrograph and a QSIwsg CCD camera with Astrodon filters (H-alpha 5 nm; O[III] 3 nm) on a Paramount ME in Mayhill, NM on the nights of 17, 23, 24 October 2017 (O[III]: 16 x 1200 sec lights @ -20 degrees C; H-alpha 9 x 1200 sec lights @ -20 degrees C; 24 darks; 128 bias; 128 flats). Processed in PixInsight 1.8.5.1353 Ripley (x64).
NGC_6334___The_Cats_Paw_Nebula.jpg
The Cat's Paw Newbula1735 viewsNGC 6334, AKA the Cat's Paw Nebula, is found in the constellation Scorpius. NGC 6334 is a complex emission nebula along with dark dust lanes. Image is a total of 3 hours 25 minutes exposure (41 x 5 min) taken with a modified Canon 40D and a Takahashi Epsilon 180 f/2.8 astrograph. Image was processed using Images Plus 3.82B and Adobe Photoshop CS5 software.

m46.jpg
M46971 viewsMessier 46 (M46, NGC 2437) This open cluster is very rich, with 150 stars of mag 10-13 and probably a total population of over 500. The brightest of these stars are of spectral type A0, and each about 100 times more luminous than the Sun (the brightest is of apparent magnitude 8.7). This indicates an age of about 300 million years. As a special and famous feature which is also obvious in my photograph, a planetary nebula (NGC 2438, also FC 87) appears within the apparent borders of M46. This object appears to lie near the northern fringes of the cluster. However, this nebula is not a true member but is superimposed, or perhaps a passing "guest". The distance of the cluster is 4,600 light years and only about 2,900 light years for the nebula
M13.jpg
M131250 viewsMessier 13 (M13, NGC 6205), also called the 'Great globular cluster in Hercules', is one of the most prominent and best known globulars of the Northern celestial hemisphere. The distance is 25,100 light years, and it’s diameter is 145 light years.

Last additions - User galleries
NGC2169.jpg
“37” Open Cluster in Orion91 viewsThe open cluster 2169, often called the 37 cluster or Shopping Cart cluster, is found in the constellation Orion. It was arguably discovered by Giovanni Batista Hodierna before 1694 and was independently discovered by William Herschel in 1784. Combined exposure was 2.7 hr through an Takahashi Epsilon-180ED f/2.8 astrograph with a SBIG STC-7 camera mounted on a Paramount ME on the night 16 March 2022 in Mayhill, NM (20 x 160 sec B, 20 X160 sec G, 20 X 160 sec R, Medium Gain, sub-exposure 10 sec, MaxIm DL Stack ProTM). All images calibrated, registered, and integrated with PixInsight 1.8.8-9 Ripley (x64).Apr 16, 2022
integration_ABE_ARP270_Darker.jpg
Arp 270 in Leo Minor93 viewsArp 270, a pair of galaxies with connected arm NGC 3395 and NCC 3396, lies in the constellation Leo Minor. The image of NGC 3395 appears disturbed and a bridge extends from it to NGC 3396. The image is a total of 3 hours exposure with a 12.5 inch RCOS f/9 operating at f/6 (Astro-Physics CCDT67) with a SBIG STF8300m mounted on a Paramount taken on the nights of 26 Feb and 5 Mar 2019 in Mayhill, NM (9 x 1200 sec Lights, 128 Bias, 128 Flats, 22 Darks all @ -15 degrees C). Processed with PixInsight 1.8.8-12 Ripley (x64).Feb 11, 2022
RGBfaintstructureFinalSmall.jpg
A Spiral Galaxy in Leo206 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
M57finalsmall.jpg
The Ring Nebula in the Constellation Lyra218 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
2019_01_20_lunar_eclipse.jpg
Jan 2019 lunar eclipse670 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
NGC1275final_Large.jpg
The Perseus Cluster of Galaxies721 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
NGC663FinalsRGB_Large.jpg
Open Cluster in Cassiopeia 660 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
MRlarge.jpg
A Large Emission Nebula in Cassiopeia691 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