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303 files in 31 albums and 1 categories with 3 comments viewed 281079 times

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Lynds_Dark_Nebula_673_in_the_Constellation_Aquila~2.jpg
Lynds Dark Nebula 6732193 viewsLynds Dark Nebula 673 is found in the constellation Aquila. Unlike bright emission or reflection nebula, dark nebulae are essentially a dense cloud of gas and dust particles that block the light of stars behind it from our view. In this case, the light of stars in our Milky Way galaxy is blocked from view. Stars that do shine through often appear red due to the scattering of light by the dust particles. Total exposure of the image is 3.5 hrs (42 x 5 min).
The_Crescent_Nebula_Ha5xOIII.jpg
The Crescent Nebula in Ha and O[III]539 viewsThe Crescent Nebula (NGC 6888) is an emission nebula found in the constellation Cygnus. The emission is powered by strong stellar winds from a Wolf-Rayet star colliding with previously expelled outer envelopes of the stars atmosphere. This 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 MaxIm DL 6.08; Processed in PixInsight 1.8.4.1185 Ripley (x64). The calibrated, aligned, and integrated Ha and O[III] images were stretched using Masked Stretch, Ha stretch matched to O[III] with Linear Fit, and combined using Pixel Math.
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Planetary Nebula Messier 27 in Vulpecula543 viewsThe planetary nebula Messier 27 is found in the constellation Vulpecula. The bluish central star that results in the emission is an hot O7 star, which is found in the center of the nebula shining at magnitude 13.5. The image is a total of 4 hr 20 min exposure taken through a 12.5 inch f/9 RCOS astrograph with a SBIG STF8300c CCD camera on a Paramount ME on the nights of 16, 17, 23 Oct 2017 in Mayhill, NM (13 x 1200 sec Lights at -20 deg C; 24 Darks, 128 Bias; 128 flats). Processed in PixInsight 1.8.5.1353 Ripley (x64); Color calibration with the Photometric Color Calibration tool.
2012_04_27_Moon_6SCT_f20_656nm_-_Copy.jpg
Mare Nectaris/Theophilus crater1117 viewsThe Sea of Nectar (Mare Nectaris) is a small lunar mare located on the eastern edge of the Moon. Theophilus is the prominent lunar impact crater that lies slightly off center of the image to the left. Theophilus is over 60 miles in diameter and is 14,000 feet deep. The small crater in Nectaris near the top of the image is Rosse and is only 7 miles across. Image taken with a 6" SCT at f20 using a DMK 41AU02 camera through a Lumicom 656 nm filter.
Flame_Nebula_and_Horse_Head_Nebula.jpg
Flame Nebula and Horse Head Nebula858 viewsThe Flame Nebula is an emission nebula and the Horsehead Nebula is a dark nebula are found in the constellation of Orion. The photo consist of 20 3minute exposures taken with a Canon 60Da camera and an Orion 80mm refractor on a Celestron CG-5, stacked with Nebulosity and processed with Photoshop CS6. Taken on October 1, 2013.
Vega_Betelgeuse_spectra.jpg
A Tale of Two Stars1173 viewsHere are basic spectra from two familiar stars in the night sky. Vega's spectra is on the left and basically has weak spectral lines based mostly on the Hydrogen Balmer series. This is indicative of a fairly young, hot star. Betelgeuse's spectra is far more complex. We can see spectral lines for Barium, Calcium, Iron and Magnesium and compounds like Vandium Oxide and Titanium Oxide indicative of a star near the end of its life. Data collected with amateur equipment and processed through RSpec software.
Mercury1.jpg
Mercury Transit 2 - Nov. 8, 20061096 viewsThis shot was taken just as transit began.
Lynds_Dark_Nebula_673.jpg
Lynd's Dark Nebula 673911 viewsLynd’s Dark Nebula 673 is an extensive dust cloud that can be found in the constellation Aquila. Image was taken with a modified Canon 40D DSLR camera (ISO 800) and a Takahashi Epsilon 180 f/2.8 astrograph on a Paramount. Image is a total of 3 hours 30 min exposure (42 x 5 min lights; 20 darks; 64 flats).

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2019_01_20_lunar_eclipse.jpg
Jan 2019 lunar eclipse276 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 Galaxies302 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 288 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 Cassiopeia328 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 Berenices337 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
NGC_4631_RCOSf6_DarkMottleRepFinal_Large.jpg
The Whale Galaxy in Canes Venatici362 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
IC_443_Large.jpg
Turbulent nature of the Jellyfish Nebula497 viewsFound in the constellation Gemini, the Jellyfish Nebula, also designated IC 443, is a large supernova remnant. The emission of the nebula is due to the excitation of hydrogen atoms as the rapidly expanding shell collides with the surrounding molecular gas. This hydrogen-alpha image shows the turbulent nature of the nebula as the resultant shock wave expands. Image taken with a Takahashi CCA-250 f/5 astrograph and QSI683wsg CCD camera (Astrodon 5nm H-alpha filter) on a Paramount ME in Mayhill, NM on the nights of the 23rd, 24th January 2018. Total of 7 hr exposure (21 x 1200 sec lights @ -20 degrees C; 24 darks; 128 bias; 128 flats). Processed in PixInsight 1.8.5.1353 Ripley (x 64).Jun 30, 2018
RGB_Lum_NonLinearCombination_final_Large.jpg
An Open Cluster and Nebula in the constellation Auriga624 viewsNGC 1931 is a relatively young open cluster surrounded by emission and reflection nebulosity (Sharpless 2-237) in the constellation Auriga. Faint red hydrogen emission can be see in the region surrounding the compact cluster/nebulosity. Sharpless 2-237 shows both red hydrogen emission and blue reflection nebulosity. Image was a total of 15 hours of exposure through a Takahashi CCA250 f/5 astrograph with a QSI683wsg camera @ -20 degrees C. (Astrodon Gen 2 filters) on a Paramount ME on the nights of 23, 30 Nov and 5 Dec 2016 and 13, 18, 19 Jan 2018 in Mayhill, NM (Lum 30 x 1200 sec; Red 5 x 1200 sec; Green 5 x 1200 sec; Blue 5 x 1200 sec; with corresponding Flats, Darks, and Bias). Processed in PixInsight 1.8.5.1353 Ripley (x64). Color calibration and RGB image stretch with PixInsight's Photometric Color Calibration and Arcsinh Stretch, respectively.Mar 30, 2018