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298 files in 30 albums and 1 categories with 3 comments viewed 188716 times

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M-51-Final.jpg
M-51794 viewsShot this at Steves on 5-25-08 with my Tak FS-102 and ST2000XCM. This is 5 X 10 minute images.
IC_1805_n=1_3_min_exp_E180.jpg
IC 1805865 viewsIC 1805 in Cassiopeia. The loose open cluster in the center of IC 1805 is Melotte 15. A 3-minute exposure taken with a Takahashi Epsilon 180 f2.8 with a Canon 20Da DSLR.
2012_04_27_Moon_6SCT_f20_656nm_-_Copy.jpg
Mare Nectaris/Theophilus crater791 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.
Messier_11.jpg
Messier 11504 viewsMessier 11, often called the Wild Duck Cluster, is found in the constellation Scutum in a rich region of our Milky Way galaxy. There are about 2900 stars attributed to the cluster. Total exposure was 3 hours 20 min through a TeleVue 140 f/5 refractor with a SBIG ST2000xcm camera on an Astro-Physics 1200 mount (20 x 10 min lights; 15 darks; 64 flats; 64 bias). Lights graded in Images Plus 5.0; processed in PixInsight 1.8 with final levels/curves adjustment in Adobe Photoshop CC.
The_Bubble_Nebula.jpg
The Bubble Nebula511 viewsThe bubble nebula in the constellation Cassiopeia was taken with an Astro-Physics 130 f/8 refractor and an SBIG ST2000xcm camera (cooled to –20o C) on an Astro-Physics 1200 mount. The total exposure time was 10 hrs 5 min (121 x 5 min lights; 33 darks; 64 flats) and the images calibrated, registered, combined and processed in PixInsight 1.8 with final adjustments in Images Plus 5.0 and Adobe Photoshop CC.
The_Zeta-Orionis_Region.jpg
The Zeta Orionis Region979 viewsImage of the Zeta Orionis Region in the constellation Orion, which contains both the horsehead and flame nebula. This is a visible light image taken with a modified Canon 40D and a Takahashi Epsilon 180 f/2.8 astrograph (3hr 15 min total exposure). It is interesting to compare it to Jim's Narrowband Image (6th previous image) of the area which essentially maps the concentration of Hydrogen, Oxygen, and Sulfur.
Messier_45_with_Epsilon_130.jpg
The Pleiades Open Star Cluster641 viewsMessier 45, commonly known as the Pleiades or Seven Sisters, is found in the constellation Taurus. The structure in the nebulous regions is created by interstellar magnetic fields. The image was captured using a Takahashi E-130D f/3.3 astrograph and a SBIG STF-8300c camera on a Paramount. Total integration time was 4 hr 20 min (26 x 10 min lights @ -20 degrees C; 20 darks; 64 flats, 64 bias). Images were graded in Images Plus 5.0; Subs calibrated, registered, integrated, and processed in PixInsight 1.8 Ripley with final levels/curves adjustment in Adobe Photoshop CC.
2013-04_Yerkes_Observatory_(3).JPG
Yerkes Observatory570 viewsYerkes Observatory was established in 1897 in Williams Bay, Wisconsin and is considered the birthplace of modern astrophysics. The observatory is operated by the University of Chicago and houses a 40 inch Alvin Clark & Sons refractor telescope. The telescope remains the largest refractor in the world.

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NGC_4631_RCOSf6_DarkMottleRepFinal_Large.jpg
The Whale Galaxy in Canes Venatici18 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 Nebula24 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 Auriga176 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
ProcessWithSynLum_LightnessLightenedWithCurves_sRGBlarge.jpg
The edge-on galaxy NGC 891 in Andromeda 269 viewsThe edge-on galaxy NGC 891 is found in the constellation Andromeda. NGC 891 is approximately 30 million light-years away and is similar in size to our own Milky Way galaxy. A prominent dust lane is seen in the plane of the galaxy with tendrils of dust seen above and below that plain. These dust tendrils may be due in part to supernova explosions. The image is a total of 11 hours of exposure through a 12.5 inch f/9 RCOS astrograph with a SBIG STF8300c CCD camera on a Paramount ME taken in Mayhill, NM on the nights of 13, 14 Oct 2016; 16 Nov 2017; 13, 15 Dec 2017, and 13, 19 Jan 2018 (33 X 1200 sec lights @ -15 degrees C; 18 darks, 128 bias; 128 flats). Processed in PixInsight 1.8.5.1353 Ripley (X64).Feb 09, 2018
M27_sRGB_JPEG_Large.jpg
The Planetary Nebula Messier 27 with O[III] Envelope 246 viewsThe planetary nebula Messier 27 is found in the constellation Vulpecula, which was discovered in 1764 by Charles Messier. The nebula is approximately 815 light-years away. The outer Oxygen envelope was captured using an O[III] filter. The image is a total of 12 hr exposure taken through three different telescopes: 12.5 inch f/9 RCOS astrograph with a SBIG STF8300c CCD camera (Paramount ME); Astro-Physics 178 f/9 with a SBIG STF8300c CCD camera (Astro-Physics 1200); and a Takahashi CCA-250 f/5 with an QSI683wsg CCD camera (Astrodon 3nm O[III] filter) on the nights of 14, 15, 16, 17 Sept 2015; 15 June 2016; 16, 17, 23 Oct 2017 in Mayhill, NM (13 x 1200 sec Lights at -20 deg C; 24 Darks, 128 Bias; 128 flats). Calibrated, Registered, Integrated, and Processed in PixInsight 1.8.5.1353 Ripley (x64).
Feb 02, 2018
RedBlueImageIn_sRGBwithCurves_JPEGlarge.jpg
A section of the Eastern Veil Nebula in Cygnus238 viewsPictured is a portion of the Eastern Veil Nebula, NGC 6992, in Cygnus, which was discovered by William Herschel in 1784. The Veil Nebula is the result of a supernova explosion about 15,000 years ago and is approximately 2,500 light-years away. 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 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).
Jan 26, 2018
FinalView1.jpg
Planetary Nebula Messier 27 in Vulpecula281 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.Jan 07, 2018
NGC1931TheFlyLuminance.jpg
An Open Cluster and Nebulous Region in Auriga273 viewsNGC 1931, sometimes called “the fly”, is a relatively young open cluster surrounded by a field of nebulosity located in the constellation Auriga. The open cluster is approximately 7000 light-years distant. The image was taken through a Astrodon luminance filter (Gen2) with a QSI683wsg CCD camera and a Takahashi CCA250 f/5 astrograph on a Paramount ME on the nights of 23, 30 November and 5 December 2016 in Mayhill, NM (30 x 1200 sec Lights @ -20 degrees C.; 18 darks; 128 bias, 128 flats). Processed in PixInsight 1.8.5.1353 Ripley (x64).
Dec 22, 2017