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Random files - User galleries
Messier_78_region_in_the_constellation_Orion.jpg
Dust lanes around Messier 781379 viewsMessier 78 is a reflection nebula in the constellation Orion. As the name “reflection nebula” implies, M78 shines by the reflection of light from surrounding stars. Long photographic exposures show the dust lanes that are near the nebula. The red area in the lower right hand corner of the photograph is part of Barnard’s loop.... a large loop of excited hydrogen gas. Total combined exposure of 11.5 hours (138 x 5 min lights, 35 darks, 64 flats, 64 flat darks); Takahashi E-180ED astrograph; Canon 40D modified.
IC_1805_n=1_3_min_exp_E180.jpg
IC 1805608 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.
Sh2-206_Supernova_Remnant_in_the_Constellation_Taurus.jpg
Sh2-240 Supernova Remnant in Taurus92 viewsImaged is the large supernova remnant Sharpless 2-240 in the constellation Taurus. The complex filamentary structure leads to it's common name, the Spaghetti Nebula. Field of view of the image is 2.12 x 3.21 degrees that captures only part of the nebula, which is approximately 3 degrees. Emission of the nebula is believed to be due to the shock wave of the expanding gas. Image was captured through a Takahashi FSQ 106ED with focal reducer (f/3.6 fl =385mm) and a Canon 60Da DSLR on an Astro-Physics 1200 mount; 23rd and 27th Oct 2014 (20 x 900 sec lights @-20 degrees, dithered; 35 darks; 126 flats; 128 bias; Software: SkyX, MaxIm DL 6, processed in PixInsight 1.8.3.1123).
Messier_8.jpg
Messier 8665 viewsMessier 8 is an emission nebula and open cluster in the constellation Sagittarius. Our current understanding is that the clouds of gas and dust of M8 constitute a star forming region in our galaxy. The image is a total of 15 minutes exposure (3 X 300 sec) with a Takahashi E-180 f/2.8 astrograph and a Canon 20Da DSLR camera. Images calibrated, aligned, and stacked in Images Plus 3.82B and processed in Images Plus and Adobe Photoshop CS5.
Messier_81_in_Ursa_Major.jpg
Messier 81 in Ursa Major684 viewsM 81 is a spiral galaxy in the constellation Ursa Major was discovered by Johann Elert Bode in the 18th century. Current estimates indicate M 81 is approximately 11 million light years away. The dim companion galaxy Holmberg IX (UGC 5336) can be seen as a small blue smudge above M 81. The image was taken with a 130 mm f/8 Astro-Physics refractor with a total combined exposure of 7 hrs 40 minutes (92 x 5 min lights; 30 darks; 64 flats; SBIG ST 2000xcm @ -25 0C; AP 1200 mount)
Mercury_Transit_0818MT_SV80ED_CaK_41AU02.jpg
Mercury Transit 201697 viewsThe Mercury transit was well underway when this image was taken at 8:17 AM MT on 5/9/2016 from the AAG outreach event at Imago Dei Academy in Alamogordo, NM. The image was taken using a Stellaruve 80ED refractor with a Lunt B1200 Calcium-K module and Imaging Source 41AU02 camera. The Calcium K-line (393.4 nm) shows supergranulation in the lower chromosphere (~1200 km) along with lighter regions indicating magnetic activity. Sunspot AR2542 along with the small disk of Mercury are also visible.
The_Trifid_Nebula_M20.jpg
The Trifid Nebula Messier 20377 viewsMessier 20, aka the Trifid Nebula, is both an emission nebula (H-II region imaged in red) and reflection nebula (blue coloration), which is found in the constellation Sagittarius. M 20 is a young star forming region. Image was taken with a TeleVue 140 f/5 refractor and a SBIG ST2000xcm camera (@ -15 degrees) on an Astro-Physics 1200 mount. Image is a total of 4 hr 20 min exposure (26 x 10 min lights, 64 flats, 64 bias, 15 darks) that was calibrated, aligned, integrated (PixInsight nomenclature for combined), and processed in PixInsight 1.8 with final levels/curves in Photoshop CS6. Optec Alnitak panel used for flats.
IC_410_and_the_Tadpoles_in_the_Constellation_Auriga_sRGB.jpg
Emission nebula IC 410 and the Tadpoles in HaRGB129 viewsThe emission nebula IC 410 and the embedded open star cluster NGC 1893 are found in the constellation Auriga. The emission of IC 410, which is about 12,000 light-years away, is powered by the young hot stars in NGC 1893. The gas streamers just to the right and above center, often called the “Tadpoles”, are moving away from the center of the nebula. Picture is a HaRGB image taken with a Takahashi CCA-250 f/5 astrograph and a QSI683wsg camera (SBIG ST-i guider) on a Paramount ME. The Ha channel (used as Luminance) was blended with the RGB synthetic luminance (80:20, respectively) to give a more natural star color (Pixel Math). The image is a total of 11 hours exposure (24 x 20 min Ha, 3 x 20 min each R,G, and B, all binned 1x1 @ -20 degrees C, dithered;), acquired with MaxIm DL 6.07, and processed with PixInsight 1.8.3.1123 Ripley (x64). Ha filter (5nm bandwidth), R, G, and B were 31 mm Astrodon Gen2 filters.

Last additions - User galleries
The_Soap_Bubble_sRGB.jpg
The Soap Bubble in the Nebulosity of Cygnus21 viewsThe Soap Bubble Nebula, or PN G755.5+1.7, is found in the constellation Cygnus. The Soap Bubble is likely a symmetric planetary nebula, which is the expanding shell of ionized gas ejected from a star late in its lifetime. The faint nebula was discovered relatively recently in 2008 on photographs of the Cygnus region. Image was a total of 17 hr 20 min exposure taken with a Takahashi CCA-250 f/5 astrograph with a QSI683wsg camera (Astrodon Gen2 H-alpha filter 5 nm; O[III] 3 nm) on a Paramount ME on the nights of 2, 4, 5, 21, 25, 26, 29, 30 October 2016 in Mayhill, NM (26 x 1200 sec H-alpha lights @ -20 degrees; 26 x 1200 sec O[III] lights @ -20 degrees; 23 darks; 128 flats of each filter; 126 bias; processed in PixInsight 1.8.4.1195; color assigned in SHO-AIP Red = 90 % H-alpha; G = 10% H-alpha and 100% O[III]; Blue = 100% O[III]).Apr 25, 2017
NGC6910_L.jpg
A Young Open Cluster in a Nebulous Complex 114 viewsThe open cluster NGC 6910 is found in the nebulous emission complex IC 1318, which is located in the constellation Cygnus. As NGC 6910 is near the galactic plane, there is a significant amount of interstellar dust in the area. Indeed, the blue spectroscopic star HIP 100548 (aka SAO 49563) is rendered yellowish white due to the light scattering by the interstellar dust. Estimated distance of the star cluster and nebula is 2,000 to 5,000 light years. Image was taken with a 12.5 inch at f/9 RCOS astrograph with a SBIG STF8300c CCD camera on a Paramount ME in Mayhill, NM on the nights of 4, 5, 21, 25, 29, ant 30 Oct 2016. Total of 14 hr 20 min exposure (43 x 1200 sec lights at -15 degrees C; 18 darks; 128 bias; 128 flats); image acquisition MaxIm DL 6; calibration, registration, integration, and processing in PixInsight 1.8.4.1195 Ripley (x64) Mar 03, 2017
NGC1491.jpg
NGC 1491128 viewsNGC 1491 is an emission nebula found in the constellation of Perseus. It is located over 10,000 light-years from Earth and it forms part of the larger Sharpless 206 nebula. This image consists of over 5 hours of imaging with a Canon 60Da camera, 8” TPO telescope on a Celestron CGE Pro mount. Calibrated, stacked, and processed with PixInsight 1.8Feb 11, 2017
Running_man_ABE_ps.jpg
NGC1973135 viewsNGC 1973 (Running Man Nebula) is a reflection nebula associated with Orion’s molecular cloud. The nebula is located just .5 degree north of the Great Orion Nebula and 1,500 light years away from Earth. The blue color derives from the interstellar dust reflecting the light from the surrounding young stars. The image consists of 75 x 5min exposures taken with a Canon 60Da and TPO 8” RC telescope mounted on a Celestron CGE Pro mount. Images were stacked with Nebulosity 4 and processed with PixInsight 1.8 Jan 04, 2017
Milky_Way_Close-up.jpg
The Milky Way at Sagittarius125 viewsA close-up into the Milky Way galaxy near the constellation of Sagittarius. M8, M20, M17 and many clusters are distinguishable among the dust lanes and dark regions of the Milky Way. Taken from Valley of Fires Recreation Area near Carrizozo, NM on September 24, 2016. The image consists of 20 x 2 minutes exposures utilizing a Canon 60Da at f6.3, 70mm focal length, and ISO1600. Stacked with Nebulosity 4 and processed with PixInsight 1.8.Dec 18, 2016
NGC891.jpg
NGC891133 viewsNGC891 is an unbarred spiral galaxy in the constellation of Andromeda. It is located 30 million light-years from earth and it measures 100 light years across. Astronomers believe NGC891 looks similar to the Milky Way if viewed edge-on. This image consist of 5 hours of exposure with a Canon 60Da camera, 8” TPO RC telescope, and Celestron CGE Pro mount. Processed in PixInsight 1.8. Dec 18, 2016
Sun_2016_12_04_SV80_Quark_NaD1_41AU02_reg6_2PM.jpg
AR2615127 viewsActive Region 2615 has rotated into view on the Sun on 12 Dec 2016. It measures some 68,000 miles (110,00 km) end to end. Image taken using a Stellarvue 80mm f7 refractor, Daystar sodium Quark at 588.995 nm (D1 line) and Imaging Source 41AU02 camera. Processed using Registax 6.0 Astra Image 3.0SI (for Lucy Richardson deconvolution) and Photoshop V7.0.1. Dec 04, 2016
M1finalJPEG.jpg
The Crab Nebula in Oxygen[III] and Hydrogen-alpha Emission 159 viewsMessier 1, the Crab Nebula, is a supernova remnant found in the constellation Taurus. M1 was discovered by John Bevis in 1731 (independently discovered by Charles Messier in 1758). Admiral Smyth describes M1 as a “large nebula, pearly white” and of “oval form” in his Cycle of Celestial Objects (2nd edition, page 145). This bi-color image is a total of 17 hrs 20 min exposure using a Takahashi CCA-250 f/5 astrograph and a QSI683wsg CCD camera (Astrodon Gen 2 filters; H-alpha 5 nm; O[III] 3 nm) on a Paramount ME (26 x 1200 sec O[III] lights, 26 x 1200 sec H-alpha lights; 21 darks, 126 bias, and corresponding flats and flat darks). Color assignment H-alpha = red; 15:83 H-alpha:O[III] = green; O[III] = blue; processed in PixInsight 1.8.4.1195.Nov 27, 2016