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| 134 files in 13 albums and 1 categories with 2 comments viewed 32551 times |
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M1397 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.
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Ryan's attempt at M31186 viewsThis was an image last month that Ryan took. I finally got around to uploading it.
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Open Cluster NGC 2264, the Cone and Fox Fur Nebula639 viewsNGC 2264 in the Constellation Monoceros is an open cluster known as the Christmas Tree Cluster (middle and upside down). The Cone Nebula (bottom) and Fox Fur Nebula (just above and to the right of the blue reflection nebulosity) are included in the image. Total of 3 hoursrs 45 minutes exposure (modified Canon 40D, Takahashi Epsilon 180 astrograph, Images Plus 4.0, and Photoshop CS5).
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Andromeda Galaxy221 viewsTwo 30-minute exposures stacked of the Andromeda Galaxy (M31) taken with a Takahashi Epsilon 180 f2.8 and a Canon 20Da DSLR.
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Mercury Transit 2 - Nov. 8, 2006256 viewsThis shot was taken just as transit began.
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M31-Partial211 viewsThis is a single 5 min guided shot with a ST-2000XCM camera on Tak FS102 Mounted on a G11
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More Calcium-K90 viewsThis image from Jan 17,2012 shows active regions 1401/1402 in Calcium K (393.4 nanometers) as they rotated into view. This region recently threw off a coronal mass ejection (CME) that impacted Earth's magnetic field on Jan 22, 2012 creating auroras at the northern latitudes. To learn more about space weather and its impact to us on Earth, go to our AAG Classroom page and watch the video on space weather. Imaged at f14 using a Stellarvue SV80ED, Lunt B1200 CaK filter and Imaging Source camera.
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Large Prominance May 20, 2007227 viewsThis was taken through the PST using a webcam. The webcam required the glass portion of a barlow to come to focus. A better barlow would have made a better picture. Seeing was bad and a little windy. Not bad for a pst.
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Antares, M4 and the Rho Oph cloud8 viewsAntares is the bright star at the lower left of the image. It is over 700 times the diameter of our Sun. Globular cluster Messier 4 is seen on the lower right. The Rho Ophiuchus cloud complex is the closest star forming region to our solar system (~430 lght years away). The cloud complex is much larger than can fit in this image. Blue reflection nebula IC 4605 seen about mid-left, and IC4603 seen middle-top are created by interstellar dust. Borg 71FL astrograph with a modified Canon XS DSLR 36min exp.May 17, 2012
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Super Sunspot AR174621 viewsSunpots are cooler regions in the photosphere where the magnetic field pops through and cools the surrounding plasma. The latest large sunspot rotated into view on May 5 and is the largest since 2003. Active Region (AR) 1476 spans about 160,000 km (100,000 miles) in this image. Image taken on 5/11/2012 using a 90mm refractor at f30, Lunt solar wedge and 532nm filter with a DMK41AU02 camera. See live images of the Sun on our "PLANETS" page.May 13, 2012
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Mare Nectaris/Theophilus crater53 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.Apr 28, 2012
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Messier 81 in Ursa Major76 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)Apr 16, 2012
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Thor's Helmet in the winter Milky Way106 viewsNGC 2359 or Gum 4, a.k.a. Thor’s Helmet, is found in the winter Milky Way of the constellation Canis Major (the large dog). This constellation is easily located since Sirius, the brightest star in the sky, is found in Canis Major. Thor’s Helmut is a gaseous nebula illuminated by a very hot Wolf-Rayet star. Image is a total of 2.75 hr exposure (33 x 5 min lights, 30 darks, 64 flats, 64 dark flats) taken with a modified Canon 40D DSLR and Takahashi E-180ed astrograph.Apr 07, 2012
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Messier 8, 20, and 2198 viewsThe Messier objects M8 (large nebula on right), M20 (blue and red nebula upper left) and M21 (open cluster below and to the left of M20) are favorite summer objects in the constellation Sagittarius. The Messier objects are found in a dense star field of our own Milky Way galaxy. Image taken with a modified Canon 40D and Takahashi E-180ed astrograph on a Paramount (50 x 5 min lights; 30 darks, 64 flats).Apr 06, 2012
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Messier 82, a starburst galaxy109 viewsMessier 82, a galaxy in the constellation Ursa Major, was discovered by Johann Elert Bode in 1780. Today we know M82 is a starburst galaxy where a large number of new stars are being born. Large amounts of in-falling gas are excited by the newly formed stars and are responsible for the red Ha emissions Total exposure was 11.4 hours (137 x 5 min lights) taken with a 130 mm f/8 Astro-Physics refractor and SBIG ST 2000xcm CCD camera on an Astro-Physics 1200 mount. Processed in Images Plus 4.5 and Adobe Photoshop CS5 Apr 03, 2012
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A Tale of Two Stars139 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.Mar 30, 2012
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