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M27573 viewsMessier 27, (M27, NGC 6853) The Dumbbell Nebula is perhaps the finest planetary nebula in the sky, and was the first planetary nebula ever discovered. Existing estimates for the distance reach from 490 to 3500 light years.Feb 26, 2012
M1596 viewsMessier 1, (M1, NGC 1952), The Crab Nebula is the most famous and conspicuous known supernova remnant, the expanding cloud of gas created in the explosion of a star as supernova which was observed in the year 1054 AD. It shines as a nebula of magnitude 8.4 near the southern "horn" of Taurus, the Bull. The distance is 6,300 light years.Feb 26, 2012
M46482 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 nebulaFeb 26, 2012
M42709 viewsMessier 42 (M42, NGC 1976) The Orion Nebula is the brightest star forming, and the brightest diffuse nebula in the sky. Shining with the brightness of a star of 4th magnitude, it is visible to the naked eye under moderately good conditions. The Orion Nebula is located at a distance of about 1,600 (or perhaps 1,500) light-years.Feb 26, 2012
Mars and Saturn 2012643 viewsHere is a collage of Mars and Saturn from 2/19/2012. Mars nearest approach to Earth occurs in early March 2012, however it will be almost 60 million miles from Earth (making its disk appear small compared to recent years). Saturn will reach opposition in mid-April 2012, so the disk will be growing larger with each day. Come to our Spring events to see Saturn for yourself ! Feb 26, 2012
Messier 46 and NGC 2438639 viewsThe open cluster Messier 46 and the accompanying planetary nebula NGC 2438 are found in the winter constellation Puppis. The open cluster contains 186 stars brighter than 13th magnitude and many more fainter stars. The cluster lies in our Milky Way galaxy at a distance of approximately 4480 light years from us. Image is a total of 1 hr 45 minutes exposure ( 21 x 5 min lights @ -25o C; 30 darks; 64 flats; Astro-Physics 130 mm f/8 refractor & 1200 mount; SBIG ST2000XCM CCD camera).Feb 07, 2012
The Comet and the Cluster642 viewsComet Garrardd (C/2009 P1) is making a pass through the inner solar system. Early Febuary 3rd it came near Messier 92, a globular cluster in the constellation Hercules. Diatomic carbon (C2) is common in comets giving them a green glow. While its too faint for the naked eye, its an easy telescope target. It will make it closest approach to Earth on 3/5 at 1.27 AU. Captured with a Borg 71FL astrograph and Canon T2i (9 min, ISO 1600) from Alamogordo, NM.Feb 04, 2012
Majestic Jupiter596 viewsJupiter is seen high overhead in Jan 2012 after sunset. This image of Jupiter was taken on Jan 3, 2012 from Alamogordo using a Celestron C6 SCT at f25 (3750mm) and NexImage webcam. Jupiter's moon Io is seen on the left, Europa is on the right. Ganymede is transiting across the face of Jupiter to the lower left. Jupiter has equatorial bands whose colors are generated by churning in its atmosphere. Tinkered with Lucy-Richardson deconvolution to bring out extra detail.Jan 22, 2012
More Calcium-K617 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.Jan 22, 2012
The Active Sun in Hydrogen Alpha760 viewsThis image was taken through a 40mm Coronado PST of the Sun on 12/27/2011 at 1925UT. The photograph is centered on the hydrogen alpha emission line at 656.28 nanometers (nm) and shows the chromosphere. Active Region 1384 is the dark region near the center of the photograph. A very large prominence is seen erupting along the rim of the Sun on the right.Dec 27, 2011
Messier 15761 viewsThe globular cluster Messier 15 is found in the constellation Pegasus. Globular clusters are large typically spherical clusters of stars gavitationally bond together. Current estimates suggest M15 contains at least 450,000 solar masses with a very dense center. Image taken with a 178 mm f/9 Astro-Physics refractor and a modified Canon 50D DSLR on an Astro-Physics 1200 mount (70 x 60 sec lights; 30 darks; 66 flats; Images Plus and Adobe Photoshop CS5 software).Dec 26, 2011
The Seven Sisters977 viewsThe star cluster Messier 45 in the constellation Taurus is popularly referred to as the Pleiades or Seven Sisters. The blue color of the reflection nebulosity is due to the blue light of the brightest stars being scattered by the surrounding dust. The pink tones in the right hand portion of image are due to weak emission of a gaseous component. Total combined exposure is eight hours with a modified Canon 40D DSLR at ISO 800 and a Takahashi Epsilon 180 f/2.8 astrograph (96 x 5 min lights; 64 flats; 30 darks; Paramount; Images Plus and Adobe PhotoShop CS5).Dec 13, 2011
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