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SunSpot-20May.jpg
Sun Spot 20 May, 20071093 viewsThis was captured using my C8 white filter and a webcam. A little windy, and poor seeing. Not a lot of definition. Hope to get a better image of a sunspot later.
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Supernova in Messier 1011293 viewsA supernova has appeared in the galaxy designed Messier 101. A supernova is essentially a star at the end of its lifetime that has exploded. This particular type of supernova is a type Ia, which is assumed to be due to the destruction of a white dwarf in a binary star system. The supernova can be seen in the image as the brightest "star" within the galaxy; located to the left of the center of the galaxy.
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Moon: Tyco/Clavius crater region1308 viewsAn image of the Tyco/Clavius region taken from Alamogordo. Tyco (53 miles in diameter, near center of image) is a relatively young crater based on samples from Apollo 17. Clavius (140 miles in diameter, lower center) is a much older crater with several smaller craters inside of it. Image taken using the C9.25 with a Imaging Source DMK41AU02 camera and Lumicon H-alpha filter. This picture is surprisingly similiar to one in the Sep/Oct 2011 SkyNews (p.36).
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What a diiference a filter makes!1139 viewsHere is the Sun taken on 10/3/11 at 11:15 AM first in White light (left) and Calcium K (right) using a Stellarvue 80ED. The white light image shows a few sunspot groups while the CaK image shows much more detail and areas of increased magnetic activity. AR1302 is on the far right, nearly rotating out of view. The white light image was taken using an Orion glass filter and single snapshot from a Canon T2i. The CaK image was taken with an Imaging Source camera and Lunt B1200 CaK filter.
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M571046 viewsMessier 57 the Ring Nebula appears in the northern constellation of Lyra is a prominent example of a planetary nebula. This is a shell of ionized gas expelled into the surrounding interstellar medium by a red giant star, which was passing through the last stage in its evolution before becoming a white dwarf. The distance is 2300 light years.
Vega_Betelgeuse_spectra.jpg
A Tale of Two Stars1216 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.
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Venus Transit - Calcium K1351 viewsThe AAG and Oliver Lee State Park hosted a Venus transit event on 6/5/2012 to witness this "once in a lifetime event". This photo was taken using a Stellaruve SV80ED refractor, a Lunt B1200 Calcium-K module and Imaging Source DMK41AU02 camera at the event. Venus and Earth are roughly the same size- so this gives a good approximation of the size of the Sun compared to the Earth. Multiple sunspot regions also speckle the image. The AAG also had white light and hydrrogen-alpha telescopes for the crowd to witness the event.
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Antares, M4 and the Rho Oph cloud1230 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.
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Venus transit in white light1348 viewsThis image of the Venus transit was taken in white light (compare to image on right) through a Baader solar filter. Image taken with a TeleVue 3” f/7.4 Oracle refractor using a Baader flat field Barlow to extend the focal length (approximately f/27) and a Canon 50D DSLR @ ISO 400. Three exposures of 1/400 sec were combined and processed in Image Plus 4.50 and Adobe Photoshop CS5.
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IC 1275 region1236 viewsIC (Index Catalog) 1275 is an emission nebula located within a rich star field in the constellation Sagittarius. The red color is due to ionized hydrogen gas (HII regions) being excited by nearby stars. Image taken through a Borg 71FL and modified Canon XS DSLR (two hour exposure, stacked with Nebulosity and processed in Photoshop).
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Yerkes Observatory878 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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Space Shuttle Endeavour828 viewsTook a tour of the Endeavour exhibit in Los Angeles, CA. For more images of the shuttle, check out our AAG Facebook photo album. Endeavour flew to the Hubble Space Telescope on servicing missions and to the International Space Station and installed the Alpha Magnetic Spectrometer.
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