Space Imagery
Eagle Emission Nebula (M16) in Serpens
Eagle Emission Nebula (M16) in Serpens
The Trifid Nebula is Stars and Dust
Unspeakable beauty and unimaginable bedlam can be found
Hurricane Celia
Perfectly circular, powerful Hurricane Celia spaned hundreds of miles over the Pacific Ocean in this image from June 24, 2010. Rough-textured clouds surround the storm’s distinct eye. Farther from the center of the storm, spiral arms appear thinner and smoother. The Moderate Resolution Imaging Spectroradiometer, or MODIS, on NASA’s Aqua satellite captured this true-color image of Hurricane Celia at 1:55 p.m. Pacific Daylight Time on June 24, 2010. Just five minutes later, the U.S. National Hurricane Center classified Celia as a Category 4 hurricane with sustained winds of 135 miles per hour. Image Credit: NASA
ISS transit of the Sun
ISS transit of the Sun
By Robert Vohlidka
The International Space Station transit the sun, on 7-26-10, at 8:58:43 am EST, New York.
Canon 40D Hutech Mod with daytime filter insert, and Baader solar filter on Canon 300mm lens at 300mm, f/5.6. One image out of 173, at ISO 100, RAW and 1/1600sec.
Abell 72
This photo of the Planetary Nebula Abell 72 was taken on May 18-20 2010 from Novi Ligure near Alessandria in Italy.
Optics: Skywatcher Newton 254/1200 at prime focus.
Mount: Skywatcher GEM NEQ-6 SynScan 3.27.
Camera: Atik 16ic monochrome.
Filter: Ha (Astronomik) OIII (Orion Extra Narrow Band).
Autoguide: Tecnosky ED 70/420 (Orion SSAG).
Acquisition: Artemis Capture 3.1.1.
Stacking: Maxim DL.
Final: PSP XII
Dark frames: no
Flat frames: no
The photo is the stacking of 7x5m (Ha) + 8x5m (OIII).
Is also visible the faint PGC 143890 galaxy.
Valter Luna
Centaurus A (NGC 5128)
Centaurus A (NGC 5128)
By Miguel Spinelli, La Plata, Bs As , Rep Argentina
03/20/2010 15 frames x 110 sec, at ISO1600
Meade SN6 , SW EQ5 autoguided mount, Nikon D70
Trifid Nebula (M20)
Trifid Nebula (M20)
By Miguel Spinelli, La Plata, Buenos Aires, Rep Argentina.
Taken 06/05/2010, 55 frames x 150 sec. at ISO1600
Meade SN6 on SW EQ5 mount autoguided + Nikon D70
The Moon and airliner
The Moon and airliner
by Glen Batson
I was testing camera settings with my new AT72ED at dusk and took this picture of the Moon and a commercial airliner. Astro-Tech AT72ED, Canon 50d, ISO800, 1/800s, 06/20/2010 8:03pm CST
The Milky Way Over Bryce Canyon
What are those strange rock structures?
Into the Looking Glass
Recently, technicians at NASA's Marshall Space Flight Center in Huntsville, Ala., completed a series of cryogenic tests on six James Webb Space Telescope beryllium mirror segments at the center's X-ray & Cryogenic Facility. During testing, the mirrors were subjected to extreme temperatures dipping to -415 degrees Fahrenheit, permitting engineers to measure in extreme detail how the shape of the mirror changes as it cools. The Webb telescope has 18 mirrors, each of which will be tested twice in the Center's X-ray & Cryogenic Facility to ensure that the mirror will maintain its shape in a space environment -- once with bare polished beryllium and then again after a thin coating of gold is applied. The cryogenic test gauges how each mirror changes temperature and shape over a range of operational temperatures in space. This helps predict how well the telescope will image infrared sources.
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