Full Moon March 8, 2012

March 8, 2012 full moon taken with a 4-in f/9 refractor and a Canon 450D DSLR, ISO 800, 1/2500 sec exposure. Photo credit: Anthony Urbano

The moon presents a wealth of details visible even with the modest of equipment. The features visible in this photo typically represents the details that may be resolved even with small-aperture telescopes.  More lunar images here.

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Barlow Lenses

Barlow lenses may be used to magnify images in casual visual observation and also astrophotograpy (afocal, prime focus, or eyepiece projection)

I find Barlow lenses very useful in achieving better image scale in planetary imaging (through afocal, prime focus, or eyepiece projection). Using a 2x Barlow lens, I can actually double the effective focal length of my setup. With a 2x Barlow, the effective focal length of my 900 mm telescope would  then be equal to 900 mm X 2 = 1800 mm.  During nights of steady seeing and I wish to further magnify an image, I use another 2x Barlow, thereby having an effective focal length of 900 mm X 2 X 2 = 3600 mm :)

For featured photos, click here.
For tutorials on how to get started with astrophotography, click here.
For DIY astronomy projects useful for astrophotography, click here.
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© Anthony Urbano (Manila, Philippines)

Venus February 3, 2012

venus_3February2012
Image of Venus taken on February 3, 2012 at the Manila Observatory, using a 4-in f/9 refractor and a Logitech 4000 web camera at prime focus. Photo Credit: Anthony Urbano. For more images of Venus, click here.

For featured photos, click here.
For tutorials on how to get started with astrophotography, click here.
For DIY astronomy projects useful for astrophotography, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

 

Orion Nebula

Located 1500 light-years from Earth, the Great Orion Nebula (M42) presents a cross-section view of a galactic bubble of gas and dust. The de MairanÕs Nebula (M43) and the Running Man Nebula are also visible in this photo. Sky-Watcher 100 ED on Kenko NES mount, Canon 450D DSLR prime focus at f/9, ISO 1600, 2 x 120 sec exposure stacked using Registax 5.1, 23-Dec-2011, Basud, Camarines Norte. Photo Credit: Anthony Urbano. For more images of Orion Nebula, click here.