The Rosette nebula is a large and relatively bright emission nebula in the constellation Monoceros. Various parts of the nebula have separate NGC numbers and the embedded star cluster itself is NGC2244Read More
It looks as if 2013 will be a good year for comets. This spring Comet Panstarrs is visible in the darkening sky after Sunset and in December comet ISON should put up an even more impressive show.
Lens: Tokina AT-X 12-24 f/f
Camera: Nikon D200
Exposure: f/4 15s ISO 1600 – 5 images, stacked in IRIS
Date: 7th August 2010
Recently I spent a night in the Alps at 2000m height. I slept outside in a bivouac bag and enjoyed a very dark sky.
I took the picture above with the camera on a small tripod, and made 5 exposures which I later combined into a single picture using IRIS.
To the lower left of the Halo you can see the constellation Orion.
|Lens||Tokina 12-24 /4 at 12mm|
|Exposure||15sec. at f/4 ISO 360|
|Date:||21 February 2010|
After a very long summer-break in Astrophotography, I found myself with time on hand on a clear evening. After I did a series of 4 300s images for the Plejades (see below) I set the scope up to capture a few light frames on M42, the Great Orion nebula. But while I was sitting in the living room trying to get warm again, watching the Soccer Champions League, the D200’s battery ran empty, and I ended up with only one long exposure. I used the single 300s exposure with a much shorter exposure to get some detail in the very bright center of the nebula to get this picture.
Move your mouse over the image to see annotations for some galaxies.
|150mm f/5 Newtonian, Baader MPCC Coma Corrector|
|4x300s, ISO 800|
|18th, April 2009|
|Preprocessing (Dark, Flat & Bias correction), Alignment & stacking in IRIS, histogram adjustment curves, color correction in Photoshop.|
This is a two-frame mosaic taken with a DMK21 camera and an Astro-Professional 80mm ED refractor:
The very obvious crater in the middle of the mosaic is Tycho, it is relatively young and therefore the ejecta rays can still be seen brightly across the lunar landscape. Please note the dark area directly around Tycho which is also caused by ejecta of the impact.
To the lower right is the beautiful crater Clavius which has a nice curve of smaller craters on the floor. To the lower left you can see the very elongated crater Schiller which was produced by an oblique impact. Read More
Today I took the first lunar images using my 80mm ED refractor, this is a 100% crop from an image I shot with my Nikon D200: