The Rosette Nebula

The Rosette Nebula (NGC 2237, 2238, 2239, 2246) with the embedded open cluster NGC 2244, 1h53, Nikon D750a, Takahashi FS-60CB, Vixen Polarie, Optolong L-enhance

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 NGC2244

Read More

The Milky Way

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.

A Moon Halo

A 22° Halo like this is visible when thin cirrus clouds made of ice cover the sky and the ice-crystals in the clouds are oriented properly.
To the lower left of the Halo you can see the constellation Orion.

Camera Nikon D200
Lens Tokina 12-24 /4 at 12mm
Exposure 15sec. at f/4 ISO 360
Date: 21 February 2010

 

Yet another M42 image…

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.

Read More

NGC 4565

Move your mouse over the image to see annotations for some galaxies.

A larger version of this image which has been annotated with AVM headers can be opened in Microsoft WWT:ngc4565_150mm.jpg

Telescope:
150mm f/5 Newtonian, Baader MPCC Coma Corrector
Camera
Nikon D200
Exposure:
4x300s, ISO 800
Date:
18th, April 2009
Processing:
Preprocessing (Dark, Flat & Bias correction), Alignment & stacking in IRIS, histogram adjustment curves, color correction in Photoshop.

From Clavius to Schiller

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