A Zoom in animation about the Veil nebula

I have done several studies about the apparent scale of several objects, to show, how large they really are in the sky. My older studies can...

An experimental animation of IC 1340

In this experimental animation the nebula, IC 1340, can be seen with and without stars. Sometimes it's easier to see complex shapes of n...

A scale study of the Veil Nebula supernova remnant

I have shot many targets with several focal lengths. Due to that, I will publish some of my material as image sets, with a different field o...

Tulip Nebula, Sh2-101, a study about the scale in a sky

This time I'm zooming from 23 to 0,5 degrees of sky at the direction of the Tulip Nebula, Sh2-101 in Cygnus. I have shot many targets wi...

IC 410 in Auriga, the scale in a sky

I made this zoom in series to show the actual size of this object in the sky. I have placed a white circle, at lover Left corners, in the im...

Siemis 147, the scale in a sky

"How much your telescope magnified?" People generally seems to have a false idea, that high magnification is needed to capture dee...

Cygnus zoom in series

Weather, up here 65N, doesn't give any support so I made an other zoom in series. This time I'm zooming from 23x14 to 0,5x0,7 degree...

Image processing test with Sharpless 119

I made a test, how image resolution gets effected by a stacking algorithm. When images are registered, they are moved and rotated by a fract...

An animation of DWB 111, the "Propeller Nebula", stars vs starless

The starless version shows the actual nebula. It's funny, how much details one can see from the nebula,  when all stars are removed. An ...

Rosette Nebula, apparent scale in a sky, horizontal edition in two palettes

I have shot many targets with several focal lengths.  Due that, I will publish some of my material as an image sets, with different field of...

Bubble Nebula, apparent scale in the sky, horizontal editions

I have shot many targets with several focal lengths.  Due that, I will publish some of my material as an image sets, with different field of...

Butterfly Nebula, apparent scale in the sky, a horizontal edition

I have shot many targets with several focal lengths.  Due that, I will publish some images as an image sets, with different field of view an...

The "Pelican Nebula", apparent scale in a sky, second edition

I have shot many targets with several focal lengths.  Due that, I will publish some of my material as an image sets, with different field of...

NGC7000, the "North America Nebula", a super zoom in and the scale in a sky

I have shot many targets with several focal lengths.  Due that, I will publish some of my material as an image sets, with different field of...

IC 405, apparent scale in a sky in two palettes, redone

I have shot many targets with several focal lengths.  Due that, I will publish some of my material as an image sets, with different field of...