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Project News

My Astronomy Tutorials


How to test that the bayering pattern is correct:

Bayer pattern test
Tutorial:Vayer pattern test

Shall I use many short exposures or few long exposures?

Many vs Few exposures
Tutorial: Many short exposures or few long eposures ?

Remote control of Canon camera from a smart phone.

Canon remote control
Canon remote control by smart phone

Astroserver CPU load:

Cpu load
Astroserver cpu load

Adjusting main and guide camera angle:

Adjusting camera angle
Adjusting camera angle

My friend Pehr Sällström presentation:

Goethe's Theory of-Colour
Goethe's Theory of Colour

How to find photon flow from objects:

Photon flow
M13 object with stars

How to find a DSLR's multipliers for RGB values with DCRaw:

DCRaw commands
RGB Multipliers

How to find a cameras time efficiency, a simple simulation:

Camera time efficiency simulation

Simulation of Atik 16200, Canon EOS 6D and ASI 1600.

Camera time efficiency simulation

How to transform an optical distorted image to a linear image:

AstroImageJ transform of nonlinear image to liniar
Not ready yet
Comet Catalina C/2013 US10

An attempt from me to create align and Drizzle functions to AstroImageJ, long time project!

AstroImageJ Align and Drizzle
Comet Catalina C/2013 US10

Do you know about this interesting software? Tutorial and my own macros to batch load Canon CR2 raw files.

AstroImageJ astrophoto edit
Comet Catalina C/2013 US10

Short tutorial about how to take photographs of meteor showers.

Photography meteor showers
Perseid Meteor Showers 2015

How I plan when there is a comet going on.

Comet photography planning
Comet Catalina C/2013 US10

Where to find these exciting comets?

How To Find Comets
Comet Catalina C/2013 US10

Photon collecting efficiency

Transmission and Time efficiency
Transmission optical system

Dithering as a replacement for dark calibration


Off axis auto guiding on comets, is it possibly? Yes!

Off axis auto guiding on comets
Comet off axis autoguiding

ISO DSLR, what's going on inside the camera?

3d flat image

How a boring time consuming drift align process will be very easy.

Drift align with PHD2
3d flat image

An illustration why there are so important to do dark and flat calibration.

Dark and Flat calibration
3d flat image

Dark calibration is important, especially the temperature should match between light and dark images. This is a tips for DSLR cameras with temperature sensors, i.e Canon.

Dark Calibration
3d flat image

How to use a LCD-monitor to make flat-images for calibration

Flat Calibration
3d flat image

Fitswork, a free very competitive image processing tool

Fitswork tutorial

Tutorial how to do a time lapse astronomy video

Time lapse tutorial

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