About Astrojohn

I am a science geek! Interests Astronomy, Skiing, Philosophy, basically any form of technology including writing automation software for my observatory. I will also share this with others using the same EQMOD/Astroart tool set.



Observation Manager Click to join AA5ObsMgr

Click to join AA5ObsMgr

Eclipse of the moon!

Eclipse of the moon

You will need to know the format of files in your TEMP files

I have included a sample TEMP file for the ObsMGr10. This gives you the file naming conventions I have used for Master Darks and Flats:
MD30B1 for example is a 30 sec master dark binned 1X1
For the flats the names are more obvious except that after L,R,G,B I have used filter slot numbers. eg I have a Johnson V filter in slot 6.

Hope you can make sense of this.

Clearly there is a lot of system setup to do before you have full automation, but once done it makes life very easy to get say 100 variable star measurements for a time series curve. All automated and checked for accuracy and noise level.

Hope this helps.

Observation manager 10 for Astroart 7.0 Now on Download!

As requested the new Observation manager and Script Runner for Astroart 7.0 with all the new automation features for preprocessing and time series variable image collection and processing now available.

You will also need a temp file on the desktop for all your images and log files.
You can put this anywhere as long as you define the location in your Param2 file.

Any questions just email me at web@astro.me.uk


Happy Christmas to you all.


Gave my telescope mirror a Christmas clean today..

First blow all the dust (and spiders) out with hair dryer.
Then wash over the mirror with fine lens brush and distilled waster
Dry with lens tissues
Finally spray with a decreasing optical spray and dry with a clean lens cloth.
Not perfect but removed all the salt spray and dust.
Just need a new set of flats and darks to complete the job.

Hope you all have a happy Christmas..

Claire Meyer – Resource for Astronomy for Kids!

Hi All,

Just added a link to Claire Meyer – Astronomy for Kids resource.  No adverts!


I have put a link in the LINKS page.

One of the nicest tree tunnels in UK

This is Halnaker Tunnel near Chichester.   Really photogenic tree lined tunnel


Halnaker Tunnel

Clear night at Woodland Observatory – 8/10/2018

The sky was clear but a lot of heat rising from the ground.
3 X 300 seconds for R G B with RC Astrograph
Processed with Observation manager 9.12e using Astroart 7 script interface.



Check out the new LINKS for finding reference stars and time adjustments for Einstein, Barycentric and Heliocentric time

This is the link on this site:




Latest Spectra of bright star Phad in Plough

This is an easy one as it is an A0 spectral type.

Type Ao with SA200 grating

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