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.

Someone asked “Isn’t there an easier way than building an Observatory”

Yes, I did it once while I was building a new observatory. It took me just 3 hours to build!!

Roll off shed design.

Thick marine ply base with 6 castors to help keep it from flexing, cut out for scope pier. Even put in a dehumidifier. Mine was a bit messy as it […]

New light curve for binary NSVS14256825.

New light curve for NSVS14256825 binary.

Standard plot of mag against time. Check plot to look at a check starGetting a bit low (30deg at end) […]

Clear night 22nd July 2019

Great night for planet spotting. Really nice stable conditions. Also got a quick pic of M51 single frame 500sec.

M51 no filter 500sec.

Also got a really nice plot of NSVS 01286630 Orbit 11499 primary eclipse.

Mag against time 170 images at 60 sec […]

Partial Eclipse 16-July 2019

Not the usual view of the moon.. Taken with my phone!

Partial eclipse

Want to get started in astronomy on a budget?

How to Get Started With Astronomy While on a Shoestring Budget

Thanks for writing this handy guide.. Now in the LINKS page.

New Data on NSVS 01286630 a close binary star system.

Binary star measurement.

Using the time variations of the eclipses we are able to calculate the orbit of possible companion objects big enough to have an effect on the orbital period of the binary pair.

The picture below is the plot of light magnitude from the binary pair. The timing of this minima is […]


A star 465 Light years away from earth. Has a planet around it that was first confirmed in 2012. So I thought I would use my observatory to look at the transit of that planet. A very small dip in the light from the star.

HAT-P-12b planet

Unfortunately I could not get the entry […]

Veil Nebula in Cygnus

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.A supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun, which exploded around 8,000 years ago. The distance to […]

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 […]

Observation manager 10 for Astroart 7.0 Now on Download!

Ok 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 […]