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
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 was only temporary. Cheap though! And… Fast to start up. I really liked this solution. Mrs also thought it was ok in the garden.

This would be ideal for small gardens or even one of Patrick Moores concrete observatory bases.

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 star

Getting 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 of the moon 16-July 2019
Partial eclipse

Want to get started in astronomy on a 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 then corrected for our orbit round the sun and further corrections to give the precise time of the eclipse.

many of these are measured to find orbital variation caused by third objects.

Light curve for NSVS 01286630

HAT-P-12

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 into eclipse due to cloud and this makes the plot a bit distorted. This is at the exit from transit at 22:00 UTC on the 25-4-2019.

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 the nebula is not precisely known, but data supports a distance of about 1,470 light-years.

Just taken with R,G,B Filters a stack of 3 x 400sec images for each filter. Darks and Flats from the current library. Taken from Selsey with the RC Astrograph and Starlight Xpress H694 camera at -12c.

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.