This is the Home Page of John Murrell

Last Update

19th April 2015

Where appropriate changed links will be shown in bold with a coloured background


A bit about me


In my day job I work for London Underground but out of hours ( and sometimes at work ) I am an amateur Astronomer. I have a number of interests both in amateur astronomy, Citizen Science, Astronomical History and passing on some of my knowledge to other people both is astronomical societies and in public lectures.

I am also interested in the opportunities that are now available to Amateur Astronomers through the 'Virtual Observatory', this allows worldwide access to large quantities of astronomical data and allows you to select how to present and analyse it. There should be lots of opportunities there for amateur Astronomers to make discoveries. More details are on the page below.

On the rare occasions cloud and work allow me to take astronomical observations I enjoy trying to photograph astronomical objects and special events such as transits, conjunctions, eclipses and occultations. More details on this are on the pages linked below.

I also have an interest in the weather - this started at school and has continued through my sailing days to my present pre-occupation with astronomy. In the Summer I also hunt for Noctilucent Clouds - as they are on the edge of space they are somewhere between weather and astronomy.

I am a member of a number of organisations which are linked below. I also try to support the RNLI having been rescued by them in the past ! I also have an interest in making things - in particular I have always enjoyed Blacksmithing - I think it must be in my genes as I have discovered that both my paternal grandfather and great-grandfather were blacksmiths.


John Murrell

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 Other Pages

 Astronomy related pages

Societies I am a member of:

 Light Pollution in Carshalton & Sutton

My Old Home Page

Royal Astronomical Society

 Apprentice Blacksmith Page

Virtual Observatory News

Society for Popular Astronomy

 My Image Gallery

Amateur Virtual Observatory

The Astronomer

 Atmospheric Turbulence

Amateur Virtual Observatory: Exercises (new links added 23/10/2012)


CAS Noctilucent Cloud Lecture (3rd June 2011)

Amateur Virtual Observatory: Links  (new links added 28/4/2011)

Croydon Astronomical Society

Surrey Astronomy History

Amateur Virtual Observatory : Using Cartes du Ciel with the Virtual Observatory

(29th March 2014)



Weather for Astronomers



Sky Transparency for Astronomy



Noctilucent Cloud Observing (Updated 19th July 2013)



Intervalometer using RaspberryPi & PiFace ( 22nd July 2013)


Experimental Live Broadcast

Astrophotography with a Canon 40D


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John Murrell 2015


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