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ART Staff Blog Feed

Ed

Featured Object - The Flame Nebula

posted by Ed on 27 October 2014

The object we'll be looking at this time is the Flame Nebula. This little know nebula is very easy to observe, in terms of its brightness and its size.
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Ed

New Image Viewer Now Live

posted by Ed on 13 August 2014

I am excited to present the very latest version of our online FITS editing tools, now live on the site for you to use. While other sites either provide a static jpeg or (sometimes) give you a FITS file, which you need specialist software to open, we are unique in offering a simple-to-use interface for editing your data, right in your web browser. Our newest, third generation FITS viewer is going to push the boundaries of what you thought was possible in a web page, and the first stage of the release is now live.
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Ed

Object of the Month - Veil Nebula

posted by Ed on 12 August 2014

The Veil Nebula is not an object that has traditionally been popular with the users of the BRT. I can only assume that this is because it's not very well known. With the right settings this object can produce quite nice images.

 
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Ed

Master Dark and Bias Frames

posted by Ed on 5 August 2014

In order to get a good image back from a CCD on the back of a telescope, there are a number of processes you have to put the image through to account for discrepancies and errors. These include applying bias and dark frames as well as flat fielding. We handle these for you automatically, but for those that like to do things by hand we are now producing master dark and bias frames for more advanced users to use.
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Ed

A Guide to Filters

posted by Ed on 8 July 2014

There are a wide range of filters available on our cameras. Different cameras have different filters. These filters have strange names, which may be confusing if you've never seen them before. I dedicate this post to explaining what these filters are and when to use them.
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Ed

Object of the Month - The Milky Way

posted by Ed on 24 June 2014

Our telescope is pretty uniquely capable of capturing images of the milky way in all its splendour thanks to the wide field cameras you are able to request images from. The only difficulty is working out what to point at, as the milky way takes up quite a lot of the sky. (Or all of it you could argue).


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Ed

Object of the Month - Trifid Nebula

posted by Ed on 20 May 2014

There is a lot of gas and dust in space. Most of it we can't see because both the dust and the background of space are very dark. Generally speaking, there are three different reasons we might get to see this dust. The Trifid Nebula (Messier 20) is a great showcase for this as it demonstrates all three in a single object. This also makes it an interesting object to try and image.


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Ed

Fun with Domes (PART 4)

posted by Ed on 24 April 2014

The dome pointing algorithm has so far been improved a good amount but there are still some things that can be done; things that require much more than merely tweaking some parameters.
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Ed

Fun with Domes (PART 3)

posted by Ed on 24 April 2014

This is where I start delving deeper into the mathematics behind the dome control algorithms. After all this it was a good week before I stopped having dreams about spherical polar coordinate transforms.
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Ed

Fun with Domes (PART 2)

posted by Ed on 23 April 2014

In my last blog post I talked about how I had started to investigate the positioning of the dome and I had found some areas of the sky where the galaxy camera was being obscured by the top of the dome.
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