This site has been written and tested with a screen resolution of 1024 x 768 under Microsoft Internet Explorer 7.x, and employs frames. There is no non-frame version available.


You may find it necessary to download and install some additional (free) software, or updates to your existing versions, in order to experience multimedia on this site. Links to the appropriate download centres are:



The links on the central bar, which open within the main frame of the website, offer a limited view. If you want a larger viewing area, then instead of left clicking on the link you require, right click on it, and select Open in New Window from the pop-up menu.


Webmaster’s endeavour


It is hoped that this website will be readily usable by every visitor, and it is my intention to address where possible, any shortcomings. However, due to the fact that it is written and maintained by one person on a part-time basis, it is not practical in terms of either time, or indeed my ability, to cover the scope of every surfer’s requirements. Therefore, no guarantee can be offered as to how the site will perform for those visitors using alternative browsers such as Mozilla, Firefox, Netscape, Opera, Lynx et al.


Designed for viewing at 1024 x 768, I have tested and found that it appears to work satisfactorily at higher resolutions. At 800 x 600, it degrades reasonably well, although at this point, the appearance of a scroll bar for the central links bar under the masthead is not particularly pleasing.


It is not possible to design a “one size fits all” website, and indeed if it were, it would seriously degrade the end result for everyone. However I have attempted to cater for the wide disparity of surfers who will use the site. As a time-served typographer/compositor, I well understand the difference between the meaning of readable and legible, and the fact that those definitions change according to the age of the eyes of the beholder. I also very aware of the viewing difficulties faced by the 8-10% of the male population who like myself, have red/green colour vision deficiency (commonly referred to as colour blindness).


With the above points in mind, I have tried to ensure that the text fonts and sizes have been selected to obey the first rule of print, that of readability. Colours selected were found to be acceptable to both those persons with normal colour vision, and those with red/green colour vision deficiency. My thanks are due to both my wife and my 12 year old daughter (2004) for their time and assistance in vetting the site regarding the above elements of readability and colour selection. Regard has also been taken of other elements, and most if not all graphics should have an “alt” text tooltip element to them, so that graphics can be identified by text reading software used by the visually impaired.


The site will never be finished, and never be perfect, for no site ever is. However, I am interested in making realistic amendments to accommodate any problems you may experience as you journey through the web pages of the Isle of Man Astronomical Society, and encourage you to use the link on the previous page to e-mail me accordingly.


In the meantime, I hope the site will prove to be an enjoyable experience as you pass through.


Mark Henthorne