[BAA Comets] Comet finder charts

[Graham Relf]

On 31/07/2012 11:31, Roger Dymock wrote:
> Hi Graham,
>
> A couple of questions relating to the Kreutz comets on the Computing Section charts;
> - can I enlarge the main chart as these comets are a little crowded making it
> difficult to pick out individual comets?
> - on the detailed chart for a specific Kreutz comet there are a number of circles.
> Presumably these indicate the number of days from perihelion but there are several
> with the same number. Which relate to the comet noted at the top of the chart?
>
> Regards
>
> Roger Dymock
> Email: roger.dymock at ntlworld.com
> Tel: 023 92647986
> Skype: rjvdymock
> MPC Observatory Code: 940
>
> -----Original Message-----
> From: comets-disc-bounces at britastro.org [mailto:comets-disc-bounces at britastro.org] On
> Behalf Of Graham Relf
> Sent: 24 July 2012 19:21
> To: BAA Comets discussion list
> Subject: [BAA Comets] Comet finder charts
>
> Now updated at http://britastro.org/computing/charts_comet.html
>
> But does anyone use them? Please give some feedback.
>
> Graham
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Roger,

No, the main chart cannot be enlarged. The idea was to indicate the 
general search area rather than to pinpoint particular comets. The 
outline of that area might be worth plotting.

On the more detailed charts it is possible to work out which is which of 
the 3 circles with the same label by using the Tabulate button.

However, I can see your point(s) and I will look at making some 
improvements. The detailed charts would be easy to improve but I am not 
so sure about the main chart. I'll look into it anyway.

One problem is that the more features I add the bigger a download it 
becomes, and thereby the less responsive for the user. So I am currently 
working on getting individual orbit elements from the server only when 
required by the user rather than downloading them all at the start. As 
part of that I am making it so the elements are updated daily 
(automatically) from MPC. I'll let you know when the new version is live.

I am glad to see you are using the charts.

Regards,
Graham