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Online Astro Calculator

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15 years 10 months ago #70193 by Seanie_Morris
Replied by Seanie_Morris on topic Re: Online Astro Calculator
Good going Dave, it does work. I hope the times it gives are correct! :P

See I knew this place is awash with great ideas.

Then how about a picture representation?


Kidding!

Also, I am sure you can add a line of code to read the date on one's own computer everytime that applet loads, therefore defaulting to that person's date. A handy technique to just simply going to your applet on the web, and if already defaulted to that date (for both date options given), simply click 'Calculate', and voilá - you have that days/nights time(s).

;)

Seanie.

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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15 years 10 months ago #70208 by dave_lillis
Replied by dave_lillis on topic Re: Online Astro Calculator
Here is another idea,
How about io/europa/ganymede/callisto transit times along with shadow transit times, now that would make it even more useful.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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15 years 10 months ago #70209 by michael_murphy
Replied by michael_murphy on topic Re: Online Astro Calculator
Hi Dave,

I've tested it in Firefox 3 and it worked fine.

I found the passwords a bit difficult to read tho' (maybe I need my glasses changed).

Michael.

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15 years 10 months ago #70211 by albertw
Replied by albertw on topic Re: Online Astro Calculator

I found the passwords a bit difficult to read tho' (maybe I need my glasses changed).


Good, its not just me who thought that! Or perhaps I'll see you in specsavers!

Looks good DG, any plans to share the code or even the algorithms used? I'd be pretty interested in seeing whats involved in the calculation.

Cheers,
~Al

Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/

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15 years 10 months ago #70213 by Calibos
Replied by Calibos on topic Re: Online Astro Calculator
Cool, I can find out if I'll ever be able to see the red spot through the 5 minute gap in the trees next door.

Now I just need a calculator to find out what times Jupiter is in the gap every night and then compare results to find a match :wink:

On a serious note, is this calc not a bit moot for the next 2 or 3 years for us here though. Will we be able to see/image the GRS with 15-20 deg altitude seeing anyway or will this calc come into its own in about 2011 for us.

Keith D.

16" Meade Lightbridge Truss Dobsonian with Servocat Tracking/GOTO
Ethos 3.7sx,6,8,10,13,17,21mm
Nagler 31mm

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15 years 10 months ago #70230 by michaeloconnell
Replied by michaeloconnell on topic Re: Online Astro Calculator
While you are at it Dave, can you write one for transits of the ISS across the disc of the Moon and Sun as visible from Ireland? Should be a *simple* task for someone like yourself.
:wink:

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