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Online Astro Calculator

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Replied by Frank Ryan on topic Re: Online Astro Calculator

Dave,
well done on creating a very useful prog.
I cant think of any other way to improve it really.
As far as I'm concerend all that code writing stuff is
black magic.

Oh,
and apparently I'm a Dub also!

:?

Shannon,... SHA...NNon,,,,
SHHHAAA,,,
ah forget it,,
'computer says no'
My Astrophotography
Shannonside Astronomy Club __________________________________________
Meade ETX-125PE, Bresser 10 x 50 Binos & Me Peepers
14 years 7 months ago #70330

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Replied by DaveGrennan on topic Re: Online Astro Calculator

Another addition;

This time a calculator for the local rise/set of the moon and azimuths of same.

webtreatz.com/component/option,com_wrapper/Itemid,85/

Feedback once again appreciated.

I have discovered an issue though. Its to do with UT versus local time. e.g. when a time is calculated as 23:00 (for example) and daylight saving is on the time is displayed as 24:00. It gets worse if you are in a timezone like +3hrs when it will then show as 27:00. I will fix that tomorrow so it shows in the next day as it should.
Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
14 years 7 months ago #70337

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Replied by DaveGrennan on topic Re: Online Astro Calculator

and apparently I'm a Dub also!


Howerya wacker! yer rekkin' me buzz, bud!

It seems that many IP addresses in this country are registered to Dublin. Until the powers that be sort this out you remain Wacker Ryan Jr!!
Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
14 years 7 months ago #70338

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Replied by michaeloconnell on topic Re: Online Astro Calculator

Just an idea Dave:
Would it be possible to make these programs into java-based applets and suitable to upload onto a mobile phone?
14 years 7 months ago #70341

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Replied by michael_murphy on topic Re: Online Astro Calculator

I'll try the 3G connection later and see if it works.


That will be interesting. I would expect the location it gives will be the location of the base station of your service provider.


Hi Dave,

I gave it a go and as you suspect the app still says Dublin.

Michael.
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14 years 7 months ago #70342

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Replied by DaveGrennan on topic Re: Online Astro Calculator

Just an idea Dave:
Would it be possible to make these programs into java-based applets and suitable to upload onto a mobile phone?


At some point down the road yes, but they would need to be completely re-written. Many of these routines started life about 10 years ago as a VB application. Recently I began porting them to php to use as the web apps you see here. Porting them again to java would definitely be possible, but I still have a lot more to do with the web apps. I'm particularly interested in writing routines for satellites such as the ISS etc.

So the short answer is yes but not anytime soon.
Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
14 years 7 months ago #70360

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Replied by albertw on topic Re: Online Astro Calculator

There are several java classes of the algorithms in the book knocking about if anyone feels like writing the apps.
Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/
14 years 7 months ago #70365

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Replied by DaveGrennan on topic Re: Online Astro Calculator

Well tonight I wrote some more code. This time to generate a tracks diagram for Jupiter's moons on the fly.

I'm not ready to publish the web app yet until I evaluate the processing impact on the server. However here's June 2008 diagram.

Any suggestions? Colors ok?

(Click for larger version, depending on your screen res, click again to display it full res (if your browser shrinks it))

File Attachment:


{before you say it, I just noticed, June 31st!!}
Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
14 years 7 months ago #70393

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Replied by michaeloconnell on topic Re: Online Astro Calculator

That looks good Dave.
In temrs of colours, can I suggest something like a shade of grey instead of mustard for the background colour? The only colour then would be the moons.
14 years 7 months ago #70394

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Replied by michael_murphy on topic Re: Online Astro Calculator

Very nice Dave,

At the risk of being very picky, could you have a black and white version so you would know what you would get when printing the diagram?

Michael.
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14 years 7 months ago #70396

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Replied by DaveGrennan on topic Re: Online Astro Calculator

That looks good Dave.
In temrs of colours, can I suggest something like a shade of grey instead of mustard for the background colour? The only colour then would be the moons.


Yep, I'll pop one up later and we can see what it looks like.

Michael: B&W would be possible too.
Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
14 years 7 months ago #70422

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Replied by DaveGrennan on topic Re: Online Astro Calculator

Latest addition to the collection is a page to display eclipses transits and occultations involving the 4 main moons of Jupiter.

All times are UT and predictions are available until the year 2050.

webtreatz.com/component/option,com_wrapper/Itemid,86/
Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
14 years 7 months ago #70824

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