Bug 170583

Summary: General relativity effects of the sun of star positions
Product: [Applications] kstars Reporter: Médéric Boquien <mboquien>
Component: generalAssignee: kstars
Status: RESOLVED FIXED    
Severity: wishlist CC: akarsh.simha
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Unspecified   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Médéric Boquien 2008-09-07 07:41:14 UTC 
Version:            (using Devel)
Installed from:    Compiled sources

It would be nice to include the effect of the deflection of the stars light near the sun. Reproducing Eddington's experiment could be interesting for educational purposes even if the correction is small.
Comment 1 Akarsh Simha 2009-01-10 22:16:44 UTC 
SVN commit 909033 by asimha:

Applying Nico Dietrich's patch (modified) to add a Sidereal Day
time-step to the Time Spin Box.

Nico's patch would replace the 12 hour timestep with a sidereal day
timestep. Instead of doing that, I modified the patch to retain the 12
hour timestep and add a sidereal day timestep as well.

Thanks Nico! This closes wishlist bug #170583.
(Thanks Médéric, for pointing this out)

BUG: 170583
CCMAIL: kstars-devel@kde.org



 M  +23 -21    timespinbox.cpp  
 M  +1 -1      timespinbox.h  


WebSVN link: http://websvn.kde.org/?view=rev&revision=909033
Comment 2 Médéric Boquien 2009-01-10 23:43:57 UTC 
It is not the right bug number Akarsh i fear. ;)
Comment 3 Akarsh Simha 2009-01-11 06:07:59 UTC 
Oops, Yes. Thanks Médéric.
Comment 4 Akarsh Simha 2009-07-14 23:08:58 UTC 
SVN commit 996762 by asimha:

Store unaberrated values of the sun's position as RA0 and Dec0.

Required for general relativistic corrections near the sun.

CCMAIL: kstars-devel@kde.org
CCBUG: 170583



 M  +6 -0      kssun.cpp  


WebSVN link: http://websvn.kde.org/?view=rev&revision=996762
Comment 5 Akarsh Simha 2009-07-14 23:39:53 UTC 
SVN commit 996779 by asimha:

Adding General Relativity corrections due to the sun's gravity.

Only the backends are implemented now. Pressing 'R' toggles the
relativistic corrections.

To see the effect, zoom in near the rim of the sun and press 'R'.

CCMAIL: kstars-devel@kde.org
FEATURE: 170583



 M  +5 -0      kstars.kcfg  
 M  +3 -0      skymap.h  
 M  +16 -0     skymapevents.cpp  
 M  +69 -6     skyobjects/skypoint.cpp  
 M  +22 -0     skyobjects/skypoint.h  


WebSVN link: http://websvn.kde.org/?view=rev&revision=996779
Comment 6 Médéric Boquien 2009-07-14 23:43:20 UTC 
Thanks Akarsh, that's terrific, i am going to try that out tonight to see if that Einstein guy was right. :)
Comment 7 Akarsh Simha 2009-07-14 23:51:45 UTC 
It'd be great if you could check up if the guy who wrote this code was right as well.