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Measuring distance between objects   Message List  
Reply | Forward Message #7202 of 7394 |
Hi,

Using rt-click/drag to measure the distance between 2 objects doesn't
give the value for RA offset that I expect. Dec offset and distance
appear to be fine. But RA offset seems to have a factor of cos(dec)
applied to it. That is, it is accurate for 2 points on the equator, but
gives half the value I expect for 2 points at 60 deg dec. Using the
Num-0 method gives the same results.

Am I misinterpreting this feature or is this a bug? I'm using the 2
June 2008 version.

Thanks for your help,

Jeff




Mon Jul 13, 2009 4:22 am

jff_pas
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Message #7202 of 7394 |
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Hi, Using rt-click/drag to measure the distance between 2 objects doesn't give the value for RA offset that I expect. Dec offset and distance appear to be...
Jeff Buell
jff_pas
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Jul 13, 2009
12:02 pm

Hi folks, I've just posted an 'in-testing' version at the usual site, http://www.projectpluto.com/new.htm Relative to the previous 'in-testing' version, this...
Bill J Gray
feliks314159
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Jul 17, 2009
1:29 am
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