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Doesn't matter which row or column in Table 5?
#1
Here's and odd question- does it matter whether you use the column for minutes of declination or "d" correction from Pub. No. 249 to get the proper "d" correction?  By this I mean I've discovered that whether 249 specifies any "d" correction (45 for example) and the Sun's declination for a certain day and time (let's just say 21 minutes of declination) the same correction value of 16 can be found whether you use 45 minutes of declination and a "d" of 21 or 21 minutes of declination and a "d" value of 45.  No matter which way you  arrange it you still get a d correction of 16.

That would let me think that Table 5 is goof proof- you'll still get the same d correction value.

What do you think?

Thanks,

Ed


TABLE 5- Correction to Tabulated Altitude for Minutes of Declination
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#2
(05-16-2017, 01:29 AM)EdCa Wrote: Here's and odd question- does it matter whether you use the column for minutes of declination or "d" correction from Pub. No. 249 to get the proper "d" correction?  By this I mean I've discovered that whether 249 specifies any "d" correction (45 for example) and the Sun's declination for a certain day and time (let's just say 21 minutes of declination) the same correction value of 16 can be found whether you use 45 minutes of declination and a "d" of 21 or 21 minutes of declination and a "d" value of 45.  No matter which way you  arrange it you still get a d correction of 16.

That would let me think that Table 5 is goof proof- you'll still get the same d correction value.

What do you think?

Thanks,

Ed


TABLE 5- Correction to Tabulated Altitude for Minutes of Declination

(05-25-2017, 05:51 AM)RumataGreetings, EdCa.I think some kind of explanation can be found in Pub.229, Vol.1 Page XI, 4. Interpolation Table. (a) Design.  It shows how the table is designed. Wrote:
(05-16-2017, 01:29 AM)EdCa Wrote: Here's and odd question- does it matter whether you use the column for minutes of declination or "d" correction from Pub. No. 249 to get the proper "d" correction?  By this I mean I've discovered that whether 249 specifies any "d" correction (45 for example) and the Sun's declination for a certain day and time (let's just say 21 minutes of declination) the same correction value of 16 can be found whether you use 45 minutes of declination and a "d" of 21 or 21 minutes of declination and a "d" value of 45.  No matter which way you  arrange it you still get a d correction of 16.

That would let me think that Table 5 is goof proof- you'll still get the same d correction value.

What do you think?

Thanks,

Ed


TABLE 5- Correction to Tabulated Altitude for Minutes of Declination

Greetings EdCa, I think some explanation may come from Pub.229, Vol.1, Page XI, 4. Interpolation Table. (a) Design.

Hope it can help.
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#3
Ed & Rumata,

Table 5 in Pub. No. 249 gave me the same results you're describing. 

Thanks to Rumata, Pub. No. 229 gives the basic formula as seen below.  After running a few examples through the calculator the correct results were obtained every time using the formula.

So far....so good.

Thanks for the ideas men.

Roland


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