NavList:
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Re: Nautical Almanac Moon Correction Tables
From: Greg R_
Date: 2006 Jul 24, 22:56 -0500
Frank wrote:
> I should have stated that you have to interpolate
> to get that 57.7 entry. And when you do, it's 5.0 all the way across.
As always, the devil is in the details... ;-)
> Right. I should have said that I was looking for the first entry (the one
> for HP=54.0). It should still be 0.3/0.9 since refraction only affects
> the Upper Table.
Assuming you're looking for the 1st column (for altitudes 0 degrees 00' to 4
degrees 50') entry, that would be 0.3' for the LL and 0.9 for the UL - so
looks like your assumption was correct once again.
On a side note, I wonder if the degree symbol shows up in plain-text e-mail
(hopefully that's not a Windows-only "feature") - is this character *not*
readable by anyone? ----> °
--
GregR
----- Original Message -----
From: <FrankReedCT@aol.com>
To: <NavList@fer3.com>
Sent: Monday, July 24, 2006 7:03 PM
Subject: [NavList 904] Re: Nautical Almanac Moon Correction Tables
>
> Greg, you wrote:
> "Don't know if things have changed since 2004, but the two closest
entries
> are now 57.6' and 57.9' (LL entries are 4.9' and 5.3' respectively).
Maybe
> they've re-done the entire table since then?"
>
> Sounds like it's the same. I should have stated that you have to
interpolate
> to get that 57.7 entry. And when you do, it's 5.0 all the way across.
>
> "Assuming you want just the basic altitude correction (and not parallax),
the
> 2006 Nautical Almanac (Commercial Edition) shows a correction of 0
degrees
> 34.5' for 0 degrees 00 minutes of altitude."
>
> Thanks! Curiosity satisfied. Sounds like they updated this table, too.
The
> former value was 33.8.
>
> And:
> "I'll need an exact figure for HP if you want that correction, I'm not
going
> to type the entire column into this e-mail."
>
> Right. I should have said that I was looking for the first entry (the one
> for HP=54.0). It should still be 0.3/0.9 since refraction only affects
the
> Upper Table.
>
> -FER
> 42.0N 87.7W, or 41.4N 72.1W.
> www.HistoricalAtlas.com/lunars
>
>
> >
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From: Greg R_
Date: 2006 Jul 24, 22:56 -0500
Frank wrote:
> I should have stated that you have to interpolate
> to get that 57.7 entry. And when you do, it's 5.0 all the way across.
As always, the devil is in the details... ;-)
> Right. I should have said that I was looking for the first entry (the one
> for HP=54.0). It should still be 0.3/0.9 since refraction only affects
> the Upper Table.
Assuming you're looking for the 1st column (for altitudes 0 degrees 00' to 4
degrees 50') entry, that would be 0.3' for the LL and 0.9 for the UL - so
looks like your assumption was correct once again.
On a side note, I wonder if the degree symbol shows up in plain-text e-mail
(hopefully that's not a Windows-only "feature") - is this character *not*
readable by anyone? ----> °
--
GregR
----- Original Message -----
From: <FrankReedCT@aol.com>
To: <NavList@fer3.com>
Sent: Monday, July 24, 2006 7:03 PM
Subject: [NavList 904] Re: Nautical Almanac Moon Correction Tables
>
> Greg, you wrote:
> "Don't know if things have changed since 2004, but the two closest
entries
> are now 57.6' and 57.9' (LL entries are 4.9' and 5.3' respectively).
Maybe
> they've re-done the entire table since then?"
>
> Sounds like it's the same. I should have stated that you have to
interpolate
> to get that 57.7 entry. And when you do, it's 5.0 all the way across.
>
> "Assuming you want just the basic altitude correction (and not parallax),
the
> 2006 Nautical Almanac (Commercial Edition) shows a correction of 0
degrees
> 34.5' for 0 degrees 00 minutes of altitude."
>
> Thanks! Curiosity satisfied. Sounds like they updated this table, too.
The
> former value was 33.8.
>
> And:
> "I'll need an exact figure for HP if you want that correction, I'm not
going
> to type the entire column into this e-mail."
>
> Right. I should have said that I was looking for the first entry (the one
> for HP=54.0). It should still be 0.3/0.9 since refraction only affects
the
> Upper Table.
>
> -FER
> 42.0N 87.7W, or 41.4N 72.1W.
> www.HistoricalAtlas.com/lunars
>
>
> >
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---
