Author Topic: Progressions and harmonic  (Read 1071 times)

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Kyle

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Progressions and harmonic
« on: July 11, 2020, 11:22:12 AM »
Good work on the new Planetdance.

Unfortunately, I still can't get progressions to agree with those from astro.com. I use 'Fagan-Bradley' for 'Sidereal' under 'Options General', and use 'Secondary - Primary Cusps' under Horoscope->Progression. Planetary positions agree with those I get with sidereal charts and progressions on astro.com, but angles do not agree.

I am also wondering how to edit 'Harmonic' under Horoscope->Harmonic, such as with AstroBasic. I cannot find an .ab file for it. In any case, I want to apply this formula to the resulting planetary positions of the harmonic: 30(13−harmonic#). But I am unsure how to do this.

Thank you for your consideration!

Jean

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Re: Progressions and harmonic
« Reply #1 on: July 11, 2020, 11:31:33 AM »
Kyle excuse for being lazy but do your tropical progressions agree with astro.com?


As for horoscope harmonic, that is not a script but simple cpp code. Coincidentally the very first functioning ab program, proof of concept, was harmonic.ab because it's so simple. This one is a bit older but still ancient, note the date on top. Nowadays i'm too lazy to use that many caps. ;D

Code: [Select]
$ Harmonic.ab 23-1-1994 $


int i, n = 2;
real Planets[PLANETS];
char PersonName[61], HarmonicName[61];


if (FALSE = gethoroscope("", 0, RADIX))
   quit;
if (FALSE = getnumber("Harmonic", "Enter harmonic number", n))
   quit;
getplanets(0, Planets);
for (i < 14)
   Planets[i] = normalize(30 + n * Planets[i]);
setplanets(0, Planets);
getname(0, PersonName);
strset(HarmonicName, "%s Harmonic %d", PersonName, n);
setname(0, HarmonicName);
horoscopewindow(0, BASIC, 0);
« Last Edit: July 11, 2020, 11:36:43 AM by Jean »
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Kyle

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Re: Progressions and harmonic
« Reply #2 on: July 11, 2020, 11:45:11 AM »
Interesting question Jean. Yes they do. In fact, the angles remain the same. So the angles are showing up as tropical on the charts with sidereal planetary positions.

Yes I am still clueless about these scripts and codes. Good to know it's so simple. I will get back to you about it.  :)

Jean

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Re: Progressions and harmonic
« Reply #3 on: July 11, 2020, 12:27:20 PM »
I fixed a bug where the sidereal setting for progressions was not set correctly. Can you check?
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Kyle

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Re: Progressions and harmonic
« Reply #4 on: July 11, 2020, 01:00:03 PM »
Still gives tropical angles.

Jean

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Re: Progressions and harmonic
« Reply #5 on: July 11, 2020, 01:14:30 PM »
Did you set the input dialog for the progression to Sidereal? It now does that automatically.
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Kyle

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Re: Progressions and harmonic
« Reply #6 on: July 11, 2020, 01:18:26 PM »
Yes it did. And it makes no difference if changed.

I got the harmonic code to run as I wanted it to.  :)

Jean

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Re: Progressions and harmonic
« Reply #7 on: July 11, 2020, 01:28:52 PM »
Well primary cusps are done by the swisse ephemeris function swe_houses_armc(), which uses the armc from a radix to get cusps, but as it turns out the armc that gets calculated by sidereal houses is the same as for tropical. Can't do much about that, strikes me as strange though
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Kyle

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Re: Progressions and harmonic
« Reply #8 on: July 11, 2020, 01:48:50 PM »
Here is an example of the difference.

Jean

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Re: Progressions and harmonic
« Reply #9 on: July 11, 2020, 02:00:18 PM »
I don't know how he calculates those houses. Pd uses Naibod in Ra for primary cusps by means of swe_houses_armc, and the Armc is equal for tropical and sidereal as far as i can see.
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Kyle

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Re: Progressions and harmonic
« Reply #10 on: July 11, 2020, 02:08:48 PM »

Jean

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Re: Progressions and harmonic
« Reply #11 on: July 11, 2020, 02:10:01 PM »
What i've done is set the armc for sidereal house calculation to cusp 10, try if that fits better for you ;) ps. If you want you can always download only pd.exe here https://jcremers.com/pd.exe
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Jean

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Re: Progressions and harmonic
« Reply #12 on: July 11, 2020, 02:13:05 PM »
ps interesting thread indeed!  Confirms my suspicions (ie i am not that stupid after all  8) ). I think what i did with cusp 10 may be a solution as they often don't differ much. What do you think?
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Kyle

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Re: Progressions and harmonic
« Reply #13 on: July 11, 2020, 02:24:18 PM »
You saved me with the link. Sadly, still no difference from before with progressions here?  #7217 in thread says short method of #7213 is the same as astro.com?

Jean

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Re: Progressions and harmonic
« Reply #14 on: July 11, 2020, 02:40:33 PM »
I've done something similar. Can you give it one more go?
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