Astro Lab 4 (Equinoxes and solstices!)
06-30-2015, 07:25 PM
Post: #6
 salvomic Senior Member Posts: 1,396 Joined: Jan 2015
RE: Astro Lab 4 (Equinoxes and solstices!)
(06-30-2015 06:34 PM)Marcel Wrote:  Hi
Rising, transit and setting is my next function... This is a difficult one. When I do it last year on Mathematica I use the interpolation. The problem is that the time for the three moments are not always in the same cycle for the object. The Sun is not a problem because it always rise in the morning. But a planet can rise at 23 hours and set a 7 hours the next day. In that case the program will not calculate these two moment because the occur at two differents days. Here the user must understand this concept.
Marcel

I know it's a bit tricky.
For the Moon is very hard to do, if one wants precise results.
We must calculate a "standard" height for the body and for the Moon this is connected to parallax also...
I'm doing a separate function but perhaps I must also separate RA/declination from Sun, Moon, Planet to can use interpolation...

For now my program returns "almost right" results, I think...

∫aL√0mic (IT9CLU) :: HP Prime 50g 41CX 71b 42s 39s 35s 12C 15C - DM42, DM41X - WP34s Prime Soft. Lib
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 Messages In This Thread Astro Lab 4 (Equinoxes and solstices!) - Marcel - 06-30-2015, 04:46 PM RE: Astro Lab 4 (Equinoxes and solstices!) - salvomic - 06-30-2015, 05:32 PM RE: Astro Lab 4 (Equinoxes and solstices!) - Marcel - 06-30-2015, 05:59 PM RE: Astro Lab 4 (Equinoxes and solstices!) - salvomic - 06-30-2015, 06:07 PM RE: Astro Lab 4 (Equinoxes and solstices!) - Marcel - 06-30-2015, 06:34 PM RE: Astro Lab 4 (Equinoxes and solstices!) - salvomic - 06-30-2015 07:25 PM RE: Astro Lab 4 (Equinoxes and solstices!) - Marcel - 06-30-2015, 07:41 PM RE: Astro Lab 4 (Equinoxes and solstices!) - salvomic - 06-30-2015, 07:47 PM RE: Astro Lab 4 (Equinoxes and solstices!) - salvomic - 07-01-2015, 12:05 PM RE: Astro Lab 4 (Equinoxes and solstices!) - Marcel - 07-01-2015, 12:11 PM RE: Astro Lab 4 (Equinoxes and solstices!) - salvomic - 07-01-2015, 01:14 PM

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