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Re: Lunar distance calculations
From: Bill Ritchie
Date: 2022 Mar 11, 22:59 +0000
From: Bill Ritchie
Date: 2022 Mar 11, 22:59 +0000
Thanks, Ken. My Windows 10 / Visual Studio Code python installation ran your script first time.
Abbreviated output for N39.0 W122.0.
## t0 : 2022-03-11 22:33:13 UT1
# name0 : Aldebaran
# name1 : moon
# separation_from minus semi-diameters : 29deg 05' 10.7"
For comparison, Frank's Lunar Analyzer gives 29° 4.28', Astron 29° 4.29'. Can we discuss directly when I have studied the detail?
Abbreviated output for N39.0 W122.0.
## t0 : 2022-03-11 22:33:13 UT1
# name0 : Aldebaran
# name1 : moon
# separation_from minus semi-diameters : 29deg 05' 10.7"
For comparison, Frank's Lunar Analyzer gives 29° 4.28', Astron 29° 4.29'. Can we discuss directly when I have studied the detail?
Regards,
Bill
gmail.com 1billritchie
On Fri, Mar 11, 2022 at 6:33 PM Ken Harris <NoReply_Harris@fer3.com> wrote:
Just a simple command line python / skyfield script to compute almanac info to test my sextant : https://pastebin.com/5k8bwnHX
Some misfeatures :
I set the ephemeris file directory to ~/skyfield-data, which might not work on Windoze.
It downloads the ephemeris file (16 megabytes) and the hipparcos star catalog (53 megabytes). Worse, I only hard code 10 star names, so that needs work (the stellarium star name data code is commented out).
