I think the measurement of the wall declination with the nail method done
by Caroil is correct.
The azimuth of the sun is 29deg 44min 31sec west of south on the mentioned
place and time.
Willy Leenders
John Carmichael wrote: Hello Carol: (c.c Sundial List) I'm back home and this morning I'm looking at your wall declination measurements. Unfortunately, I am not accustomed to using the nail method you used and I hesitate to comment because I don't want to make a mistake. I have heard of this method however. I am going to forward your letter to our Sundial List discussion group and hopefully somebody there will be able to check your measurements. But I was able to check your solar azimuth data that you got from your astronomy program. According to the program I use (The Dialist Companion), the solar azimuth at that latitude, longitude and time was about 20.45 degrees west of south, not 209 degrees. Just think about it. If the solar declination were 180 degrees west of south, the sun would be due north and that's not possible. 209 degrees would be towards the North East which is also impossible. Hopefully, somebody from the sundial list will help us. John |
- Wall Declination Measurement John Carmichael
- Re: Wall Declination Measurement Gianni Ferrari
- Re: Wall Declination Measurement Willy Leenders
- Re: Wall Declination Measurement JOHN DAVIS
- Re: Wall Declination Measurement tony moss
- Re: Wall Declination Measurement John Carmichael
- Re: Wall Declination Measurement BillGottesman
- Re: Wall Declination Measurement Frank King
- Re: Wall Declination Measurement Alexei Pace
- Re: Wall Declination Measurement Frank King