- #1
Frank Einstein
- 170
- 1
Hi everybody, I was messing arround with the program stellarium; I decided to check the hour angle of the sun at 10 am on August 12; it was 19h 53 min; then I did the same for september 4th and it was 20h 0 min.
As far as I know it takes 23h 56 minutes to the sun to cross the same point in the sky, so the hour angle varies in about 4 minutes each day; but the hour angle only changes in seven minutes in twenty three days; can someone please tell me why that angle has variated only in seven minutes and not the 92 (23*4) it should have?
Thanks for your anwsers.
As far as I know it takes 23h 56 minutes to the sun to cross the same point in the sky, so the hour angle varies in about 4 minutes each day; but the hour angle only changes in seven minutes in twenty three days; can someone please tell me why that angle has variated only in seven minutes and not the 92 (23*4) it should have?
Thanks for your anwsers.