=
×

Julian Cope presents Head Heritage

Head To Head
Log In
Register
The Modern Antiquarian Forum »
Stonehenge Y&Z holes evidence of farming calendar
Log In to post a reply
26 messages
Topic View: Flat | Threaded
Dave1982
83 posts

Re: Stonehenge Y&Z holes evidence of farming calendar
Nov 30, 2014, 21:12
tiompan wrote:
Dave ,

this site saves a bit of time
http://mintaka.sdsu.edu/GF/explain/atmos_refr/altitudes.html .
All that is missing is refraction but that is the least important component which , when included would produce the alt. as opposed to the apparent alt. ,as above .


Hi Tiompan

Many thanks for the info - it is the declination of the sun after horizon sunrise ( defined in degrees from North ) related to altitude of the observed horizon ( such as an annoying hill that is in the way ) that I need so will go carefully through the info to find it. : )

I managed to master three dimensional calculus in Applied Physics, 1982, so I’m sure I can manage this - although I am getting a bit old now ! : )

Dave1982
In reply to:
Re: Stonehenge Y&Z holes evidence of farming calendar (tiompan)		 Replies:
Re: Stonehenge Y&Z holes evidence of farming calendar (tiompan)
Topic Outline:
The Modern Antiquarian Forum Index