CNREF - Estimate the refraction of a celestial body
Description: Estimates the refraction to be applied (along with semidiameter if required) to the apparent height of a celestial object. The calculated refraction is to be subtracted from the apparent height.
Inputs:
| Ha | The apparent height of the celestial object |
Outputs:
| Refraction | The estimated refraction (to be subtracted) |
Sample execution:
Ha? 30,0 Refraction: 0° 01.7'
(For explanation of notation, conventions etc, see python-programs).
Copyright (C) 2024 Ian Staniforth
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
https://www.gnu.org/licenses/.
# CNREF - Calculate refraction for an object at a given apparent height
from math import *
from CN_LIB import *
ha = stod("Ha? ")
r = Cot(ha+(7.31/(ha+4.4)))/60
print("")
print("Refraction: "+dtos(r))