What is the angle of the Sun on June 21 & Dec 21 at US Zip Code 37129?

[gary350]

TL;DR Summary

What is angle of sun June 21 & Dec 21 at 37129

What is angle of Sun June 21 & Dec 21 at zip code 37129. I need lowest angle & highest angle and probably angle of sun about Feb 20.

Google word search shows nothing. I am probably need using correct word search to find what I want. Several years ago I accidently found a calendar that showed angle of sun buy date & zip code. I have no clue what word search is needed to find what I need.

I think our sun at 37129 is about 34° Dec 21 and about 88° June 21. I also need Feb 20.

I am setting up a solar project for the best angle for coldest part of winter.

 

[hutchphd]

What you need

https://www.timehubzone.com/sun/usa/indianapolis?month=12&year=2022

 

[tech99]

TL;DR Summary: What is angle of sun June 21 & Dec 21 at 37129

What is angle of Sun June 21 & Dec 21 at zip code 37129. I need lowest angle & highest angle and probably angle of sun about Feb 20.

Google word search shows nothing. I am probably need using correct word search to find what I want. Several years ago I accidently found a calendar that showed angle of sun buy date & zip code. I have no clue what word search is needed to find what I need.

I think our sun at 37129 is about 34° Dec 21 and about 88° June 21. I also need Feb 20.

I am setting up a solar project for the best angle for coldest part of winter.

I have referred to Reed's Astro Navigation Tables for a random year.
On 21 June the Sun's Declination is about 23 deg 26 min North of the equator. On 21 Dec it is 23 deg 26 min South of the equator. On 20 Feb it is 10 deg 51 min South of the equator. You are in latitude 39 deg 54 min North according to this web site: https://www.freemaptools.com/convert-us-zip-code-to-lat-lng.htm
To find the Sun's altitude, we use some simple geometry, see this web site:
https://sciencing.com/calculate-suns-altitude-8556649.html
At 21 June, Sun's Altitude is 90 - Latitude + Sun's Dec
Sun's Alt = (89d 60m) - (39d 54m) + ( 23d 26m) = 74d 32m
At 21 December, Sun's Altitude is 90 - Latitude - Sun's Dec
Sun's Alt = (89d 60m) - (39d 54m) - ( 23d 26m) = 26d 40m
At 10 Feb, Sun's Altitude is 90 - Latitude + sun's Dec
Sun's Alt = (89d 60m - (39d 54m) - (10d 51m) = 39d 15m