1. Apparent Solar Motions from Earth
i.e. how the sun appears to move.

2. The sun is NEVER directly overhead in WNY. Ever.

3. But wait… where could this be?
Only at the equator and only around the equinoxes

4. How ‘bout this?
But where could this be? When?
NO.

5. This would be somewhere further north on the equinoxes.
Could this ever be WNY?
Not really.
This would be somewhere further north on the equinoxes.

6. How ‘bout now?
Still, no. This would be somewhere further SOUTH on the equinoxes.

7. This is approximately us in NY
What is solar noon?

8. To calculate the height of the sun at local noon…
Equinoxes: solar altitude at noon = 90° - latitude = 90° - 43° = 47° above horizon at local noon Summer solstice = 90° - latitude ° = 70.5° Winter solstice = 90° - latitude ° = 23.5°

12. Year
Vernal Equinox
Summer Solstice
Autumnal Equinox
Winter Solstice
2017
Mar 20
6:28 am EDT
Jun 21
12:24 am EDT
Sep 22
4:01 pm EDT
Dec 21
11:27 am EST
2018
12:15 pm EDT
6:07 am EDT
9:54 pm EDT
5:22 pm EST
2019
5:58 pm EDT
11:54 am EDT
Sep 23
3:50 am EDT
11:19 pm EST
2020
Mar 19
11:49 pm EDT
Jun 20
5:43 pm EDT
9:30 am EDT
5:02 am EST
2021
5:37 am EDT
11:32 pm EDT
3:21 pm EDT
10:59 am EST
2022
11:33 am EDT
5:13 am EDT
9:03 pm EDT
4:48 pm EST

13. Some fun Regents Questions…
Not all of these are on the handout…