Tracing the sun

With this method we can create a scale model of our site to find the shadow cast of the neighboring buildings on our site.

This way we’ll know how much direct sunlight and diffused light our site will receive throughout the year. Sometimes its

also used to position the blocks within a site to achieve the required position based on the sunlight.

The shadows of the Gnomon throughout the day on 21st August and 21st April.

Finding the location of the sun

Step 1: Select a month. ( October is selected in the given image)

Step 2: Select a time. ( 8AM is selected in the given image)

Step 3: Plot the intersection and draw a straight line that would be the azimuthal angle and trace a circle  from that

point to find the altitude angle. (azimuthal angle – 120deg, Altitude angle 10deg)

Sunlight entering into your room

March noon                                                           December noon                                                  June noon

1. which month allows most sunlight onto the floor of the room?

March

2. which month allows least sunlight into the room?

December

3. which month allows most sunlight onto the back wall of the room?

December

4. which month would there be most glare for occupants of the room?

March

Roof lighting using colored filters

Pictures taken with fish eye lens.

Week 4 – Workshop / Jasmitha Sivasankaran / Lighting Design for Spaces (2022-2023)[SEM2] by blogadmin is licensed under a Creative Commons Attribution CC BY 3.0