Planisphere Instructions
- Download the planisphere top
- Print planisphere top to on a piece of transparency film
- Download the planisphere bottom
- Cut out the circulation section of the planisphere bottom
- Using a sharp object, punch a hole through the NCP + on both bottom and top sheets
- Slide the planisphere bottom under the planisphere top printed on the transparency film
- Insert a small brass fastener between top and bottom sheets through the NCP + hole
- Align date and time on outer rim to see what the sky will look like