Building an Allsky camera

Introduction

As an avid stargazer, I've always been fascinated by the night sky. Recently, I embarked on an exciting project to build my own allsky camera using some spare parts I had lying around. This blog post chronicles my journey, from the initial idea to the first successful test on January 21, 2025.

Components Used

For this project, I utilized:

• An unused Raspberry Pi 4, previously used for my eFinder (which was updated to a Raspberry Pi 5)
• An unused fish-eye lens from my ZWO ASI 120MM-S
• A Raspberry Pi HQ camera module

Initial Setup

The initial setup was quite straightforward. I mounted the camera and lens onto a single piece of wood, which served as a temporary casing. Although this setup was functional, I plan to create a more robust casing in the future.

Startrails from the Allsky camera

Software Installation

One of the highlights of this project was the ease of installing the allsky software. I used the software from the AllskyTeam on GitHub, which provided a seamless installation experience. The software is user-friendly and well-documented, making it accessible even for those with limited technical expertise.

First Test

The first test of my allsky camera was a success! However, I encountered an issue with focusing the camera. After some troubleshooting, I discovered that removing a small spacer from the lens resolved the problem. This adjustment allowed me to capture clear and stunning images of the night sky.

Future Plans

My goal is to use the allsky camera primarily during my observing sessions, rather than mounting it permanently on the roof.  This means I can take my allsky camera with me on my observing trips.  Additionally, I am excited about the prospect of taking this camera to Norway to capture the mesmerizing aurora borealis.

Conclusion

Building my allsky camera has been a rewarding experience. It has not only enhanced my stargazing sessions but also provided valuable insights into DIY electronics and astrophotography. I look forward to refining the setup and capturing more breathtaking images of the night sky.