Frequently Asked Questions

If you have a question that is not posted here, please use our contact page.

• What's so interesting about Hydrogen alpha? Click here

• What are Sunspots and what causes them? Click here

• What are Prominences and Filaments? Click here

• Any suggestions for a good all round Solar observing book? Click here

• Will I be able to see Prominences, Filaments and Surface Detail using Coronado filters? Click here

• What is the expected life of a SolarMax Etalon? Click here

• What is the best way to keep the filter safe? Click here

• Why do the Coronado SolarMax series filters have a central obstruction? Click here

• Can I image with the PST? Click here

• What size blocking filter do I need? Click here