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wimms
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Is it possible, and what would be simplest means to view sunspots at home? I figured some projection on the wall would be nice, but what you'd need to a get sharp image of say 2ft diameter?
Many good eyepieces have one or more cemented elements (usually two at a time) and I have seen four destroyed in just one day of showing the public some sunspots (not MY scope). In cheaper scopes, the eyepiece housings just simply melt.Originally posted by Phobos
any risk to the optics of the telescope?
Sunspots are dark, cooler areas on the surface of the Sun that appear as small dark spots. They are caused by intense magnetic activity on the Sun's surface.
Studying sunspots can help scientists understand the Sun's magnetic field and its effects on Earth's climate and technology. Sunspots can also give insight into solar activity and potential for solar flares.
The simplest method for viewing sunspots at home is by using a solar filter or eclipse glasses to safely view the Sun. You can also make a pinhole projection or use a telescope with a solar filter.
Sunspots are most visible during the peak of the solar cycle, which occurs approximately every 11 years. However, they can still be seen at other times during the solar cycle.
Yes, it is important to always use proper eye protection when viewing the Sun. Never look directly at the Sun without a solar filter or eclipse glasses. Also, do not attempt to view the Sun through a telescope or binoculars without a solar filter.