![]() ![]() Your friends will love it! Instructions atĪ safe and inexpensive solar telescope of your own! Thanks to the efforts of ![]() Multipole people can easily view your projection. There is an easy-to-make cone device you can attach to a telescope so that His unique discoveries will change the way you look It's always an eye-opening experience for students and You can join artist Bob Miller's web-based "Light Walk" at the Exploratorium. If you want to learn more about how light works, Make a Safe Sun Projector with Binoculars You can also project an image of the Sun using a pair of binoculars Google "pinhole camera" for lots of ideas! Paper, or a screen to project your Sun image onto, or you can even adapt your pinhole camera into a If you want, you can make your pinhole camera fancier by adding devices to hold up your piece of Thought of as a collection of millions of "pinhole" images all bend) the solar images to all fall on top of each Your paper, and you put little lenses in front of each hole to What do you think would happen if you punched a thousand holes in What you are seeing is not just a dot of light coming through the hole,Įxperiment by making your holes larger or smaller. Move your other piece of paper back and forth until the image looks best. Now, find the image of the Sun which comes through the hole. ( Don't look at the Sun either through the hole or in any other way! ) Go outside, hold the paper up and aim the hole at the Sun. With the pin, punch a hole in the center of one of your pieces ![]() This simple device is called a "pinhole camera". You can easily, cheaply, and safely observe the Sun by projecting it through a tiny Which you can access via the web to observe the Sun. Or, if you have your own telescope, you will The easiest and safest is to project the Sun by building There are many ways you can observe the Sun, and hopefully sunspots,įor yourself. The Sun through a telescope or in any other way, unless you have the proper filters.Ĭan one damage their eyes by looking directly at the Sun? Solar flares and CMEs are the most powerful explosions in our solar system.Observing the Sun for Yourself Observing the Sun for Yourself When particularly strong, a CME can also interfere in power utility grids, which at their worst can cause electricity shortages and power outages. When charged particles from a CME reach areas near Earth, they can trigger intense lights in the sky, called auroras. They explode into space at very high speed when the Sun’s magnetic field lines suddenly reorganize. CMEs are huge bubbles of radiation and particles from the Sun. Solar flares are sometimes accompanied by a coronal mass ejection (CME for short). A loop of solar material, a coronal mass ejection (CME), can also be seen rising up off the right limb of the Sun. NASA's Solar Dynamics Observatory captured this imagery of a solar flare, as seen in the bright flash. If a solar flare is very intense, the radiation it releases can interfere with our radio communications here on Earth. Solar flares release a lot of radiation into space. This can cause a sudden explosion of energy called a solar flare. The magnetic field lines near sunspots often tangle, cross, and reorganize. Image credit: NASA/SDO/AIA/HMI/Goddard Space Flight Center Solar Flares In this image, you can see an active region on the sun with dark sunspots. These magnetic fields are so strong that they keep some of the heat within the Sun from reaching the surface. Why are sunspots relatively cool? It’s because they form at areas where magnetic fields are particularly strong. The temperature of a sunspot is still very hot though-around 6,500 degrees Fahrenheit! They appear dark because they are cooler than other parts of the Sun’s surface. Sunspots are areas that appear dark on the surface of the Sun. The glowing hot gas traces out the twists and loops of the Sun’s magnetic field lines. Solar activity can have effects here on Earth, so scientists closely monitor solar activity every day.Īn image of active regions on the Sun from NASA’s Solar Dynamics Observatory. The amount of solar activity changes with the stages in the solar cycle. Sometimes the Sun’s surface is very active. This motion creates a lot of activity on the Sun's surface, called solar activity. The Sun’s gases are constantly moving, which tangles, stretches and twists the magnetic fields. It has electrically charged gases that generate areas of powerful magnetic forces. The surface of the Sun is a very busy place. ![]()
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