March 19, 2015 at 14:02Ways to Look at the Sun
Tomorrow, residents of the western part of our vast country will be able to observe a rare phenomenon - a solar eclipse. Unfortunately, its “epicenter” will be in the northern Atlantic and the Arctic Ocean, so Iceland will be the most lucky. But we will also have something to see - for example, in Moscow, phase 0.65 will be observed.
The longest eclipse in the 21st century, July 22, 2009. Kagoshima, Japan by Takeshi Kuboki
The last time a total solar eclipse in Russia was observed on August 1, 2008, and the next time you have to wait until March 30, 2033. So take a chance, gentlemen, it falls out infrequently. If you live in the depths of the territories covered by the eclipse and are determined to observe this phenomenon, we recommend preparing the material and technical base. And then, after all, according to popular wisdom, you can look at the Sun through a telescope twice in life - with the right and left eye.
As you already understood, looking at the eclipse with the naked eye is not recommended for safety reasons. Of course, for some time, at the “height” of the eclipse, this is permissible as long as the vast majority of the area of the solar disk is closed. But in the initial and final phase it is better to use protective devices. To begin with, in no caseDo not use optical devices such as binoculars, telescopes, and telescopes without filters . This is the first rule. There is a very good chance that you will damage the retina and / or get a thermal burn of the cornea and vitreous body. Again, this applies to the initial and final phases of the eclipse, when the brightness of the glow becomes too high.
Do not even hope to do with ordinary sunglasses, they will not protect your eyes. Any methods of the times of Mikhail Lomonosov, like smoked glass, are also not recommended because of their low efficiency and unpredictability. Ideal option - special solar filters. They can be purchased at astronomy stores. But remember that if you put on or wind the filter to the eyepiece, it can heat up and melt / burst. To prevent this, close the lens of the device with an opaque cap, either “native” or made from improvised materials. As an option, install a light filter in front of the lens, then nothing will need to be closed. Yes, and save you from shooting an eclipse on any photo equipment without an appropriate light filter.
Life hack number one:as a light filter for an optical device or direct observation, you can use welder glasses. Just keep in mind that the filter should completely cover the lens (s) of the devices, otherwise goodbye vision.
Life hack number two: if the filters cannot be built, then you can safely observe an eclipse in the projection. To do this, take a sheet of white paper, hold it for some distance to the eyepiece of the device and you will see the projected image of the Sun. Paper, as they say, will endure everything. When moving the device, ensure that the reflected light circle is precisely a circle, not an oval. And the sharpness of the image is “induced” simply by moving the sheet closer or further from the eyepiece.
Life hack number three:if you don’t have binoculars, a telescope, a telescope, or even a welder’s glasses, and you have only a burning desire to observe an eclipse, then you can build the simplest version of a pinhole camera. To do this, cut a square hole in the cardboard sheet with a side length of 3-5 cm. In this hole, glue a piece of foil with tape and make a tiny hole in it with a needle or a pin. Done: standing with your back (!) To the Sun, bring your miracle adaptation to some smooth and bright surface (asphalt, the wall of the house), and by adjusting the distance, you will get an inverted image of the star. True, the method works best if there is no stray ambient illumination. So it’s best to do this by closing the blackout curtains and inserting a cardboard between them. Experiment in advance to get comfortable and not to lose precious minutes of eclipse,
And another thing: when observing astronomical phenomena and celestial bodies, always mount the device on a tripod. With a more or less noticeable increase, from 20 times or more, even pressing binoculars or a telescope against a window frame or a tree does not help much: we are living and malleable creatures, we can’t turn to stone for a while, so all our micromotion will quickly lead to that just cradles you. And to see the details on the object shaking in the eyepiece will not work. In general, no pleasure, one hassle and a missed chance.
By the way, you do not need a large multiplicity, 20-60 is enough. And the large diameter of the front lens is also not needed, still look at the Sun, there is no need to catch rare photons. Good luck And enjoy the observation. :)
The longest eclipse in the 21st century, July 22, 2009. Kagoshima, Japan by Takeshi Kuboki
The last time a total solar eclipse in Russia was observed on August 1, 2008, and the next time you have to wait until March 30, 2033. So take a chance, gentlemen, it falls out infrequently. If you live in the depths of the territories covered by the eclipse and are determined to observe this phenomenon, we recommend preparing the material and technical base. And then, after all, according to popular wisdom, you can look at the Sun through a telescope twice in life - with the right and left eye.
As you already understood, looking at the eclipse with the naked eye is not recommended for safety reasons. Of course, for some time, at the “height” of the eclipse, this is permissible as long as the vast majority of the area of the solar disk is closed. But in the initial and final phase it is better to use protective devices. To begin with, in no caseDo not use optical devices such as binoculars, telescopes, and telescopes without filters . This is the first rule. There is a very good chance that you will damage the retina and / or get a thermal burn of the cornea and vitreous body. Again, this applies to the initial and final phases of the eclipse, when the brightness of the glow becomes too high.
Do not even hope to do with ordinary sunglasses, they will not protect your eyes. Any methods of the times of Mikhail Lomonosov, like smoked glass, are also not recommended because of their low efficiency and unpredictability. Ideal option - special solar filters. They can be purchased at astronomy stores. But remember that if you put on or wind the filter to the eyepiece, it can heat up and melt / burst. To prevent this, close the lens of the device with an opaque cap, either “native” or made from improvised materials. As an option, install a light filter in front of the lens, then nothing will need to be closed. Yes, and save you from shooting an eclipse on any photo equipment without an appropriate light filter.
Life hack number one:as a light filter for an optical device or direct observation, you can use welder glasses. Just keep in mind that the filter should completely cover the lens (s) of the devices, otherwise goodbye vision.
Life hack number two: if the filters cannot be built, then you can safely observe an eclipse in the projection. To do this, take a sheet of white paper, hold it for some distance to the eyepiece of the device and you will see the projected image of the Sun. Paper, as they say, will endure everything. When moving the device, ensure that the reflected light circle is precisely a circle, not an oval. And the sharpness of the image is “induced” simply by moving the sheet closer or further from the eyepiece.
Life hack number three:if you don’t have binoculars, a telescope, a telescope, or even a welder’s glasses, and you have only a burning desire to observe an eclipse, then you can build the simplest version of a pinhole camera. To do this, cut a square hole in the cardboard sheet with a side length of 3-5 cm. In this hole, glue a piece of foil with tape and make a tiny hole in it with a needle or a pin. Done: standing with your back (!) To the Sun, bring your miracle adaptation to some smooth and bright surface (asphalt, the wall of the house), and by adjusting the distance, you will get an inverted image of the star. True, the method works best if there is no stray ambient illumination. So it’s best to do this by closing the blackout curtains and inserting a cardboard between them. Experiment in advance to get comfortable and not to lose precious minutes of eclipse,
And another thing: when observing astronomical phenomena and celestial bodies, always mount the device on a tripod. With a more or less noticeable increase, from 20 times or more, even pressing binoculars or a telescope against a window frame or a tree does not help much: we are living and malleable creatures, we can’t turn to stone for a while, so all our micromotion will quickly lead to that just cradles you. And to see the details on the object shaking in the eyepiece will not work. In general, no pleasure, one hassle and a missed chance.
By the way, you do not need a large multiplicity, 20-60 is enough. And the large diameter of the front lens is also not needed, still look at the Sun, there is no need to catch rare photons. Good luck And enjoy the observation. :)