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How to watch the solar eclipse

When the moon blocks the light from the sun, an eclipse is produced. The sun, the moon, and the earth are all in one line.

the solar eclipse

Since the sun is 400 times larger than the moon and 400 times farther from the earth, we see that the moon is almost as big as the sun on the earth, just to block the sun. The eclipse is divided into a total solar eclipse and a partial eclipse.

The sun is larger than the moon. The moon umbra is only a small point for the sun, so the total solar eclipse can usually only be seen in a very small area of the earth.

In other places outside the total solar eclipse, the only partial eclipse can be seen. The total solar eclipse usually lasts only a few seconds, up to 7 minutes and a half, because the umbra moves slowly along the whole food belt.

When the moon can’t completely cover the sun, people in the umbra will still see a circle of the sun, which is the solar eclipse.

View location selection

When choosing a location that is suitable for viewing eclipses, there are some essential things to consider:

  • Vision: Choose a wide field of view and see where the shadows are close and away.
  • Comfort: Is there a bathroom, a light meal, a shade…
  • Convenience: Is it easy to reach, park and walk around?
  • Familiarity: Will there be a large number of tourists coming to the public car? If it is convenient for buses to enter and park, and to cause heated discussions on social media, you may be able to find other places that are less well known and not overcrowded. If the people you know open farms, pastures or quiet public buildings in the eclipse, ask if they mind if you are there to see the eclipse.
  • Eclipse viewer: You can buy one or make your solar eclipse glasses.
eclipse glasses

Fully prepared. In the following sections, you will learn how to ensure your safety and comfort. Want to turn the eclipse into a fun activity and stay longer? Let’s bring some food and have a picnic with three or five friends!

Sisters and friends view solar eclipse
Sisters and friends view solar eclipse

Watch the eclipse method

Please pay attention to several erroneous views of the eclipse

Please pay attention to several erroneous views of the eclipse (or sun) and tell others to keep them safe.

Never look at the eclipse through binoculars, monoculars, any glasses, sunglasses, smoked glass, space blankets, CDs, polarizing filters, or exposed color film. It’s can’t protect their eyes.

Although they block the wavelength of light visible to the naked eye, it is the light that is invisible to the naked eye. Ultraviolet and infrared rays still pass through these objects, causing as much damage as visible light.

Use a sun filter.
If you choose to observe the sun directly instead of projecting the sun to other objects, you have to place a solar filter in front of your eyes.

Although during the full eclipse, you may be able to observe the total solar eclipse without any protective measures directly, only experienced observers can accurately determine.

When it is appropriate to see with the naked eye and when the sun must reappear, it must be immediately Keep the sun filter in front of your eyes.

Most of the eclipse is a partial eclipse. Most observers are newcomers. It is best to watch only through the sun filter, which is safer.

Being flashed by the sun will also damage your eyesight, so even if 99.9% of the sun is covered, it is perilous. Solar filters for sale of various observation equipment (cameras, binoculars, and monocular glasses)

When choosing a sun filter for single or twin shots, be sure to purchase a filter for the model and brand. Buying an inappropriate filter, or improper use can cause permanent damage to your eyes.

Make an eclipse projection device or a small hole instrument.

Make an eclipse projection device or a small hole instrument


They are easy to do and are the easiest and safest way to observe eclipses. You don’t need to spend money on buying a few posters.

Its shortcoming is that the sun’s projection image is very small, but it is suitable for children and teenagers who enjoy the production and use of the small hole instrument.

Observe the eclipse with a projection device.

Projecting eclipse images through binoculars or monoculars is another safe way to observe eclipses indirectly.

However, it is safe to use a telescope instead of directly watching the eclipse.

Never look at the eclipse directly through the telescope that is projecting the sun!

The method of planning and observing eclipse with a telescope is as follows:

  • Use a card or a lens to cover the first objective on one side of the binoculars.
  • Back to the sun. Lift the binoculars with one hand and let it face the eclipse, allowing the uncovered lenses to capture the eclipse.
  • Adjust its position according to the shadow of the telescope.
  • Watch a solar eclipse image that is projected onto a screen, wall, or white paper (held in the other hand). It should be about 30 cm away from the eyepiece of the binoculars.
  • Move the position of the telescope until the eclipse appears on the card, screen or wall. The farther the card is from the eyepiece, the larger the cast image.

After adapting to this method, you can fix the binoculars on a tripod or use a table and chair against it — the more stable the telescope, the brighter the projection image.

If you use this method to watch the sun during non-eclipse, remember to transfer the telescope every minute, don’t let it face the sun for a long time, so as not to overheat.

Let these optics rest for about 1 minute before watching the sun again.

Use goggles for welding.

Use goggles for welding

The sun can be observed with the naked eye through the special goggles for welders with a shading number of 14.

This is the most affordable and most comfortable to buy a filter. The goggles must completely cover both eyes throughout the observation period.

You can also put it in front of the binocular objective. It would help if you covered all the lenses with goggles. If you can only cover one lens, cover the other with a cover.

Install the solar filter.

Solar filter

This method is more expensive, mostly for enthusiastic amateur amateurs, or for those who have similar hobbies and are willing to pay for expensive equipment.

There are single-tube and binoculars on the market with their solar filters, but the price is very high.

Unless you think of the sky as a lifelong hobby, you can consider buying one. You can also just buy the filter and install it yourself on the monocular and binoculars.

For large telescopes, the sun filter is the best choice, in addition to protecting the eye, it also protects the lens of the telescope (see the “Warning” column).

However, you must pay attention to a few points. First, you must be very sure that you are buying a solar filter because the filters used for ordinary photography cannot filter out harmful light.

Second, it must be a filter that fits the brand and type of the telescope. Only buy filters from reputable resellers. You are worried about its security, then don’t use it.

You need advice, take it to your local planetarium or club for professional advice and if money is not a problem, the top-of-the-range solar filter is a hydrogen a filter that ensures a clear view and a sundial (a hot air jet from the sun’s surface).

The price is at least a thousand dollars. When installing a special sun filter, remember:

Check for surface defects before installation. The polyester film is easily perforated or cracked so that it cannot be used.

After installation, make sure the filter is securely attached. If necessary, fix it with tape to prevent it from falling out.

Some filters are screwed to the eyepiece. Do not install such filters on the eyepiece of the telescope. The focused light burns out or ruptures the filter. As long as the filter has a little crack or separation, it will cause permanent damage to the eye.

Tips:

Many people think that total solar eclipse is rare. They happen often, but only in certain areas can be seen.

So some people choose to chase the total solar eclipse and hope to see as many times as possible in their lifetime.

Carefully select the objects of the eclipse together. If you only want to see the eclipse, you may wish to see it alone.

If you want to share your experience and create fond memories, go with a quilter friend. For the sake of you and them, don’t bring people who don’t just want to see the solar eclipse.

Can’t you watch the total solar eclipse outside? It can be seen on NASA’s Internet TV NASA TV network.

It is not recommended to use eclipse-specific glasses (unless it meets government-mandated standards) and you are not sure about their quality and safety, it is best not to use them.

The total solar eclipse allows scientists to study the sundial (the outermost layer of the sun’s atmosphere). Astronomers observe the sun during the eclipse and compare it with other stars in the universe to know that the sun is just a ubiquitous star in the universe.

Warning:

During the eclipse, always pay attention to your children, don’t let them hold the observation equipment alone, don’t face them, even a second.

Safety first, when watching the eclipse, in addition to paying attention to eye safety, you should also pay attention to personal safety.

When you are concentrating on the sky, robbers or others may wait for an opportunity to hurt you. When you are in the wrong place, be vigilant. Don’t watch the eclipse alone (if you can see it in the backyard, you are so lucky!).

Go with friends or people you know and watch out for the eclipse during the eclipse. Watching the eclipse in the barren hills should also pay attention to safety.

Beware of people who don’t concentrate on driving. If you drive to a crowded or public observation point, remember to lock the door and put your valuables away.

Please don’t drop the eclipse against the eclipse, but the monocular or binoculars without filters, lest people be curious and use them without warning.

Do not leave the observing equipment and, if necessary, place a significant warning sign. If you need to go for a while or for a long time, remember to transfer them.

Never look at the sun directly with the naked eye. Don’t do this during the eclipse. You should know that!

The larger the telescope, the easier it is to project (long time facing the sun). Solar images can generate a lot of heat, so it’s best to use only simple telescopes, such as a refracting telescope (lens) or a Newtonian reflecting telescope (parabolic mirror).

Don’t use a sophisticated telescope to project the sun, such as a catadioptric telescope (Schmidt or Maksutov-Cassegrain telescope).

Beware of wildlife. Some animals mistakenly eat eclipses as nights, and group animals usually go back to sleep. The strange animal sounds at night can also make you feel uneasy.

If you have had a cataract or eye injury without a natural lens, be sure to protect your eyes with a proper sun filter when watching the eclipse.

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