The eclipse must occur during daytime at your location, you must be located within a few
tens of miles of the central path of the eclipse, the sky at your location must be clear at the
time of totality, and you must be awake and outside.
If there is a total lunar eclipse, everybody sees it as total. If there is a total solar eclipse, only people in a small part of Earth see it as total - most will see it as a partial eclipse, or not at all.
If you have the option, you certainly want to travel a bit farther and observe a total solar eclipse, with the proper safety precautions for your eyes. If you are near the path of totality, you may be in a place that will be dimmed by the 'penumbra', which is another way of saying that you will be where the sun is partially and not totally covered by the moon. A person observing a total eclipse is in the 'umbra'. If there will be a solar eclipse somewhere near you, you should get information through the public media about whether or not you are in the path of totality. Don't pass up an opportunity to safely observe a total solar eclipse. They are beautiful.
A solar eclipse may be partial, total, or annular.
When it occurs, a solar eclipse is visible over only a portion of the earth. In order to see it, you must stand: -- at a place on earth where the eclipse will be visible, -- outdoors -- in the daytime, i.e. between the hours of sunrise and sunset
* For a solar eclipse, there is no specific requirement about the angular sizes.* For a TOTAL solar eclipse, the angular diameter of the Moon must be larger than that of the Sun.
A blank sky, with no moon!
As total solar eclipses are very rare and spectacular, the sight of them is much sought after.
total solar eclipse
If there is a total lunar eclipse, everybody sees it as total. If there is a total solar eclipse, only people in a small part of Earth see it as total - most will see it as a partial eclipse, or not at all.
People located within the path of totality, which is the narrow area where the total solar eclipse can be seen, will be able to observe it. This path can vary for each eclipse and location. Those outside the path will only see a partial eclipse.
Sun - Moon - Earth
A Solar Eclipse, depending where you are in relation to the shadow, depends on whether you see a total Eclipse or a partial.
In that case, a Solar Eclipse occurs. It can be a partial or total eclipse depending on the positions at the time of the eclipse. In total Solar Eclipses, the sun is completely blocked out for a short time in some parts of the world. Likewise, Earth's shadow falling on the Moon is known as a lunar eclipse.
If you have the option, you certainly want to travel a bit farther and observe a total solar eclipse, with the proper safety precautions for your eyes. If you are near the path of totality, you may be in a place that will be dimmed by the 'penumbra', which is another way of saying that you will be where the sun is partially and not totally covered by the moon. A person observing a total eclipse is in the 'umbra'. If there will be a solar eclipse somewhere near you, you should get information through the public media about whether or not you are in the path of totality. Don't pass up an opportunity to safely observe a total solar eclipse. They are beautiful.
A solar eclipse may be partial, total, or annular.
To observe a total eclipse, you need to be in the umbra, the darkest part of the shadow cast by the Moon. During a total solar eclipse, the umbra allows for the complete coverage of the Sun by the Moon, resulting in totality where the Sun is entirely obscured. Observers in the penumbra may see only a partial eclipse. Therefore, being in the umbra is essential for witnessing the full effect of a total eclipse.
The chromosphere of the sun is visible during a total solar eclipse when the moon blocks the bright photosphere, allowing the fainter chromosphere to be observed. It appears as a reddish ring around the dark silhouette of the moon. Outside of a total solar eclipse, specialized solar observing equipment is needed to observe the chromosphere safely.