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On a clear night you can see about 3 million stars true or false?
False. On a clear night, without any light pollution, the human eye can see between 2,500 to 3,000 stars. It is estimated that there are about 100 billion stars in our galaxy alone, the Milky Way.
How easy are lice to see?
Lice are small wingless insects that are around 2-3 mm in size, making them visible to the naked eye. They typically have a tan to grayish-white color and move quickly through the hair, which may make them hard to see at first glance. However, close inspection of the hair and scalp can usually reveal their presence.
How Bright is the constellation Delphinus?
The constellation Delphinus is relatively dim compared to other constellations. It is considered a moderately bright constellation, with its brightest stars being of magnitude 3-4, making it visible to the naked eye in areas with minimal light pollution.
What is the impact of asteroid when it direct hit the planet?
There is no "impact asteroid". An asteroid impact however is when an asteroid hits a planet or moon.
Which planets would we most likely be able to see in our night sky with no telescope?
You can see the six ancient planets without a telescope when they are visible, and in theory you can also see Uranus in perfect conditions. Neptune needs a moderate-sized telescope like a 3" refractor.
Why has only six planet been discovered by late 1700?
Only the ones that are visible to the naked eye were discovered until Uranus was discovered in 1781 by William Herschel using a telescope in a systematic search of the sky. Uranus is theoretically just visible to the naked eye but no-one had noticed it. Neptune is dimmer by 2-3 magnitudes.
Why is neptune the only planet you can not see without a telescope?
The inner, rocky planets are near enough to be seen with the naked eye. Jupiter and Saturn are very large and again can easily be seen by the naked eye. Uranus is large enough to be seen at a distance of approx 3 billion km. While Neptune is only slightly smaller than Uranus and it is 1.5 times as far as away so that it is not visible to the naked eye.
On a clear night you can see about 3 million stars true or false?
False. On a clear night, without any light pollution, the human eye can see between 2,500 to 3,000 stars. It is estimated that there are about 100 billion stars in our galaxy alone, the Milky Way.
What 3 properties do telescopes have thataid astronomers?
Telescopes focus on certain objects that are not visible from the naked eye, they help astronomers develop new theories because they are able to see more, and they are instruments that help astronomers prove theories true/false.
What can you observe to the objectives of a microscope?
You can observe small objects such as cells, bacteria, or particles with a microscope to investigate their structure, behavior, and composition. Microscopes allow for detailed examination and analysis of tiny specimens that are not visible to the naked eye.
How easy are lice to see?
Lice are small wingless insects that are around 2-3 mm in size, making them visible to the naked eye. They typically have a tan to grayish-white color and move quickly through the hair, which may make them hard to see at first glance. However, close inspection of the hair and scalp can usually reveal their presence.
What 3 types of waves do our eyes detect?
Our eyes detect three types of waves: visible light, which allows us to see colors and shapes; infrared radiation, which we sense as heat; and ultraviolet radiation, which is invisible to the naked eye but can cause damage to our eyes and skin with prolonged exposure.
What planet can not be seen from Earth?
The planet Neptune, due to its great distance from Earth, cannot be seen without aid such as a pair of binoculars or a telescope. Uranus, though very dim, can sometimes be made out with the naked eye. All of the other planets are visible with the naked eye.
How many light years out can your telescopes look out in space?
With the naked eye, you can see stars up to about 1000 light years away. You can also see the Andromeda Galaxy. That's about 2.5 million light years away. That's the most distant object visible to the naked eye. Binoculars show it easily. With a 3" refracting telescope can see stars down to at least magnitude 9, plus some galaxies beyond Andromeda. The biggest telescopes can see to over 10 billion light years.
What is a raccoon like when its born?
It weighs between 2 and 3 ounces, is almost naked of fur although the black mask is faintly visible, its eyes and ears are closed.
Is Mars visible from the earth without using a telescope?
Yes, Mars is currently (March, 2010) easily visible with the unaided eye. It is high in the East at sunset, and sets between 3 AM and 4 AM, depending on your location.
What are 3 examples of electromagnetic wave?
Radio waves, which are used for communication and broadcasting. Visible light, the portion of the electromagnetic spectrum that is visible to the human eye. X-rays, which are used for medical imaging and security screening.
