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Objects studied by astronomers are so far away that it takes a significant time for their light to reach earth. For example, even in the case of the sun, what you see in the sky is not what the sun looks like 'right now', but what the sun looked like about 8 minutes ago ... because that's how long it took for its light to travel the 93 million miles from the sun to the earth. After the sun, the next nearest star to us is so far away that its light takes four years to reach us. So there's actually nothing visible to us in the sky that we see as it exists 'right now'.
Picture this: You and your best friend are in constant communication, and your friend constantly
informs you of every little thing that happens in her life. But the method of communication is
"snail mail", which usually takes two or three days in transit. So, every time you read a line that
says "my brother just walked in the door, and he's taking a beer out of the fridge", you know
that it's not really happening right now, but it actually happened 2 or 3 days ago.
That's the situation when you look into the sky, because light takes time to travel from place to place.
Look at the moon, and you see light that left the moon 1.3 seconds ago. Look at the sun, and you see
light that left the sun 8.3 minutes ago. Look at the nearest star outside the solar system, and you see
light that left the star 4.4 years ago. And so it goes. You never see anything in the sky that's happening
right now. It's always something that happened some time ago. And of you're looking at stars, you're
seeing things that happened years ago.
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What is the main advantage of the hubble space telescopes location?
Hubble being in space does not have a problem of seeing which is caused by atmospheric blurring and thus can observe light at more wavelengths. Its only limitation is by diffraction in its optics
Who has imogen thomas been seeing?
He is seeing Miley Cyrus!!
What is the duration of Seeing Other People?
The duration of Seeing Other People is 1.5 hours.
What are the ratings and certificates for Seeing Red - 1992?
Seeing Red - 1992 is rated/received certificates of: Australia:PG
What are the release dates for Seeing Stars - 2005?
Seeing Stars - 2005 was released on: USA: May 2005
What is the disease of the eye that results in a person not seeing distant objects?
short sight
Instrument that makes small distant objects visible?
An instrument that makes small, distant objects visible is a telescope. Binoculars and scopes are also used for seeing long distance.
What are some of the effects of astronomical seeing?
The North Star can be our compass when we decide to walk through the Sahara desert observing the night sky using our telescope. Our research will help scientists understand the solar system.
How can you see the past looking through a telescope at a distant object?
When you look through a telescope at a distant object, you are seeing the object as it was when the light left that object and traveled through space to reach your telescope. This means you are observing the object as it existed in the past, depending on how far away the object is and how long it took for the light to reach your eyes.
What Instrument used for seeing stars and planets is?
Telescope
What is a view?
The Dictionary Definition is: The Act of seeing or observing
What does 'Doordarshan' mean in English?
Doordarshan is a combination of two words: "Door" (the oo is pronounced as in "ooh"), meaning 'distant'; and "Darshan" meaning 'seeing'. In an astronomical sense, the word refers to a telescope. In a spiritual sense, it refers to clairvoyance.
What is difference between reading glasses and distant glasses?
Reading glasses are designed to help correct near vision for activities such as reading or using a computer at a close distance, while distance glasses are used to correct vision for objects far away. Reading glasses have a higher magnification power compared to distance glasses due to the closer viewing distance.
What instrument is used for seeing stars and a planet clearly?
A telescope is commonly used to see stars and planets clearly in the night sky. Telescopes work by gathering and focusing light to magnify distant objects, allowing observers to see them more clearly and in greater detail. Telescopes come in different types and sizes, suitable for various astronomical observations.
Is seeing and observations are the same?
Yes.Because what you mean by seeing is you watch it and while watching you are observing it with out you knowing.
What is the difference between seeing and observing?
Seeing is the act of perceiving visual information with the eyes, while observing involves actively paying attention to details, patterns, or behaviors within what is seen. Observing typically requires focused and intentional attention, whereas seeing can be more passive.
Studying distant galaxies is described as looking back into the past What does this mean?
When we view an object in space, we are notobserving it "as is" we are observing it "as it was". What we are seeing, is the light that was emitted at that time.For example: A galaxy is 1,000,000 light years away. When we view it, we are seeing it as it was 1,000,000 years ago, because that is how long light has taken to get to us.The galaxy may well have been swallowed by a giant mutant turtle 999,998 years ago, but we will not know for another year.So we are seeing objects in space as that were, relative to their distances from us, not what they are. Eg looking back in time.
