0
In the 1800s why did astronomers predict that the planet neptune would be discovered well before anyone had seen it?
Wiki User
∙ 9y ago
Astronomers saw some deviations from the expect orbit of the planet Uranus. Based on these deviations, some theorized that Uranus was being pulled out of its expect orbit by another planet, which turned out be Neptune.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoThe planet Neptune was discovered as a result of a mathematical prediction. Uranus was not quite following the orbit astronomers had predicted for it. Astronomers hypothesized that there must be another, unseen planet whose gravity was affecting Uranus's orbit.
Wiki User
∙ 8y agoNeptune is not visible to the naked eye. Astronomers had noted unexpected changes in the orbit of Uranus. The only way to explain these was if there was a planet beyond Neptune. Very detailed study of the orbit of Uranus allowed astronomers to calculate the position of the predicted planet and it was eventually discovered within 1 degree of its predicted location.
Wiki User
∙ 11y agoTwo mathematicians predicted where the new planet would be. They did this by
working on the disturbance to the orbit of Uranus by an unknown object.
Wiki User
∙ 13y agoBecause they knew GOD put it there
Add your answer:
Earn +20 pts
Why do you say that Neptune the planet was discovered by pen?
It's a long story, and to answer it, we have to go all the way back to when Uranus, the planet before Neptune, was discovered. Uranus was discovered in 1781, and astronomers started calculating the orbit it should be following around the Sun. However, within a few years, astronomers started noticing the planet wasn't quite following the orbit they'd assigned it; it was slightly out of place. No matter how hard they tried, the mathematicians couldn't manage to calculate an orbit for Uranus that fit the facts. In 1845, two astronomers, John Couch Adams in England and Urbain LeVerrier in France, working independently of each other, came to the conclusion that there must be another planet beyond Uranus, pulling on it with its gravity and affecting its orbit. They used the discrepancies in Uranus' orbit to calculate where the new planet should be, but couldn't get anyone interested for a long time. It wasn't until 1846 that a German astronomer, Johann Gottfried Galle, using LeVerrier's calculations, decided to look at the spot in the sky LeVerrier had predicted the planet should be - and lo and behold, there was Neptune! So Neptune was discovered by Adams and LeVerrier, writing down their calculations with a pen, before astronomers had ever actually seen it. That's why Neptune was "discovered by pen."
Did anyone land or just past by neptune?
no
Has anyone dug a hole in Neptune before?
No. Nobody has ever been to Neptune. Also, Neptune is a gas planet. There is no solid surface to dig a hole in.
Has anyone ever landed or shot a robot on neptune?
No. The Voyager 2 space probe flew past Neptune, but nothing has ever entered its atmosphere. Neptune has not surface to land on.
How many people have landed on Neptune?
No human beings have ever been to Neptune (as far as we know).
Why do you say that Neptune the planet was discovered by pen?
It's a long story, and to answer it, we have to go all the way back to when Uranus, the planet before Neptune, was discovered. Uranus was discovered in 1781, and astronomers started calculating the orbit it should be following around the Sun. However, within a few years, astronomers started noticing the planet wasn't quite following the orbit they'd assigned it; it was slightly out of place. No matter how hard they tried, the mathematicians couldn't manage to calculate an orbit for Uranus that fit the facts. In 1845, two astronomers, John Couch Adams in England and Urbain LeVerrier in France, working independently of each other, came to the conclusion that there must be another planet beyond Uranus, pulling on it with its gravity and affecting its orbit. They used the discrepancies in Uranus' orbit to calculate where the new planet should be, but couldn't get anyone interested for a long time. It wasn't until 1846 that a German astronomer, Johann Gottfried Galle, using LeVerrier's calculations, decided to look at the spot in the sky LeVerrier had predicted the planet should be - and lo and behold, there was Neptune! So Neptune was discovered by Adams and LeVerrier, writing down their calculations with a pen, before astronomers had ever actually seen it. That's why Neptune was "discovered by pen."
Does anyone live on Neptune?
No, no one can live on Neptune
Does Neptune have anyone living on it?
NO
Can anyone live on neptune?
No;they will die.
Can anyone give you a exclamation sentence with words scientist and predict?
Predict this, scientist!
Did anyone predict the oil spill?
no
Has anyone been frozen on Neptune?
None has been to Neptune, so no one could possibly have been frozen on Neptune.
Did anyone land or just past by neptune?
no
Where do astronomers snort coke?
They use the bathroom like anyone else in a house or building. They use the restroom, they are astronomers, not astronauts.
Has anyone ever step on Neptune without a spacesuit?
Nobody could step on Neptune, as it is a Gas Giant.
Has anyone ever set foot on Neptune?
No so far no man has set foot on the planet Neptune.
Has anyone dug a hole in Neptune before?
No. Nobody has ever been to Neptune. Also, Neptune is a gas planet. There is no solid surface to dig a hole in.
