Answer: get smaller
Explanation:
Parallax is the angle formed by the observation lines to a very distant object from two separated points.
The procedure to measure this distance in the case of a star, is based on observing it from two different places far away from each other, and then through trigonometry reach to the following relationship:
(1)
Where:
is the distance from Earth to the observed star (in Parsecs
)
is the earth-sun distance that is equivalent to an astronomical unit (1AU=150000000km)
is the angle of the parallax (in arc seconds
)
Now, the distance to an object (measured in parsecs) is the reciprocal of the parallax (measured in arcseconds). Then, in its simplified mode, the stellar parallax is given by the following equation:
(2)
As we can see, there is an inverse relation between the distance
and the parallax
:
(3)
Hence, if the distance is increased by a factor of 10, the parallax is decreased by a factor of 10.
In other words, the parallax angle gets smaller.
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Canada's 13 provinces and territories are, Alberta, New Brunswick, Northwest Territories British Columbia, Manitoba, Newfoundland and Labrador, Prince Edward Island , Nova Scotia, Nunavut, Ontario, Quebec, Yukon and Saskatchewan.
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The early European exploration of Australia's interior was prevented by the Western Plateau and the Great Dividing Range.
Explanation:
Australia was discovered and explored by the Europeans much latter than the other large land masses on the planet, apart from Antarctica of course. When Australia was discovered, it was not inhabited, but it was after some time when the British came that Europeans started to settle in. Australia was actually used as a prison, as it is mostly British prisoners that were brought and settled.
It was only the coastal areas that were explored and settled though, while the interior was left untouched. The reason for this were the natural obstacles, mainly the Great Dividing Range and the Western Plateau. The Great Dividing Range is a high and steep mountain range, covered with dense forest, in a roughly north-south direction, and it was extremely hard and dangerous to pass it. The Western Plateau is an enormous plateau that is mostly covered with deserts, so naturally the people avoided it.
Even nowadays, there is very big portion of Australia that is not explored and is void of humans, such as:
- Great Victoria Desert
- Great Artesian Basin
- The tropical rainforest in the northeast
- Macdonnel Ranges
Learn more about the desert regions in Australia brainly.com/question/11205492
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