This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How is distance determined to the nearest stars? How far out can this technique be applied? How many ... (Read 22 times)

cool

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
How is distance determined to the nearest stars? How far out can this technique be applied? How many stars can be measured in this way?
 
  What will be an ideal response?

Question 2

The concept that on the grandest of scales, the universe is similar in appearance everywhere is:
 
  A) special relativity.
  B) general relativity.
  C) homogeneity.
  D) isotropy.
  E) universality.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fdliggud

  • Sr. Member
  • ****
  • Posts: 366
Reply #1 on: Jul 27, 2018
Answer to Question 1

The distance to the nearest stars is measured using parallax. The star is observed when the Earth is on either side of its orbit, six months apart. From the slight motion of the star, resulting from the Earth's change in perspective, and knowing the size of the Earth's orbit, the distance to the star can be calculated. The Hipparcos mission measured about a million stars out to 200 parsecs, or about 700 light years.

Answer to Question 2

C


cool

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
:D TYSM

amandanbreshears

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

The technique of Southern blotting The technique of Southern blotting
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
Having a time zone map located near the telephone will assist you when making long distance calls ou Having a time zone map located near the telephone will assist you when making long distance calls ou
The distance between the centerline of the main bearing journal and the centerline of the ... The distance between the centerline of the main bearing journal and the centerline of the ...
The inverse-square law and its effects. Doubling your distance away from a radioactive material ... The inverse-square law and its effects. Doubling your distance away from a radioactive material ...
Determined the magnitude of the magnetic force on the conductor. Determined the magnitude of the magnetic force on the conductor.
Video: Lipid catabolism - lipolysis and beta oxidation and oxidation of fatty acids

For a complete list of videos, visit our video library