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 45 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
YES! Correct, THANKS for helping me on my review

Bigfoot1984

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport. The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport.
This squirrel, who was looking for a treat, has become desensitized to humans. The distance between This squirrel, who was looking for a treat, has become desensitized to humans. The distance between
Technique of Light Palpation Technique of Light Palpation
How to find the distance of any line segment How to find the distance of any line segment
energy of interaction and distance of particle energy of interaction and distance of particle
LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ... LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ...
Video: Segmentation and migrating motility complexes & Gastroileal reflex

For a complete list of videos, visit our video library