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

Author Question: How did Tycho's detailed observations of Mars' brightness help show that its orbit could not be ... (Read 50 times)

Medesa

  • Hero Member
  • *****
  • Posts: 507
on: Jul 27, 2018
How did Tycho's detailed observations of Mars' brightness help show that its orbit could not be circular?
 
  What will be an ideal response?

Question 2

What is the approximate luminosity of a main-sequence M star?
 
  A) 106 solar B) 1 solar C) 10 solar D) 0.01 solar


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 27, 2018
Answer to Question 1

Tycho noted that at some oppositions, Mars was much brighter than at others, suggesting that Mars must be closer to us when it was brighter.

Answer to Question 2

D


Medesa

  • Member
  • Posts: 507
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

sultansheikh

  • Member
  • Posts: 335
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Rivers on Mars and Earth Rivers on Mars and Earth
Scattergrams are a mechanism used by political scientists to show patterns and relationships among v Scattergrams are a mechanism used by political scientists to show patterns and relationships among v
Saltwater on Mars Saltwater on Mars
Adults in the Berlin Study of Aging show earlier declines on tests of nonverbal, fluid tasks (upper ... Adults in the Berlin Study of Aging show earlier declines on tests of nonverbal, fluid tasks (upper ...
Using your fingertips at the edge of the eye orbit, apply L stroke down to chin and back toward the ... Using your fingertips at the edge of the eye orbit, apply L stroke down to chin and back toward the ...
Harvard Alumni Study show who are more physically active in middle adulthood Harvard Alumni Study show who are more physically active in middle adulthood
Video: Major Elements in Biological Molecules: Carbohydrates

For a complete list of videos, visit our video library