This topic contains a solution. Click here to go to the answer

Author Question: A(n) ____________________ is used to measure the brightness and color of stars. Fill in the ... (Read 31 times)

karateprodigy

  • Hero Member
  • *****
  • Posts: 550
A(n) ___________________ _ is used to measure the brightness and color of stars.
 
  Fill in the blank(s) with correct word

Question 2

Proxima Centauri has an absolute visual magnitude of 15.5 and an apparent visual magnitude of 11.0 . What is the distance to Proxima Centauri in units of pc?
 
  a. 0.1 b. 100.1
  c. 100.1 d. None of the other choices are correct.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

succesfull

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

photometer

Answer to Question 2

b





 

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

For a complete list of videos, visit our video library