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

Author Question: Absolute visual magnitude is a. the apparent magnitude of a star observed from Earth. b. the ... (Read 60 times)

D2AR0N

  • Hero Member
  • *****
  • Posts: 561
on: Jul 27, 2018
Absolute visual magnitude is
 
  a. the apparent magnitude of a star observed from Earth.
  b. the luminosity of a star observed from a distance of 1000 pc.
  c. the apparent magnitude of a star observed from a distance of 10 pc.
  d. the luminosity of a star observed from Earth.
  e. the apparent magnitude of a star observed from a distance of 10 pc and the luminosity of a star observed from Earth.

Question 2

A telescope that suffers from chromatic aberration and has a low light-gathering power is most likely
 
  a. a small-diameter reflecting telescope.
  b. a small-diameter refracting telescope.
  c. a large-diameter refracting telescope.
  d. a large-diameter reflecting telescope.
  e. an infrared telescope.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

snackralk

  • Sr. Member
  • ****
  • Posts: 363
Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

b


D2AR0N

  • Hero Member
  • *****
  • Posts: 561
Reply #2 on: Jul 27, 2018
TY


snackralk

  • Sr. Member
  • ****
  • Posts: 363
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

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?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Artist's conception of the birth of a star within a dense molecular cloud. Artist's conception of the birth of a star within a dense molecular cloud.
Size comparison of Earth and Uranus Size comparison of Earth and Uranus
Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Blobs and Stripes in Visual Cortex Blobs and Stripes in Visual Cortex
Early Earth Early Earth
Earth Present Earth Present
Video: Stimulus (introduction)

For a complete list of videos, visit our video library