« previous next »

Author Question: The diurnal rotation of the stars refers to the A) apparent rotation of the celestial sphere due ... (Read 28 times)

MGLQZ

  • Hero Member
  • *****
  • Posts: 579
on: Jul 29, 2018
The diurnal rotation of the stars refers to the
 
  A) apparent rotation of the celestial sphere due to the rotation of the Earth.
  B) movement of the stars across the sky during daytime hours.
  C) rate of spin of stars in their formation stage.
  D) particular constellations that are visible in different times of the year.

Question 2

What is the upper limit of stars the unaided eye can discern on a moonless night in a rural area?
 
  A) about 3000
  B) about 30,000
  C) about 300,000
  D) about 3,000,000


Jmfn03

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth
Stars vary widely in size. Stars vary widely in size.
Synchronous Rotation of the Moon Synchronous Rotation of the Moon
Apparent Magnitude Scale Apparent Magnitude Scale
Apparent Magnitude Scale Apparent Magnitude Scale
A peptide bond configurations, trans and cis (rotation around the CCO-N bond) A peptide bond configurations, trans and cis (rotation around the CCO-N bond)
Video: Lipid absorption - end products & transport mechanism

For a complete list of videos, visit our video library