« previous next »

Author Question: The diurnal rotation of the stars refers to the A) apparent rotation of the celestial sphere due ... (Read 51 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?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Apparent and True Orbits of Alpha Centauri. Apparent and True Orbits of Alpha Centauri.
The Spectra of Stars with Different Surface Temperatures. The Spectra of Stars with Different Surface Temperatures.
Rotation sites for administering insulin. Rotation sites for administering insulin.
After adjusting the valves that are closed, rotate the engine one full rotation until the engine ... After adjusting the valves that are closed, rotate the engine one full rotation until the engine ...
Earth’s Revolution and Rotation Earth’s Revolution and Rotation
Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ... Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ...
Video: Mendel's Principles of Inheritance (Father of Genetics)

For a complete list of videos, visit our video library