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

Author Question: Contrast the open vs. globular clusters in terms of age, color, galactic distribution, chemical ... (Read 32 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667
on: Jul 27, 2018
Contrast the open vs. globular clusters in terms of age, color, galactic distribution, chemical composition, and populations.
 
  What will be an ideal response?

Question 2

The Copernican Principle notes that we are nothing special, not at the center of anything. Apply it to the work of Harlow Shapley.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

Open star clusters usually are younger, bluer, lie close to the galactic disk, are richer in metals, and belong to Population I. Older globular clusters are all over the halo, are dominated by evolved red giants, are much richer in numbers, and are classified in population II.

Answer to Question 2

While Herschel's star counts suggested that the solar system lay near the center of the Milky Way, Shapley noted that dust was blocking our view of all but the closest parts of the Galaxy. Shapley's globular clusters lay above the halo, well above the dust clouds of the galactic plane, and showed that we lie about 8 kpc distant from the center in Sagittarius.


go.lag

  • Member
  • Posts: 667
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

Dominic

  • Member
  • Posts: 328
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Understanding cells in terms of their molecular components. Understanding cells in terms of their molecular components.
Sibling relationships can be intense, in terms of both having fun together and engaging in conflict. Sibling relationships can be intense, in terms of both having fun together and engaging in conflict.
Color-enhanced electron micrograph of E. coli undergoing cell division Color-enhanced electron micrograph of E. coli undergoing cell division
Distribution of F1 and F2 Progeny Derived from a Theoretical Cross Involving Tomatoes Distribution of F1 and F2 Progeny Derived from a Theoretical Cross Involving Tomatoes
A chemical reaction is run in which 447 Joules of work is done by the system and A chemical reaction is run in which 447 Joules of work is done by the system and
Polygenic inheritance of wheat kernel color controlled by two additive genes Polygenic inheritance of wheat kernel color controlled by two additive genes
Video: Dissociative Disorders (Part 1)

For a complete list of videos, visit our video library