You need to login first

Login information

Haven't yet registered?

×
* * * *

Donate

If you found our community helpful, your small donation will continue to help us reach more students around the globe.
PayPal
Pages: 1     Go Down
  New Topic  |  Print  
What is the difference between cosmos,nebulae,galaxy?
Read 2217 times | 6 Replies | Average Rating: Not Rated Yet
barathvaj
Piranha
***
Posts: 237
Points: 1524
Rep:  +2   -0


For a more comfortable homework help experience, try HomeworkClinic.com.
Can any one make me clear in this confusion with a definition for each Question Mark

Report this PostReport Abuse

~BvS~I'm a student for all those who teaches
Reply# 1
Posts: 1
Points: 60
Rep:  +0   -0

3 years ago

Cosmos: an alternative name for the universe.

Nebula: a cloud of gas in space, usually one that is glowing.

Galaxy: a huge collection of anywhere from a few hundred million to more than a trillion stars, all bound together by gravity.

Source: The Cosmic Perspective 6th Edition



Report this PostReport Abuse
Reply# 2
Posts: 237
Points: 1524
Rep:  +2   -0

3 years ago

Thanks,Then Can i say nebula is also a part of galaxy ?



Report this PostReport Abuse
 
Reply# 3
Posts: 237
Points: 1524
Rep:  +2   -0

3 years ago

Can i say nebula is also a part of galaxy ? or a galaxy may have a nebula?



Report this PostReport Abuse
 
Reply# 4
Posts: 43
Points: 455
Rep:  +0   -1

3 years ago

Originally, the word "nebula" referred to almost any extended astronomical object (other than planets and comets). The etymological root of "nebula" means "cloud". As is usual in astronomy, the old terminology survives in modern usage in sometimes confusing ways. We sometimes use the word "nebula" to refer to galaxies, various types of star clusters and various kinds of interstellar dust/gas clouds. More strictly speaking, the word "nebula" should be reserved for gas and dust clouds and not for groups of stars.



Report this PostReport Abuse
 
Reply# 5
*
Posts: 7839
Points: 4043
Rep:  +345   -10

3 years ago

A nebula is technically a cloud of gas or dust in space while a galaxy is a much larger structure of billions of stars, usually including many smaller nebulae. However, in some older astronomy literature, all "fuzzy objects" were called nebulae, even if they were technically galaxies. This is because scientists had not yet established that galaxies were, in fact, objects outside the Milky Way. They were presumed to be among the local gas & dust objects in our own galaxy. Edwin Hubble made the essential determination that some "nebulae" were considerably further away than other objects in the milky way and were, in fact, separate galaxies.



Report this PostReport Abuse
 
Reply# 6
Posts: 237
Points: 1524
Rep:  +2   -0

3 years ago

To view this post & more...
You'll need to login or register
thanks for both of u



Report this PostReport Abuse
 
Pages: 1     Go Up New Topic Print
 
Related Topics
Replies Author Last post
3
Replies
Study Guides and Resources | Started by biolove | Views: 3268
Last post Last post by biolove
3 years ago
0
Replies
News Articles and Discussion | Started by Nelson Muntz | Views: 124
Last post Last post by Nelson Muntz
A year ago
3
Replies
Physics and Astronomy | Started by barry | Views: 201
Last post Last post by barry
12 months ago
2
Replies
Physics and Astronomy | Started by barry | Views: 137
Last post Last post by barry
12 months ago
Note: This topic is currently locked from adding new posts. Only administrators and moderators can reply. If you'd like to contribute to this topic, start a new thread and make reference to this one. Otherwise, contact a moderator for more options.