HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Main » The DU Lounge (Forum) » My wife was watching Cosm...

Mon Mar 24, 2014, 10:12 PM

My wife was watching Cosmos last night and NdT was talking about comets in the Oort cloud.

She asked me to pose this question:


If the items in the Oort cloud can be pulled free and Pluto is in the Oort cloud could it be possible that Pluto might become a comet one day?

12 replies, 1130 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 12 replies Author Time Post
Reply My wife was watching Cosmos last night and NdT was talking about comets in the Oort cloud. (Original post)
diabeticman Mar 2014 OP
Ptah Mar 2014 #1
diabeticman Mar 2014 #4
Callmecrazy Mar 2014 #2
diabeticman Mar 2014 #3
Callmecrazy Mar 2014 #5
pokerfan Mar 2014 #7
diabeticman Mar 2014 #8
Sekhmets Daughter Mar 2014 #6
ashling Mar 2014 #9
sakabatou Mar 2014 #10
Deep13 Mar 2014 #11
Wounded Bear Mar 2014 #12

Response to diabeticman (Original post)

Mon Mar 24, 2014, 10:17 PM

1. no

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Ptah (Reply #1)

Mon Mar 24, 2014, 10:25 PM

4. Thanks.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to diabeticman (Original post)

Mon Mar 24, 2014, 10:19 PM

2. Pluto is not in the Oort Cloud...

The Oort Cloud is nearly a light year away, according to some.

http://en.wikipedia.org/wiki/Oort_cloud

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Callmecrazy (Reply #2)

Mon Mar 24, 2014, 10:25 PM

3. oh, I will tell her. She was under the impression that it was the tip/beginning of the cloud on the

edge.

She was afraid it would be a stupid question. She does love the cosmos reboot she says she is learning a lot more than in school.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to diabeticman (Reply #3)

Mon Mar 24, 2014, 10:28 PM

5. I'm watching it on NatGeo as I write this post!

It's a great show.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to diabeticman (Reply #3)

Mon Mar 24, 2014, 11:28 PM

7. Not a stupid question

because it's essentially a question of taxonomy. FWIW, today Pluto is considered a Kuiper Belt object, a collection of minor planets and asteroids.

More here: The Kuiper Belt and The Oort Cloud

Reply to this post

Back to top Alert abuse Link here Permalink


Response to pokerfan (Reply #7)

Mon Mar 24, 2014, 11:31 PM

8. Thanks

Reply to this post

Back to top Alert abuse Link here Permalink


Response to diabeticman (Original post)

Mon Mar 24, 2014, 11:06 PM

6. Comets are made of ice and dust.

While Pluto's exact composition is unknown, it appears to be about 70% rock and 30 % ice and water,... so even if it were in the Oort Cloud, it couldn't become a comet.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Sekhmets Daughter (Reply #6)

Mon Mar 24, 2014, 11:56 PM

9. Unless they change the definition of comets

like they changed the definition of Pluto




Reply to this post

Back to top Alert abuse Link here Permalink


Response to diabeticman (Original post)

Tue Mar 25, 2014, 12:28 AM

10. No

Pluto is not part of the Oort cloud. It's a trans-Neptunian object.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to diabeticman (Original post)

Tue Mar 25, 2014, 12:52 AM

11. Not in the Oort cloudy, but barely possible ...

...it could be knocked out of the Kuiper Belt to become a comet. Pretty damned unlikely, though.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to diabeticman (Original post)

Tue Mar 25, 2014, 02:03 AM

12. I'm not so sure as some here that Pluto couldn't be knocked out of orbit...

It does cross the orbit of Neptune. It seems to me if it actually crosses the orbit of another planet, a near miss would be somewhat of a certainty at some time in the future.

I believe it is rather large for a comet, though. But if it did get knocked out of orbit some time in the future, it could get interesting.

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread