Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

first image from VISTA

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » Topic Forums » Science Donate to DU
 
pokerfan Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:22 PM
Original message
first image from VISTA
This image is of the Flame Nebula, a star forming gas cloud in Orion. The bright star in the image is the monster blue supergiant Alnitak, which is the easternmost (left, to northern observers) star in Orion’s belt.

http://blogs.discovermagazine.com/badastronomy/2009/12/11/incredible-vista-of-the-cosmos">

Click on the picture to find a link to the big image courtesy of Phil Plait, the Bad Astronomer.
Printer Friendly | Permalink |  | Top
n2doc Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:24 PM
Response to Original message
1. pretty! n/t
Printer Friendly | Permalink |  | Top
 
sazemisery Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:25 PM
Response to Original message
2. That is teh awesome! Thanks for the link.
:hi:
Printer Friendly | Permalink |  | Top
 
WillParkinson Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:25 PM
Response to Original message
3. Is it just me....
Edited on Fri Dec-11-09 12:26 PM by WillBowden
Or can you find other shapes in here?

The top right side - the blue glowing part - looks like the eye of a lion. If you move down just a tad you can see the nose and mouth. The cloud behind it looks like a cosmic mane.

Or perhaps I'm just overly tired.

(On edit: Go with the tired. I just completely mangled "perhaps".)

Printer Friendly | Permalink |  | Top
 
laughingliberal Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:30 PM
Response to Reply #3
4. I see man with a beard nt
Printer Friendly | Permalink |  | Top
 
pokerfan Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:46 PM
Response to Reply #3
8. I see a horse's head.... :)
But yeah, one can find all kinds of things in the chaos of clouds. This looks like a human hand to me.



Probably looking to snatch a starship...


Printer Friendly | Permalink |  | Top
 
lapfog_1 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:31 PM
Response to Original message
5. "To prevent war, the galaxy is on Orion's belt." (collar!) - n/t
Printer Friendly | Permalink |  | Top
 
GreenPartyVoter Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:37 PM
Response to Original message
6. I love, love, love pictures of nebulae! Thanks for sharing this one. :^)
Printer Friendly | Permalink |  | Top
 
silverweb Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 12:44 PM
Response to Original message
7. Beautiful!
Printer Friendly | Permalink |  | Top
 
inna Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 01:05 PM
Response to Original message
9. WOW!


:wow:


Printer Friendly | Permalink |  | Top
 
tridim Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 01:10 PM
Response to Original message
10. Is Vista the scope with the laser/atmosphere correction feature?
I'm losing track of all the new machines.
Printer Friendly | Permalink |  | Top
 
pokerfan Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 01:20 PM
Response to Reply #10
11. VISTA is the new European infrared scope
http://en.wikipedia.org/wiki/VISTA_%28telescope%29

Active/adaptive optics aren't not that uncommon anymore. I first saw one at the MMT ten years ago.
Printer Friendly | Permalink |  | Top
 
tridim Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 01:23 PM
Response to Reply #11
12. Yea I was just reading about it..
Seems they're now retrofitting older scopes with the new adaptive optics. The solution is genius IMO.
Printer Friendly | Permalink |  | Top
 
pokerfan Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 01:41 PM
Response to Reply #12
13. Yeah, it's ingenious
In theory, it seems an obvious notion, not terribly unlike many things that are done in electronics (my field) such as communications (my specialty). But when I had it explained to me, I was more astonished at the mechanical engineering involved than the electronics.

Still, all things being equal, nothing beats an equivalently sized space telescope. But then again, things aren't equal, what with launch constraints and costs. So it's a terrific way for terrestrial scopes to rival and surpass their space-bound versions.
Printer Friendly | Permalink |  | Top
 
Fumesucker Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Dec-12-09 11:55 AM
Response to Reply #11
18. Even amateurs are using a form of adaptive optics for planetary imaging these days..
http://www.stellarproducts.com/

Stellar Products was the first company to manufacture standard adaptive optics systems to both amateur and professional astronomers. The AO-2 adaptive optics system provided image stabilization for planetary photography. The AO-5 adaptive optics system will provide correction of defocus and astigmatism as well as image stabilization. Either of these systems allows the astronomer to improve his images to the limit of his telescope.


I first read of adaptive optics for astronomy in the late sixties in a Scientific American book of projects, it was a system which used beam splitter prisms controlled by photomultiplier tubes through an amplifier to stabilize an image on photographic film.
Printer Friendly | Permalink |  | Top
 
Canuckistanian Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 01:47 PM
Response to Original message
14. Wow
I've been looking at Alnitak my whole life. I had no idea it looked like that close up.

Astounding.

Printer Friendly | Permalink |  | Top
 
pokerfan Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 02:05 PM
Response to Reply #14
15. It's not even that high a magnification
The image area is actually about equal to that of two full moons. It's just faint. That and the fact that we are seeing it in the infrared. The same nebula through a much more modest scope:


Printer Friendly | Permalink |  | Top
 
Canuckistanian Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Dec-11-09 02:44 PM
Response to Reply #15
16. Ah, Infra-Red
So this is a view I could never see through a normal telescope.

It's still amazing.
Printer Friendly | Permalink |  | Top
 
Posteritatis Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Dec-12-09 11:35 AM
Response to Reply #16
17. I think IR filters are relatively cheap these days
Well, "cheap" by the standards of telescopes, that is. So you might not be able to get that view with that ridiculous level of detail, but you could meander in that direction.
Printer Friendly | Permalink |  | Top
 
Fumesucker Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Dec-12-09 11:59 AM
Response to Reply #17
19. Actually, keeping infrared *out* of digital cameras is the problem
For most "normal" photography.

Infrared will bias your images to a very strong red hue if it gets into your detector, even very cheap webcams have an infrared blocking filter to keep the color balance more accurate.

Printer Friendly | Permalink |  | Top
 
Posteritatis Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Dec-12-09 12:28 PM
Response to Reply #19
20. I meant for the telescopes themselves, but yeah
I've played around a (very) little with IR photography and kinda want to do so more. I mainly meant that if someone wants to view IR through a telescope it's a bit of a pain but, from what I've seen, far from impossible. Not to VISTA's extent obviously, but still.
Printer Friendly | Permalink |  | Top
 
eppur_se_muova Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Dec-13-09 05:13 AM
Response to Original message
21. More pix from BBC ...
Printer Friendly | Permalink |  | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Thu Dec 26th 2024, 07:21 PM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » Topic Forums » Science Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC