APOD: Tentacles of the Tarantula Nebula (2010 May 18)

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APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by APOD Robot » Tue May 18, 2010 3:51 am

Image Tentacles of the Tarantula Nebula

Explanation: The largest, most violent star forming region known in the whole Local Group of galaxies lies in our neighboring galaxy the Large Magellanic Cloud (LMC). Were the Tarantula Nebula at the distance of the Orion Nebula -- a local star forming region -- it would take up fully half the sky. Also called 30 Doradus, the red and pink gas indicates a massive emission nebula, although supernova remnants and dark nebula also exist there. The bright knot of stars left of center is called R136 and contains many of the most massive, hottest, and brightest stars known. The above image taken with the European Southern Observatory's (ESO's) Wide Field Imager is one of the most detailed ever of this vast star forming region. A recent Hubble image of part of the nebula has uncovered a very massive star escaping from the region.

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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by neufer » Tue May 18, 2010 4:23 am

APOD Robot wrote:Image Tentacles of the Tarantula Nebula

A recent Hubble image of part of the nebula has uncovered a very massive star escaping from the region.
  • Clint Eastwood?
http://en.wikipedia.org/wiki/Tarantula_%28film%29 wrote:
1955 Movie Poster by Reynold Brown
Image

<<Tarantula is a 1955 science fiction film directed by Jack Arnold, and starring Leo G. Carroll, John Agar, and Mara Corday.

The plot concerns a biological researcher, Professor Gerald Deemer who is trying to prevent the food shortages which will result from the world's expanding population. With the help of atomic science, he invents a special nutrient on which animals can live exclusively, but which causes them to grow to many times their normal size. In his laboratory, he houses several oversized rodents and, inexplicably, a Mexican red rumped tarantula.
.......................................................
Prof. Gerald Deemer: The disease of hunger, like most diseases, well, it spreads. There are 2 billion people in the world today. In 1975 there'll be 3 billion. In the year 2000, there'll be 3,625,000,000. The world may not be able to produce enough food to feed all these people. Now perhaps you'll understand what an inexpensive nutrient will mean.

Dr. Matt Hastings: Well, not many of us look that far in the future, sir.

Prof. Gerald Deemer: Our business is the future. No man can do it on his own, of course. You don't pull it out of your hat like a magician's rabbit. You - well, you build on what hundreds of others have learned before you.
.......................................................
When his researchers try the nutrient, they develop runaway acromegaly and one of them is driven mad, half destroys the lab (freeing the animals) and attacks Deemer and injects him with the solution. Sadly, the tarantula is one of the creatures freed. As a result, Deemer gradually becomes more and more deformed while the now-gigantic tarantula ravages the countryside. A sympathetic doctor and Deemer's female assistant investigate the mystery of the clean-picked cattle bones and the eight-foot pools of arachnid venom, and the spider is eventually destroyed, after several failed attempts, by a napalm attack launched from a fighter squadron.

Among other things, the film is notable for the appearance of a 25-year-old Clint Eastwood in an uncredited role as a jet pilot at the end of the film. A poster of this movie, along with a poster of Revenge of the Creature, are seen in Back to the Future Part III, right after Doc Brown asks Marty who Clint Eastwood is. Marty replies "That's right; you haven't heard of him yet." This is an ironic coincidence, as Revenge of the Creature and Tarantula our two of Clint Eastwood's first feature film roles; In both he appears, uncredited. In Revenge of the Creature he appears as a lab technician and in Tarantula he appears as a jet pilot.

The special effects for both the giant animals and the unfortunate scientist's deformity are fairly advanced for the time, with real animals (including a rabbit and a guinea pig in Professor Deemer's lab) being used to represent the giant creatures. A real spider was also used for shots where the whole monster was shown, with models reserved for close-ups (and its skyscraper-sized version), resulting in a rather more convincing monster than the giant ants in the previous year's big-bug film, Them!.

The movie was filmed in and around the rock formations of "Dead Man's Point" Lucerne Valley CA, a frequently used movie location for many early western films. Like Them!, Tarantula makes atmospheric use of its desert locations; and although a radioactive isotope does make an appearance, it differs from most big-bug films in having the mutation caused by the peaceful research of a well-intentioned scientist rather than nuclear weapons and/or a mad genius. Arnold was to use matte effects again two years later to show miniaturisation rather than gigantism in The Incredible Shrinking Man, which also featured an encounter with a spider.
.......................................................
Stephanie 'Steve' Clayton: What does it look like?

Dr. Matt Hastings: Oh, like something from another life scienc... quiet, yet strangely evil as if it were hiding its secrets from man.

Stephanie 'Steve' Clayton: You make it sound so creepy.

Dr. Matt Hastings: The unknown always is.
---------------------------------------------------->>
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by Beyond » Tue May 18, 2010 4:48 am

I'm trying to figure out how three really heavy stars managed to throw a heavy star out of the place where it was formed.
It would seem to be 'normal' to assume that the gravity from the three really heavy stars would tend to pull the heavy star into their midst.
Either these three really heavy stars are very smart, or they've passed some pretty powerful Gas and the heavy star left because He had a good sense of smell. That would of course make the three really heavy stars quite :oops: to say the least.
I'll bet all the other stars in that region are laughing their coronas off. Ya think :?:
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by Chris Peterson » Tue May 18, 2010 5:05 am

beyond wrote:I'm trying to figure out how three really heavy stars managed to throw a heavy star out of the place where it was formed.
It would seem to be 'normal' to assume that the gravity from the three really heavy stars would tend to pull the heavy star into their midst.
Gravity doesn't generally pull things together. What it does with multiple bodies is to cause them to orbit one another. Two body systems are stable. Three body (and more) systems are generally not. When you have three bodies of roughly similar mass, it is very easy for angular momentum to get exchanged. That can result in an increase in orbital velocity, which can change a closed elliptical orbit into an open hyperbolic orbit. The result is a runaway star.
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by JuanAustin » Tue May 18, 2010 5:21 am

Didn't I read somewhere that the LMC and the SMC are remanants of galaxies?
Would it be safe to assume that these are the leftover denser cores of canabalized galaxies by the Milky Way?
Have any black holes been detected in either?
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by biddie67 » Tue May 18, 2010 12:18 pm

WOW .... just imagine if that whole area DID fill our night sky (without hurting us), what a sight!! But then there would be so much light at night that our whole world would have evolved so differently - plus street lights probably wouldn't have been necessary.

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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by neufer » Tue May 18, 2010 1:07 pm

biddie67 wrote:WOW .... just imagine if that whole area DID fill our night sky (without hurting us), what a sight!! But then there would be so much light at night that our whole world would have evolved so differently - plus street lights probably wouldn't have been necessary.
Apparent magnitude of the Tarantula Nebula (at 49,000 pc) = +8
Apparent magnitude of the Orion Nebula (at 412 pc) = +4

Apparent magnitude of the Tarantula Nebula at 412 pc = +8 - 5 log(49,000/412) = -2.4

Apparent magnitude of Sirius plus Canopus = - 1.86

Minimum magnitude of the moon (due to earth shine) = -2.5

Apparent magnitude of Mars = +1.8 to −2.91

Apparent magnitude of Jupiter = -1.6 to -2.94

Apparent magnitude of Venus = -3.8 to -4.6

Ergo: the moon, Venus (& either Mars or Jupiter at opposition) would always outshine a nearby Tarantula Nebula.
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by Chris Peterson » Tue May 18, 2010 1:54 pm

biddie67 wrote:WOW .... just imagine if that whole area DID fill our night sky (without hurting us), what a sight!! But then there would be so much light at night that our whole world would have evolved so differently - plus street lights probably wouldn't have been necessary.
The Tarantula Nebula (like all nebulas) is just dim a dim gray glow. If we were in the middle of it, the night sky would be a little brighter- like the Milky Way covered it. It wouldn't provide enough light to comfortably read by.

Nebulas don't get brighter when you get closer to them.
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by Beyond » Tue May 18, 2010 5:01 pm

Now that i have found out how orbiting bodies and gravity work, i can interject my 3c worth about Clint Eastwood.

I first saw Clint Eastwood in a brand new western called "RAWHIDE". I remember reading or hearing about a month later that after the second show there was such a demand for more of Client Eastwood, the producers were having a hard time beliving it! So they wrote bigger parts for "Rowdy Yates" and the rest as they say, is History.
I don't know if he was in anything else between the no-credit parts and Rowdy Yates, but i do remember that he had a very good screen presence.
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by biddie67 » Tue May 18, 2010 5:17 pm

OK youse guys - (that's neufer and chris peterson) - I guess that I'm disappointed that my alternate street light theory was blown to pieces ... I was envisioning that the whole Tarantula Nebula was close enough that its embedded stars would outshine all the other good members of our night skies - like a triple full moon. Oh, well ...

But I do like that you are willing to come back with some specific info that helps me get real - well, maybe a little more real .... (( grin )) Thanks!!

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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by biddie67 » Tue May 18, 2010 7:00 pm

P.S. I forgot to mention that I think that the photo is absolutely magnificent!!

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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by Beyond » Tue May 18, 2010 9:42 pm

I have found that most space photos are magnificent. However, due to much better equipment that sees much more detail, i find that most of the pictures do not match the old names anymore.
This picture being of no exception.
To me this picture of the Tarantula Nebula looks more like something the Tarantula has already sucked the life out of.
OH-well, thats just the way it is now.
Thats why i have so many Birch & Root :b: s to quell the pain of it all.
Last edited by Beyond on Wed May 19, 2010 3:07 am, edited 1 time in total.
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by neufer » Tue May 18, 2010 10:18 pm

---------------------------------
TENTACLE, n. [NL. tentaculum, from L. tentare to handle, feel: cf. F. tentacule. See TEMPT] (Zoöl.) A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being either an organ of sense, prehension, or motion.

TEMPT, v. t. [OE. tempten, tenten, from OF. tempter, tenter, F. tenter, fr. L. tentare, temptare, to handle, feel, attack, to try, put to the test]
---------------------------------
TENTACLE n. A covert pseudo. An artificial identity created in cyberspace for nefarious and deceptive purposes. Source: Jargon File.
---------------------------------
H.G. Wells (1866–1946). The War of the Worlds. 1898.

I crouched, watching this fighting-machine closely, satisfying myself now for the first time that the hood did indeed contain a Martian. As the green flames lifted I could see the oily gleam of his integument and the brightness of his eyes. And suddenly I heard a yell, and saw a long TENTACLE reaching over the shoulder of the machine to the little cage that hunched upon its back. Then something—something struggling violently—was lifted high against the sky, a black, vague enigma against the starlight; and as this black object came down again, I saw by the green brightness that it was a man. For an instant he was clearly visible. He was a stout, ruddy, middle-aged man, well dressed; three days before, he must have been walking the world, a man of considerable consequence. I could see his staring eyes and gleams of light on his studs and watch chain. He vanished behind the mound, and for a moment there was silence. And then began a shrieking and a sustained and CHEERFUL HOOTING from the Martians.
..........................
Suddenly I heard a noise without, the run and smash of slipping plaster, and the triangular aperture in the wall was darkened. I looked up and saw the lower surface of a handling-machine coming slowly across the hole. One of its gripping limbs curled amid the debris; another limb appeared, feeling its way over the fallen beams. I stood petrified, staring. Then I saw through a sort of glass plate near the edge of the body the face, as we may call it, and the large dark eyes of a Martian, peering, and then a long metallic snake of TENTACLE came feeling slowly through the hole.

I turned by an effort, stumbled over the curate, and stopped at the scullery door. The TENTACLE was now some way, two yards or more, in the room, and twisting and turning, with queer sudden movements, this way and that. For a while I stood fascinated by that slow, fitful advance. Then, with a faint, hoarse cry, I forced myself across the scullery. I trembled violently; I could scarcely stand upright. I opened the door of the coal cellar, and stood there in the darkness staring at the faintly lit doorway into the kitchen, and listening. Had the Martian seen me? What was it doing now?

Something was moving to and fro there, very quietly; every now and then it tapped against the wall, or started on its movements with a faint metallic ringing, like the movements of keys on a split-ring. Then a heavy body—I knew too well what—was dragged across the floor of the kitchen towards the opening. Irresistibly attracted, I crept to the door and peeped into the kitchen. In the triangle of bright outer sunlight I saw the Martian, in its Briareus of a handling-machine, scrutinizing the curate’s head. I thought at once that it would infer my presence from the mark of the blow I had given him.

I crept back to the coal cellar, shut the door, and began to cover myself up as much as I could, and as noiselessly as possible in the darkness, among the firewood and coal therein. Every now and then I paused, rigid, to hear if the Martian had thrust its TENTACLES through the opening again.

Then the faint metallic jingle returned. I traced it slowly feeling over the kitchen. Presently I heard it nearer—in the scullery, as I judged. I thought that its length might be insufficient to reach me. I prayed copiously. It passed, scraping faintly across the cellar door. An age of almost intolerable suspense intervened; then I heard it fumbling at the latch! It had found the door! The Martians understood doors!

It worried at the catch for a minute, perhaps, and then the door opened.

In the darkness I could just see the thing—like an elephant’s trunk more than anything else—waving towards me and touching and examining the wall, coals, wood and ceiling. It was like a black worm swaying its blind head to and fro.

Once, even, it touched the heel of my boot. I was on the verge of screaming; I bit my hand. For a time the TENTACLE was silent. I could have fancied it had been withdrawn. Presently, with an abrupt click, it gripped something—I thought it had me!—and seemed to go out of the cellar again. For a minute I was not sure. Apparently it had taken a lump of coal to examine.
..........................
On the twelfth day my throat was so painful that, taking the chance of alarming the Martians, I attacked the creaking rain-water pump that stood by the sink, and got a couple of glassfuls of blackened and tainted rain water. I was greatly refreshed by this, and emboldened by the fact that no enquiring TENTACLE followed the noise of my pumping.
----------------------------
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by Beyond » Wed May 19, 2010 3:15 am

Yet again i seem to have run into a never ending story :(

Perhaps later :?:
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by bystander » Wed Jun 09, 2010 11:56 pm


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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by owlice » Thu Jun 10, 2010 2:02 am

neufer wrote:---------------------------------
put to the test
---------------------------------
CHEERFUL HOOTING
Ah, the CHEERFUL HOOTING of one whose been put to the test and had a good meal as a result!

:: flexes her talons ::

This APOD is one of my favorites; I find it very beautiful.
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by neufer » Thu Jun 10, 2010 3:11 am

owlice wrote:
Ah, the CHEERFUL HOOTING of one whose been put to the test and had a good meal as a result!
I crept back to the coal cellar, shut the door, and began to coVER myself up as much as I could, and as noiselessly as possible in the darkness, among the firewood and coal therein. EVERy now and then I paused, rigid, to hear if the Martian had thrust her TENTACLES through the opening again. Once, even, it touched the heel of my boot. I was on the VERgE of screaming; I bit my hand.
owlice wrote:
:: flexes her talons ::
http://en.wikipedia.org/wiki/Talent_%28measurement%29 wrote:
<<The talent (Latin: talentum, from Ancient Greek: τάλαντον "scale, balance") was one of several ancient units of mass, as well as corresponding units of value equivalent to these masses of a precious metal. A Greek, or Attic talent, was 26 kg, a Roman talent was 32.3 kg, and a Babylonian talent was 30.3 kg. Ancient Palestine adopted the Babylonian talent, but later revised the mass. An Attic talent of silver had a purchasing power of approximately $20,000 [or about] the amount of silver that would pay a month's wages of a trireme crew. The heavy common talent, used in New Testament times, was 58.9 kg. Solomon received 666 gold talents a year. Jesus's parable of the talents is the origin of the sense of the word "talent" meaning "gift or skill" as used in English and other languages.>>
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Re: APOD: Tentacles of the Tarantula Nebula (2010 May 18)

Post by owlice » Thu Jun 10, 2010 3:28 am

neufer wrote:I bit my hand.
SO unfair, that; you're having all the fun!
neufer wrote:
http://en.wikipedia.org/wiki/Talent_%28measurement%29 wrote:
<<The talent (Latin: talentum, from Ancient Greek: τάλαντον "scale, balance") was one of several ancient units of mass, as well as corresponding units of value equivalent to these masses of a precious metal. A Greek, or Attic talent, was 26 kg, a Roman talent was 32.3 kg, and a Babylonian talent was 30.3 kg. Ancient Palestine adopted the Babylonian talent, but later revised the mass. An Attic talent of silver had a purchasing power of approximately $20,000 [or about] the amount of silver that would pay a month's wages of a trireme crew. The heavy common talent, used in New Testament times, was 58.9 kg. Solomon received 666 gold talents a year. Jesus's parable of the talents is the origin of the sense of the word "talent" meaning "gift or skill" as used in English and other languages.>>
Oh, interesting stuff about the talent; you know how fond I am of talents! Thanks!
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