APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Comments and questions about the APOD on the main view screen.
Post Reply
User avatar
APOD Robot
Otto Posterman
Posts: 5589
Joined: Fri Dec 04, 2009 3:27 am
Contact:

APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by APOD Robot » Thu Jan 31, 2013 5:06 am

Image NGC 4372 and the Dark Doodad

Explanation: The delightful Dark Doodad Nebula drifts through southern skies, a tantalizing target for binoculars in the constellation Musca, The Fly. The dusty cosmic cloud is seen against rich starfields just south of the prominent Coalsack Nebula and the Southern Cross. Stretching for about 3 degrees across this scene the Dark Doodad seems punctuated at its southern tip (lower left) by globular star cluster NGC 4372. Of course NGC 4372 roams the halo of our Milky Way Galaxy, a background object some 20,000 light-years away and only by chance along our line-of-sight to the Dark Doodad. The Dark Doodad's well defined silhouette belongs to the Musca molecular cloud, but its better known alliterative moniker was first coined by astro-imager and writer Dennis di Cicco in 1986 while observing comet Halley from the Australian outback. The Dark Doodad is around 700 light-years distant and over 30 light-years long.

<< Previous APOD This Day in APOD Next APOD >>
[/b]

User avatar
neufer
Vacationer at Tralfamadore
Posts: 18805
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by neufer » Thu Jan 31, 2013 5:29 am

Image
http://en.wikipedia.org/wiki/Flypaper wrote:
<<Flypaper (also known as fly ribbon) is a fly-killing device made of paper coated with a sweetly fragrant, but extremely sticky and sometimes poisonous substance that traps flies and other flying insects when they land upon it.

The poisons used in flypaper can potentially be toxic to humans and animals. Historically, metallic arsenic (a well-known toxin to humans) was used in flypaper. Arsenic extracted by soaking flypaper in water has been used by several convicted murderers, among them Frederick Seddon and Florence Maybrick. Many modern brands of flypaper contain no poison but only an adhesive that is not designed to be especially toxic, such as rosin.

Flypaper is as effective as many other methods involving insecticides or bug zappers. However, a twisted strip of flypaper hanging from the ceiling is considered by many to be aesthetically less acceptable than some other methods, and so flypaper is not as commonly used as it once was. Some formulas for flypaper also have a slight but potentially disagreeable odor. Handling and disposing of flypaper can be awkward because it is so sticky (vegetable oil can be used to remove the adhesive). Flypaper loses its effectiveness over time when it dries up and should be replaced regularly. Consideration should also be given to positioning as it may be less effective in certain areas of a room.>>
Art Neuendorffer

BDanielMayfield
Don't bring me down
Posts: 2524
Joined: Thu Aug 02, 2012 11:24 am
AKA: Bruce
Location: East Idaho

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by BDanielMayfield » Thu Jan 31, 2013 5:32 am

Looks like a spaceship had a really bad oil leak! :D
Just as zero is not equal to infinity, everything coming from nothing is illogical.

User avatar
Ann
4725 Å
Posts: 13838
Joined: Sat May 29, 2010 5:33 am

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Ann » Thu Jan 31, 2013 5:41 am

Aah, the Dark Doodad in Musca the Fly, with blue Alpha Muscae (at least I think it is Alpha, but I don't have my software here so I can check) and yellowish globular NGC 4372! :D What a nice picture!

Note the generations of stars and possible star formation that we are looking at here. If NGC 4372 is a typical globular, then it is likely 10-12 billion years old. B-type Alpha Muscae may be a few million or at most a few tens of million years old, and the Dark Doodad, who knows, may give birth to one or more baby stars in the future.

It's interesting that the Dark Doodad is so elongated. But then, molecular clouds in the Milky Way, the sites of future star formation, often are.

Ann
Color Commentator

ta152h0
Schooled
Posts: 1399
Joined: Mon Aug 29, 2005 12:46 am
Location: Auburn, Washington, USA

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by ta152h0 » Thu Jan 31, 2013 5:59 am

hmmmmmm wonder if this is the carpet mr Solomon got a ride on ???? just musing
Wolf Kotenberg

User avatar
alter-ego
Serendipitous Sleuthhound
Posts: 1123
Joined: Mon Apr 21, 2008 4:51 am
Location: Redmond, WA

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by alter-ego » Thu Jan 31, 2013 6:21 am

Ann wrote:Aah, the Dark Doodad in Musca the Fly, with blue Alpha Muscae (at least I think it is Alpha, but I don't have my software here so I can check) and yellowish globular NGC 4372! :D What a nice picture!
Hi Anne. It's ɣ Mus
A pessimist is nothing more than an experienced optimist

User avatar
Ann
4725 Å
Posts: 13838
Joined: Sat May 29, 2010 5:33 am

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Ann » Thu Jan 31, 2013 7:12 am

So it's Gamma Muscae! Thanks, alter-ego! :D

Ann
Color Commentator

FLPhotoCatcher
Science Officer
Posts: 247
Joined: Wed Jul 18, 2012 6:51 am

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by FLPhotoCatcher » Thu Jan 31, 2013 7:38 am

Does anyone notice a line of stars parallel to the bottom of the photo? It runs through the bright star there. Am I just seeing things? If it's real, what could have caused it?

Boomer12k
:---[===] *
Posts: 2691
Joined: Sun Apr 22, 2007 12:07 am

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Boomer12k » Thu Jan 31, 2013 9:00 am

Not a Doodad....To me, A Martial Arts Instructor, it looks like a Fantasy Sword you could buy from BudK.com

Nice Picture!!!

:---[===] *

K1NS

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by K1NS » Thu Jan 31, 2013 12:44 pm

You say every one of those tiny dots has planets orbiting around it ? . . . Oh !

User avatar
Chris Peterson
Abominable Snowman
Posts: 18596
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA
Contact:

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Chris Peterson » Thu Jan 31, 2013 3:40 pm

FLPhotoCatcher wrote:Does anyone notice a line of stars parallel to the bottom of the photo? It runs through the bright star there. Am I just seeing things? If it's real, what could have caused it?
I'm not sure what you're seeing (there are lines of stars everywhere), but I'm pretty confident in suggesting that what caused it is your brain. Because that's what our brains do... find patterns.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com

Boomer12k
:---[===] *
Posts: 2691
Joined: Sun Apr 22, 2007 12:07 am

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Boomer12k » Thu Jan 31, 2013 7:54 pm

Chris Peterson wrote:
FLPhotoCatcher wrote:Does anyone notice a line of stars parallel to the bottom of the photo? It runs through the bright star there. Am I just seeing things? If it's real, what could have caused it?
I'm not sure what you're seeing (there are lines of stars everywhere), but I'm pretty confident in suggesting that what caused it is your brain. Because that's what our brains do... find patterns.

Chris, I see what he means...there APPEARS to be two parallel lines of stars, it does look weird, like it is some type of pattern. And it continues to the right, though and past the blue star at the bottom left in the photo. BUT, I think you are correct it is just what our brains latch on to. Like my brain seeing a SWORD, and not just a funny DOODAD of Dust.
FLP....we have a tendency to "connect the dots"...that is why we have Constellations. It does look strange, but they are all through out the photo, lines of stars, above and below the center, as well as other places. I do see it too. But I don't think it is a photo artifact or anything. I also see a man lying on his back looking up....at the stars perhaps??? It is not STARS, but it is the dark spaces in between stars. From the top right of the Doodad, to the left over to the the blue star. We have such fascinating IMAGINATIONS, don't we????

:---[===] *

User avatar
Ron-Astro Pharmacist
Resistored Fizzacist
Posts: 889
Joined: Thu Jan 03, 2013 10:34 pm
AKA: Fred
Location: Idaho USA

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Ron-Astro Pharmacist » Thu Jan 31, 2013 9:03 pm

[quote="BDanielMayfield"][/quote]

Humming Dionne Warwick's tune and altering the lyrics a bit

Do you know the way to San “Zetox”? From a couple of days ago in Neufer’s very informative blast from my childhood. It’s probably the “Great Gazo” heading home after banishment. Let’s see?

If we take into account the stone age to the 60’s, measured the length of his exhaust plume, throw in a few more variables - we might be able to get an idea on how to find San “Zetox”
Make Mars not Wars

User avatar
Ron-Astro Pharmacist
Resistored Fizzacist
Posts: 889
Joined: Thu Jan 03, 2013 10:34 pm
AKA: Fred
Location: Idaho USA

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Ron-Astro Pharmacist » Thu Jan 31, 2013 9:04 pm

I'll get the BBCode down soon.
Make Mars not Wars

moonstruck
Science Officer
Posts: 164
Joined: Fri Jun 18, 2010 2:27 pm

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by moonstruck » Thu Jan 31, 2013 10:39 pm

Aww...Th Dark Doodad...a name I can finally understand :ssmile:

User avatar
Anthony Barreiro
Turtles all the way down
Posts: 793
Joined: Wed May 11, 2011 7:09 pm
Location: San Francisco, California, Turtle Island

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Anthony Barreiro » Thu Jan 31, 2013 10:42 pm

Chris Peterson wrote:
FLPhotoCatcher wrote:Does anyone notice a line of stars parallel to the bottom of the photo? It runs through the bright star there. Am I just seeing things? If it's real, what could have caused it?
I'm not sure what you're seeing (there are lines of stars everywhere), but I'm pretty confident in suggesting that what caused it is your brain. Because that's what our brains do... find patterns.
Here's an interesting article from CNN about how our brains respond to common artistic illusions.
Herschel Browning Chipp wrote:Pablo Picasso once said, "We all know that Art is not truth. Art is a lie that makes us realize truth, at least the truth that is given us to understand. The artist must know the manner whereby to convince others of the truthfulness of his lies."
May all beings be happy, peaceful, and free.

FLPhotoCatcher
Science Officer
Posts: 247
Joined: Wed Jul 18, 2012 6:51 am

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by FLPhotoCatcher » Fri Feb 01, 2013 8:46 am

Boomer12k wrote:
Chris Peterson wrote:
FLPhotoCatcher wrote:Does anyone notice a line of stars parallel to the bottom of the photo? It runs through the bright star there. Am I just seeing things? If it's real, what could have caused it?
I'm not sure what you're seeing (there are lines of stars everywhere), but I'm pretty confident in suggesting that what caused it is your brain. Because that's what our brains do... find patterns.

Chris, I see what he means...there APPEARS to be two parallel lines of stars, it does look weird, like it is some type of pattern. And it continues to the right, though and past the blue star at the bottom left in the photo. BUT, I think you are correct it is just what our brains latch on to. Like my brain seeing a SWORD, and not just a funny DOODAD of Dust.
FLP....we have a tendency to "connect the dots"...that is why we have Constellations. It does look strange, but they are all through out the photo, lines of stars, above and below the center, as well as other places. I do see it too. But I don't think it is a photo artifact or anything. I also see a man lying on his back looking up....at the stars perhaps??? It is not STARS, but it is the dark spaces in between stars. From the top right of the Doodad, to the left over to the the blue star. We have such fascinating IMAGINATIONS, don't we????

:---[===] *
Indeed, it is some type of pattern. There is a roughly straight line of stars that look closer together from our perspective. It is real. What caused it?

User avatar
DavidLeodis
Perceptatron
Posts: 1169
Joined: Mon May 01, 2006 1:00 pm

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by DavidLeodis » Fri Feb 01, 2013 12:13 pm

I was unsure of what a Doodad is though the word did seem familiar as if it had been used before in an APOD and on searching for Doodad I found the Dark Doodad Nebula was the subject of the APOD of December 8 2008. In the explanation to that it stated "Doodad is slang for a thingy or a whatchamacallit", so now I know! :)

For some reason I'm now mentally singing the "Zip a dee doo dah" song. :)

User avatar
owlice
Guardian of the Codes
Posts: 8406
Joined: Wed Aug 04, 2004 4:18 pm
Location: Washington, DC

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by owlice » Fri Feb 01, 2013 12:51 pm

My, oh my, what a wonderful day.
A closed mouth gathers no foot.

User avatar
DavidLeodis
Perceptatron
Posts: 1169
Joined: Mon May 01, 2006 1:00 pm

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by DavidLeodis » Fri Feb 01, 2013 12:55 pm

owlice wrote:My, oh my, what a wonderful day.
:)

User avatar
rstevenson
Quis custodiet ipsos custodes?
Posts: 2705
Joined: Fri Mar 28, 2008 1:24 pm
Location: Halifax, NS, Canada

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by rstevenson » Fri Feb 01, 2013 2:24 pm

FLPhotoCatcher wrote:... Indeed, it is some type of pattern. There is a roughly straight line of stars that look closer together from our perspective. It is real. What caused it?
line.jpg
It is a pattern. It is not real, in the sense of being an actual line of stars in space. It is "caused" by our brain, as has been explained. Note that this "line" will certainly include stars which are at widely varying distances from us, so that if you moved far enough away from the Earth the line would disappear. But you'd likely see one or more lines elsewhere. Indeed you can see coincidental lines of stars in any picture showing a large number of stars.

Rob

User avatar
owlice
Guardian of the Codes
Posts: 8406
Joined: Wed Aug 04, 2004 4:18 pm
Location: Washington, DC

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by owlice » Sat Feb 02, 2013 1:56 am

Plenty of sunshine coming my way.
A closed mouth gathers no foot.

User avatar
Beyond
500 Gigaderps
Posts: 6889
Joined: Tue Aug 04, 2009 11:09 am
Location: BEYONDER LAND

Re: APOD: NGC 4372 and the Dark Doodad (2013 Jan 31)

Post by Beyond » Sat Feb 02, 2013 3:38 am

zip-a-dee-doo-dah, zip-a-dee-a.
To find the Truth, you must go Beyond.

Post Reply