APOD: The Rosette Nebula (2017 Feb 14)

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APOD Robot
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APOD: The Rosette Nebula (2017 Feb 14)

Post by APOD Robot » Tue Feb 14, 2017 5:07 am

Image The Rosette Nebula

Explanation: Would the Rosette Nebula by any other name look as sweet? The bland New General Catalog designation of NGC 2237 doesn't appear to diminish the appearance of this flowery emission nebula. Inside the nebula lies an open cluster of bright young stars designated NGC 2244. These stars formed about four million years ago from the nebular material and their stellar winds are clearing a hole in the nebula's center, insulated by a layer of dust and hot gas. Ultraviolet light from the hot cluster stars causes the surrounding nebula to glow. The Rosette Nebula spans about 100 light-years across, lies about 5000 light-years away, and can be seen with a small telescope towards the constellation of the Unicorn (Monoceros).

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Ann
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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by Ann » Tue Feb 14, 2017 5:40 am

Very nice picture! :D

Ann
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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by Boomer12k » Tue Feb 14, 2017 9:16 am

The center looks a bit like Pacman, gobbling up dots....

Great image...

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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by Indigo_Sunrise » Tue Feb 14, 2017 11:56 am

Very nice image - Happy Valentine's Day, APODees! :)


(or is it: APODers?)
Forget the box, just get outside.

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MarkBour
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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by MarkBour » Tue Feb 14, 2017 5:30 pm

The stars of NGC 2244 look to me like statins flowing through an artery, clearing it out.
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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by ta152h0 » Tue Feb 14, 2017 8:43 pm

if it wasn't for the personnel at APOD, looking at the sky would still be looking at dots of light.
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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by saturno2 » Tue Feb 14, 2017 9:56 pm

Beautiful image

Guest

Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by Guest » Tue Feb 14, 2017 10:54 pm

This nebula is owned by my wife. I gave it to her as a fun little Valentines's Day present many years ago.

She thought it was nice. And rather sweet.

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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by ta152h0 » Tue Feb 14, 2017 11:45 pm

In about an hour the wife is getting one of those dipping drinking bird with the epanding liquid. Perpetual motion machine but not really, heat is required and something has to heat and cool the system.I learned something in school and it is paying off.
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Ann
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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by Ann » Wed Feb 15, 2017 2:36 am

Guest and ta152h0, thanks for telling me what you gave your wives! :D

And ta152h0, thanks for explaining the drinking bird thing to me.

I hadn't heard of drinking birds until this Simpsons episode explained to me how it worked - and now you just explained how it will stop working! :D
Click to play embedded YouTube video.
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neufer
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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by neufer » Wed Feb 15, 2017 2:50 am

.
Click to play embedded YouTube video.
ta152h0 wrote:
In about an hour the wife is one of those dipping drinking bird with the expanding liquid.
. How romantic :!: (You too, Ann.)
https://en.wikipedia.org/wiki/Dichloromethane wrote:
<<Dichloromethane (DCM, or methylene chloride) is an organic compound with the formula CH2Cl2. This colorless, volatile liquid with a moderately sweet aroma is widely used as a solvent. The chemical compound's low boiling point (39.6 °C) allows the chemical to function in a heat engine that can extract mechanical energy from small temperature differences. An example of a DCM heat engine is the drinking bird. The toy works at room temperature.>>
Art Neuendorffer

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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by LirrelJohn » Wed Feb 15, 2017 8:39 pm

neufer wrote:
<<... An example of a DCM heat engine is the drinking bird. The toy works at room temperature.>>


Hmm, probably wouldn't work in my room. It's freezing in here.
Even my radiometer has stopped rotating, though that might have something to do with it being dark here and
old Sol being blocked by a rather large planet.

I'm the "Guest" with the wife who owns the Rosette. In addition to that, she also owns a comet and a rather large but
distant galaxy ( ... due to light-speed lag this is seen as it was a long time ago and from far away ...).

I was thinking of giving her something bigger than a galaxy for one Valentine's Day but I was rather at a loss as to how I would
wrap a Universe.
The notion presents logical imponderables.

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Re: APOD: The Rosette Nebula (2017 Feb 14)

Post by carlos_uriarte » Thu Feb 16, 2017 10:12 am

OHHH...it's beautiful photo, but I have another rosette and any notification...why not? hahaha
Congratulations