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The Bubble Nebula

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#1 AstroGabe

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Posted 12 December 2017 - 07:04 PM

Here’s my latest image of the Bubble Nebula in the Hubble Palette.  This is such a cool area of the sky, and I never get tired of imaging it.  Eventually, I’d like to do some more higher resolution work of it, but this data from October with my TMB130 will have to do for now. 

 

As always, C&C are welcome and encouraged!  Thanks for looking!

 

Description:
The Bubble Nebula is an emission nebula in the constellation Cassiopeia and lies some 11000 light years away. The bubble is 10 light years in diameter and is formed by the strong stellar wind of a large hot star at the 11 o'clock position in the bubble. This wind is causing the bubble to expand at roughly 6 million miles per hour. This star is 2 million years old and will likely go supernova within 10-20 million years. Surrounding the bubble are expansive molecular clouds that are also excited by the hot central star.

 

Details:
Scope: TMB130SS @ f/5.6
Reducer: ATREDT30 0.8x
Camera: QSI690-wsg8
Guide Camera: Starlight Xpress Ultrastar
Mount: Mach1 GTO
SII: 25x15min
Ha: 18x15min
OIII: 24x15min
Software: SGP, PHD2, APCC, Pixinsight
16.8 hrs total exposure

 

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#2 HarryRik9

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Posted 12 December 2017 - 07:08 PM

Bubble Nebula in the Hubble pallet, is a name that makes absolutely no sense and is completely unknown to me. Please use standard nomenclature.


Edited by HarryRik9, 12 December 2017 - 07:09 PM.


#3 psandelle

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Posted 12 December 2017 - 07:37 PM

Bubble Nebula in the Hubble pallet, is a name that makes absolutely no sense and is completely unknown to me. Please use standard nomenclature.

The Bubble Nebula: an emission nebula located in the northern constellation Cassiopeia. The nebula lies at a distance of 7,100 to 11,000 light years from Earth. It is also known as Caldwell 11 or Sharpless 162. Its designation in the New General Catalogue is NGC 7635. It was nicknamed the Bubble Nebula because of its shape, which was created by a strong stellar wind from a young, massive, hot Wolf-Rayet star that shed its material to form the nebula. The star has the designations SAO 20575 and BD+60 2522.

 

Hubble pallet: the bed, or mattress of straw, that Edwin Powell Hubble (November 20, 1889 – September 28, 1953), an American astronomer, slept on.

 

Nice image!

 

Paul


Edited by psandelle, 12 December 2017 - 07:38 PM.

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#4 BlueGrass

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Posted 12 December 2017 - 11:45 PM

Gabe,

 Great looking capture, and with NB it really helped the definition. The Bubble is not easily imaged for the impatient. Really love the blue bubble ... grin.gif



#5 GeneralT001

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Posted 13 December 2017 - 12:47 AM

Great capture. The Bubble has always looked so surreal to me.



#6 AstroGabe

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Posted 13 December 2017 - 09:24 AM

Thanks guys for the nice comments.  

 

Bubble Nebula in the Hubble pallet, is a name that makes absolutely no sense and is completely unknown to me. Please use standard nomenclature.

The Hubble Palette is a specific assignment of narrowband filters to RGB.  In this case R, G, B = SII, Ha, OIII.  I believe it is standard to refer to this assignment as simply the "Hubble Palette".  Here's a link for more info on it and other assignments:

 

http://www.almadenob...or_Imagery.html

 

 

Hubble pallet: the bed, or mattress of straw, that Edwin Powell Hubble (November 20, 1889 – September 28, 1953), an American astronomer, slept on.

 

lol.gif

 

Gabe


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#7 Mert

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Posted 13 December 2017 - 03:37 PM

Very nice image, well done!!! :waytogo:



#8 rockstarbill

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Posted 13 December 2017 - 03:41 PM

Bubble Nebula in the Hubble pallet, is a name that makes absolutely no sense and is completely unknown to me. Please use standard nomenclature.

NGC7635. 

 

Much easier to just say "Bubble Nebula" 

 

https://www.nasa.gov...eature_864.html

 

Here is a link to a NASA image of it, that also uses the term. I do not see a problem with this. 


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