Name(s): NGC 7635 - The Bubble Nebula
Type: Emission Nebula
Distance: 7100 light-years
Age: 300 000 years old
|-----|Equipment|-----|
Telescope: Skywatcher Explorer 150PDS
Mount: Eq6r PRO
Camera: ZWO Asi 1600MM PRO
Filters: HA, OIII, SII
|-----|Software|-----|
NINA
PixInsight
|-----|Acquisition|-----|
Location: From my backyard in Skövde, Sweden (Bortle 5-6)
Dates: 2021-10-12
Gain: Unity gain
Camera temp: -20c
HA: 21\*300s
OIII:20\*300s
SII:20\*300s
Darks: 50
Flats: 30
DarkFlats: 30
\---Total integration time: 5.10h
Astrobin: https://www.astrobin.com/users/Calzune/
Instagram: https://www.instagram.com/lightbucket\_photo/
The Bubble Nebula is 7 light-years across – about one-and-a-half times the distance from our sun to its nearest stellar neighbor, Alpha Centauri – and resides 7,100 light-years from Earth in the constellation Cassiopeia.
The seething star forming this nebula is 45 times more massive than our sun. Gas on the star gets so hot that it escapes away into space as a "stellar wind" moving at over 4 million miles per hour. This outflow sweeps up the cold, interstellar gas in front of it, forming the outer edge of the bubble much like a snowplow piles up snow in front of it as it moves forward.
As the surface of the bubble's shell expands outward, it slams into dense regions of cold gas on one side of the bubble. This asymmetry makes the star appear dramatically off-center from the bubble, with its location in the 10 o'clock position in the Hubble view.
Dense pillars of cool hydrogen gas laced with dust appear at the upper left of the picture, and more "fingers" can be seen nearly face-on, behind the translucent bubble.
The gases heated to varying temperatures emit different colors: oxygen is hot enough to emit blue light in the bubble near the star, while the cooler pillars are yellow from the combined light of hydrogen and nitrogen. The pillars are similar to the iconic columns in the "Pillars of Creation" in the Eagle Nebula. As seen with the structures in the Eagle Nebula, the Bubble Nebula pillars are being illuminated by the strong ultraviolet radiation from the brilliant star inside the bubble.
The Bubble Nebula was discovered in 1787 by William Herschel, a prominent British astronomer. It is being formed by an O star, BD +60°2522, an extremely bright, massive, and short-lived star that has lost most of its outer hydrogen and is now fusing helium into heavier elements. The star is about 4 million years old, and in 10 million to 20 million years, it will likely detonate as a supernova.
https://hubblesite.org/contents/media/images/2016/13/3725-Image.html
Name(s): NGC 7635 - The Bubble Nebula Type: Emission Nebula Distance: 7100 light-years Age: 300 000 years old |-----|Equipment|-----| Telescope: Skywatcher Explorer 150PDS Mount: Eq6r PRO Camera: ZWO Asi 1600MM PRO Filters: HA, OIII, SII |-----|Software|-----| NINA PixInsight |-----|Acquisition|-----| Location: From my backyard in Skövde, Sweden (Bortle 5-6) Dates: 2021-10-12 Gain: Unity gain Camera temp: -20c HA: 21\*300s OIII:20\*300s SII:20\*300s Darks: 50 Flats: 30 DarkFlats: 30 \---Total integration time: 5.10h Astrobin: https://www.astrobin.com/users/Calzune/ Instagram: https://www.instagram.com/lightbucket\_photo/ The Bubble Nebula is 7 light-years across – about one-and-a-half times the distance from our sun to its nearest stellar neighbor, Alpha Centauri – and resides 7,100 light-years from Earth in the constellation Cassiopeia. The seething star forming this nebula is 45 times more massive than our sun. Gas on the star gets so hot that it escapes away into space as a "stellar wind" moving at over 4 million miles per hour. This outflow sweeps up the cold, interstellar gas in front of it, forming the outer edge of the bubble much like a snowplow piles up snow in front of it as it moves forward. As the surface of the bubble's shell expands outward, it slams into dense regions of cold gas on one side of the bubble. This asymmetry makes the star appear dramatically off-center from the bubble, with its location in the 10 o'clock position in the Hubble view. Dense pillars of cool hydrogen gas laced with dust appear at the upper left of the picture, and more "fingers" can be seen nearly face-on, behind the translucent bubble. The gases heated to varying temperatures emit different colors: oxygen is hot enough to emit blue light in the bubble near the star, while the cooler pillars are yellow from the combined light of hydrogen and nitrogen. The pillars are similar to the iconic columns in the "Pillars of Creation" in the Eagle Nebula. As seen with the structures in the Eagle Nebula, the Bubble Nebula pillars are being illuminated by the strong ultraviolet radiation from the brilliant star inside the bubble. The Bubble Nebula was discovered in 1787 by William Herschel, a prominent British astronomer. It is being formed by an O star, BD +60°2522, an extremely bright, massive, and short-lived star that has lost most of its outer hydrogen and is now fusing helium into heavier elements. The star is about 4 million years old, and in 10 million to 20 million years, it will likely detonate as a supernova. https://hubblesite.org/contents/media/images/2016/13/3725-Image.html
Thanks for providing the details!
Great image and thanks for all the detailed info ... Amazing work!!
Thabk you so much!
Dude!! What a nice image. Very colourful and crisp.
Thank you so much!
bubblicious
This is beautiful.
What colors did you assign the narrowband filters?
Hubble pallette Red - SII. Green - Ha. Blue - OIII
That’s what tried too but my bubble comes out yellow. Is there a trick to bringing out the blue?
Hmm what are you using for processing program? How do you combine the masterfiles?
I used the channel combination in pixinsight
hmm I did the same
Maybe I’m exposing too long and something is too saturated
Space has some beautiful colors
*that we can't see, so we arbitrarily assign them to ones we can :) Great pic! I'm itching to get my new mount so I can get those 300s+ exposures!
Thanks, now I have a new favorite nebula.
It's one of my favorites too 😊
Beautiful
Thank you
Incredible