NGC 7635 - The Incredible Bubble Nebula (John Hayes)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble nebula · NGC 7635 · Sh2-162

Image of the day 08/05/2016

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NGC 7635 - The Incredible Bubble Nebula

Image of the day 08/05/2016

Powered byPixInsight

NGC 7635 - The Incredible Bubble Nebula

It takes light about 7,100 years to get from the Bubble nebula to earth and about 7 years just to traverse the diameter of the bubble itself. At the center of the bubble is a very hot O-type star that is 45 times more massive than the sun and several hundred thousand times more luminous. Stellar winds and radiation pressure from the star have created the egg shaped shell of gas that forms the bubble which lies in a region of dense molecular clouds and dust.

For my first narrow-band Hubble palette image I wanted to pick a colorful object and the Bubble nebula fit the bill. This data was taken with my automated roll out C14 Edge system over a period of about three nights. Focusing was done in real time (while the shutter is open) using FocusLock. Everything worked pretty much as planned with the telescope neatly parked at the end of each session the morning. (Other runs since then haven't been so clean, so I'm still working out bugs.)

I had to figure out the processing for this data but once I got the initial combination dialed in, the colors and detail jumped right out. Still, I took a lot of runs at the final image to dial in the color and contrast. I struggled a bit to decide how to handle the green channel. In the end, I chose to include a hint of green, which I think adds a bit of depth the result. As always, C&C is welcome. Enjoy...

- John

PS Version 'C' is the IOTD version but I decided to fiddle a bit more with the green channel and I like the latest rendition a bit more. So, here it is...

Original
B
C
Final
D

Cloudy Nights

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	1185347
PixInsight job	6R2F2N32W5O0EMCHYEJANN78FF1WI9P4
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h20m35s.500
RA (top/left)	23h18m49s.119
RA (top/right)	23h22m19s.898
RA (bottom/right)	23h22m23s.780
RA (bottom/left)	23h18m49s.566

Dec (center)	+61°09′48″.26
Dec (top/left)	+60°57′08″.82
Dec (top/right)	+60°56′49″.61
Dec (bottom/right)	+61°22′30″.35
Dec (bottom/left)	+61°22′43″.58

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Image of the day 08/05/2016

NGC 7635 - The Incredible Bubble Nebula

Image of the day 08/05/2016

NGC 7635 - The Incredible Bubble Nebula

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Image of the day 08/05/2016

NGC 7635 - The Incredible Bubble Nebula

Image of the day 08/05/2016

NGC 7635 - The Incredible Bubble Nebula

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