Hubble's Bubble - NGC 7635 (Bogdan Borz)

Hubble's Bubble - NGC 7635

The Bubble Nebula is an emission nebula situated at 7100 - 11000 ly in Cassiopeia. It has a diameter of 10 ly and it is created by the stellar wind caused by the star SAO 20575 (BD+60 2522). (Wikipedia).

It is an image created using the N, Ha and O3 filters. The N filter is using a 658 nm wavelength vs 656 nm for Ha. I find it interesting that the N signal won't be available when using the 3nm Astrodon filters (the 7nm Zwo filters includes the N signal in Ha for example). Could it be worth using the Zwo filter instead of the Astrodon filter when imaging the Bubble nebula from backyard? Astrodon manufactures N2 filters too, but haven't seen yet an amateur image produced using the N2 filter.

Credit: NASA/ESA/Hubble

Processing: Bogdan Borz 2020

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	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Other
Unknown

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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Astrometry.net job	3520916
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