NGC 7538 Ha-OIII-RGB (sydney)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7538

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NGC 7538 Ha-OIII-RGB

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NGC 7538 Ha-OIII-RGB

NGC 7538 is an emission and reflection nebula near the Cassiopeia - Cepheus border. It is home to the largest known protostar. The Herschel Space Observatory has also identified 13 massive, dense clumps where colossal stars could form in the future, as well as a strange ring of stellar seeds which may be the edge of a bubble carved by previous stellar explosions. NGC 7538 is about 9000 light-years away from Earth.

This image is an Ha/OIII/RGB. Seeing was awful during the nights I was imaging and I discarded many full nights of severely bloated and trailed exposures. I was afraid that my AP900 mount was misbehaving as I had just uploaded a new PEMPro curve recorded during mediocre seeing. Eventually I obtained enough reasonable data for an image. As usual, it was the seeing messing with my focus and guiding, and not the mount, that was the problem. Always trust your dog and your AP mount!

I hope you enjoy!

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	5350861
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 7538 Ha-OIII-RGB

NGC 7538 Ha-OIII-RGB

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Image Index:

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NGC 7538 Ha-OIII-RGB

NGC 7538 Ha-OIII-RGB

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