The Elephant Trunk in the “visible” spectrum (Giorgio)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

The Elephant Trunk in the “visible” spectrum, Giorgio

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The Elephant Trunk in the “visible” spectrum

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The Elephant Trunk in the “visible” spectrum

The Elephant's Trunk Nebula is a concentration of dark, dense gas and dust within the larger IC 1396 ionized gas region in Cepheus about 2,400 light years away. The very bright, massive star HD 206267 (not visible in this frame) ionises the whole IC 1396 gas region and illuminates one side of the dense cloud, creating the bright rim. Stars are still forming in the nebula – including the two visible in the small, circular cavity within the head of the globule; this cavity was probably created by their stellar wind. Other stars nearby appear to dimly shine through the gas which surrounds them.

This was one of the first images I took after modifying my Canon 550D. The only filter in place was the stock IR/UV block filter left on the sensor. “Visible” in quotes of course – given that the DSLR modification amplifies a lot the sensitivity to the deep red at the H-alpha wavelength (656 nm) compared to the human eye.

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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
Deep sky
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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	3986793
PixInsight job	n/a
PixInsight queue size	n/a
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The Elephant Trunk in the “visible” spectrum

The Elephant Trunk in the “visible” spectrum

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The Elephant Trunk in the “visible” spectrum

The Elephant Trunk in the “visible” spectrum

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