APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

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APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by APOD Robot » Wed Jul 31, 2019 4:06 am

Image IC 1795: The Fishhead Nebula

Explanation: To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795.

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Ann
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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by Ann » Wed Jul 31, 2019 5:19 am

Interesting!

The Fishhead Nebula. Photo: Alan Pham.
The Heart and Soul Nebula, with the Fishhead Nebula at far right.
Photo: Jean Guimond.






















The Fishhead nebula is the brightest and "outsticking" part of the Heart Nebula, and the Fishhead appears to be where the current action is.

Just one brightish star can be seen in the middle of the Fishhead, and to me it looks as if it is responsible for blowing the large cavity of the head. But not much is known about this star.

Judging from today's APOD as well as from other pictures, the real ongoing star formation is happening in the fish's "mouth", and certainly also in the chaotic dark dust above the Fishhead, where things seem to be completely in turmoil. It looks to me as if some big things are going on in there!

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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by BDanielMayfield » Wed Jul 31, 2019 10:23 am

Continuing with the aquatic theme, there is a seahorse above the fish head.
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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by orin stepanek » Wed Jul 31, 2019 11:11 am

When we look at the nebulae; we let our imaginations take hold, and see all kind of things! Kind of like looking at clouds going by on a partial cloudy day! :lol2:
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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by Boomer12k » Wed Jul 31, 2019 11:57 am

To me....looks like a whole FISH.... behind the dust lane is the rest of the body...in Ann's heart nebula image, it looks like it is swimming through it....

Really bright, and detailed image...
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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by orin stepanek » Wed Jul 31, 2019 12:18 pm

Boomer12k wrote:
Wed Jul 31, 2019 11:57 am
To me....looks like a whole FISH.... behind the dust lane is the rest of the body...in Ann's heart nebula image, it looks like it is swimming through it....

Really bright, and detailed image...
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I think it looks like a whole fish also! The sea of space gives it a lot of room to swim in! :mrgreen:
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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by Chris Peterson » Wed Jul 31, 2019 12:41 pm

BDanielMayfield wrote:
Wed Jul 31, 2019 10:23 am
Continuing with the aquatic theme, there is a seahorse above the fish head.
When I look at this nebula, it reminds me of... clouds.
Chris

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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by BDanielMayfield » Wed Jul 31, 2019 1:54 pm

Chris Peterson wrote:
Wed Jul 31, 2019 12:41 pm
BDanielMayfield wrote:
Wed Jul 31, 2019 10:23 am
Continuing with the aquatic theme, there is a seahorse above the fish head.
When I look at this nebula, it reminds me of... clouds.
Knowing what a thing actually is can suppress (overactive, sleep-deprived?) imaginations. :wink:
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Post by neufer » Wed Jul 31, 2019 3:24 pm

https://en.wikipedia.org/wiki/Fish_head wrote:
<<In Sicilian witchcraft, it is customary to leave a fish head on the door step of one's enemy to ward off malicious intention. It is also performed by the eldest grandma when a mafia fishing family has been wronged by a business partner. The practice dates back to at least 1308, when Dante referenced it in his epic, the Divine Comedy. In a more serious feud, escalation of hostilities can be signaled by the appearance of a goat head or horse head.>>
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Re: APOD: IC 1795: The Fishhead Nebula (2019 Jul 31)

Post by The Dark Knight » Wed Jul 31, 2019 6:32 pm

Boomer12k wrote:
Wed Jul 31, 2019 11:57 am
To me....looks like a whole FISH.... behind the dust lane is the rest of the body...in Ann's heart nebula image, it looks like it is swimming through it....

Really bright, and detailed image...
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To me, It's Captain America's shoulders, with his neck and cowl above them in blue, from the back.