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#794088 - 11/24/12 11:28 PM Cetus the Sea Monster  
Joined: May 2010
Posts: 6,655
Mona - Astronomy Online content
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Mona - Astronomy  Online Content
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Tiger

Joined: May 2010
Posts: 6,655
United Kingdom
Whale or monster? Benign plankton-eating creature? No, a terrifying colossus, a hybrid with gaping jaws and the powerful scaly coils of a sea serpent. This is the constellation Cetus. The monster fell to the hero Perseus, but the stars and deep sky objects are impressive.

Cetus the Sea Monster

Last edited by Mona - Astronomy; 11/10/17 06:35 PM.

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#924316 - 11/10/17 06:47 PM Re: Cetus the Sea Monster [Re: Mona - Astronomy]  
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Mona - Astronomy Online content
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Tiger

Joined: May 2010
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The beautiful edge-on spiral galaxy NGC 1055 is 60 million light years away in the constellation Cetus. It's a bit larger than the Milky Way. The star-forming regions, which are pinkish, are found in the winding dust lanes along the disk of the galaxy. A boxy halo shows faint, narrow structures that could represent the mixed and spread-out debris from a satellite galaxy that this larger spiral disrupted.

Image Credit & Copyright: Processing - Robert Gendler, Roberto Colombari
Data - European Southern Observatory, Subaru Telescope (NAOJ), et al.


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#924342 - 11/12/17 06:25 AM Re: Cetus the Sea Monster [Re: Mona - Astronomy]  
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Mona - Astronomy Online content
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Mona - Astronomy  Online Content
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Tiger

Joined: May 2010
Posts: 6,655
United Kingdom
Messier 77 (NGC 1068) is a face-on spiral galaxy some 47 million light years away in the constellation Cetus. It's about 100 thousand light-years across.

It's classified as a Seyfert galaxy because it's an active galaxy with a compact, very bright core. The activity is due to a supermassive black hole.

Hubble data were used to make this image which shows "winding spiral arms traced by obscuring dust clouds and red-tinted star forming regions close in to the galaxy's luminous core."

Image Credit: NASA, ESA, André van der Hoeven


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#926460 - 02/19/18 11:12 PM Re: Cetus the Sea Monster [Re: Mona - Astronomy]  
Joined: May 2010
Posts: 6,655
Mona - Astronomy Online content
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Mona - Astronomy  Online Content
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Tiger

Joined: May 2010
Posts: 6,655
United Kingdom
I wandered lonely as a cloud? No, not a cloud, it's a dwarf galaxy called Wolf-Lundmark-Melotte (WLM) after the three astronomers that discovered it. It's a member of our local galaxy group, but at 3 million light years from the Milky Way, it's a remote member.WLM is about 8000 light years across and we can see star forming regions (pink), hot young stars (blue) and older cooler stars (yellow).

Image Credit: ESO, VST/Omegacam Local Group Survey


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