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APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Mon Aug 15, 2022 4:05 am
by APOD Robot
The Cygnus Wall of Star Formation
Explanation: The
North America nebula on the sky can do what the
North America continent on Earth cannot -- form stars. Specifically, in analogy to the Earth-confined continent, the bright part that appears as
Central America and
Mexico is actually a hot bed of gas, dust, and newly formed stars known as the
Cygnus Wall. The
featured image shows the star forming wall
lit and eroded by
bright young stars, and
partly hidden by the dark
dust they have created. The part of the
North America nebula (NGC 7000) shown spans about 15
light years and lies about 1,500 light years away toward the
constellation of the Swan (
Cygnus).
Re: APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Mon Aug 15, 2022 2:37 pm
by orin stepanek
?? Making dust to hide their birth? privacy
Beautifully done!
I'm hiding!
Re: APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Mon Aug 15, 2022 7:43 pm
by De58te
Did the description say the North American continent can't form stars? I disagree. If we replace the word form for create, isn't Hollywood on the North American continent, and every year Hollywood creates 4 or 5 new stars. ( To replace old stars that retire such as Robert Redford or Meg Ryan.)
Re: APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Mon Aug 15, 2022 7:57 pm
by johnnydeep
De58te wrote: ↑Mon Aug 15, 2022 7:43 pm
Did the description say the North American continent can't form stars? I disagree. If we replace the word form for create, isn't Hollywood on the North American continent, and every year Hollywood creates 4 or 5 new stars. ( To replace old stars that retire such as Robert Redford or Meg Ryan.)
And some of those newly minted stars are even "hot and young"
Re: APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Mon Aug 15, 2022 8:01 pm
by johnnydeep
Alright, one thing caught my eye here. Is the particularly well lit ruddy dust patch in the middle of the "Gulf" anything particularly interesting?
Re: APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Mon Aug 15, 2022 10:07 pm
by starsurfer
johnnydeep wrote: ↑Mon Aug 15, 2022 8:01 pm
Alright, one thing caught my eye here. Is the particularly well lit ruddy dust patch in the middle of the "Gulf" anything particularly interesting?
red dust patch in the middle of the cygnus gulf.JPG
HBC 722!!!!! I remember being obsessed with this back in 2010. You can see a closer view of it by Antonio Sánchez
here.
Re: APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Tue Aug 16, 2022 1:22 am
by FLPhotoCatcher
starsurfer wrote: ↑Mon Aug 15, 2022 10:07 pm
johnnydeep wrote: ↑Mon Aug 15, 2022 8:01 pm
Alright, one thing caught my eye here. Is the particularly well lit ruddy dust patch in the middle of the "Gulf" anything particularly interesting?
red dust patch in the middle of the cygnus gulf.JPG
HBC 722!!!!! I remember being obsessed with this back in 2010. You can see a closer view of it by Antonio Sánchez
here.
Someone needs to get the JWST on it, STAT!
Does anyone know if there is a Hubble view of it?
Re: APOD: The Cygnus Wall of Star Formation (2022 Aug 15)
Posted: Tue Aug 16, 2022 11:57 am
by johnnydeep
starsurfer wrote: ↑Mon Aug 15, 2022 10:07 pm
johnnydeep wrote: ↑Mon Aug 15, 2022 8:01 pm
Alright, one thing caught my eye here. Is the particularly well lit ruddy dust patch in the middle of the "Gulf" anything particularly interesting?
red dust patch in the middle of the cygnus gulf.JPG
HBC 722!!!!! I remember being obsessed with this back in 2010. You can see a closer view of it by Antonio Sánchez
here.
Cool. 2010 was when it had an outburst of some kind! Here's a more digestible (for me) to read article about it:
https://spaceref.com/press-release/cascading-material-pours-onto-a-young-star/ wrote:Astronomer Joel Green of The University of Texas at Austin has been following a rare massive flare from a nascent star similar to the early Sun using the European Space Agency’s infrared Herschel Space Observatory and a cadre of other telescopes. Green has found that this protostar, called HBC 722, is situated in a tangled web of gas and protostars tightly packed into a small area. Green’s research is published in today’s issue of The Astrophysical Journal Letters.
HBC 722 lies 2,000 light-years away in the “Gulf of Mexico” region of the North America Nebula (NGC 7000), in the constellation Cygnus, the swan. In early 2009, it appeared to be an ordinary young star in a cloud of similarly young stars. Like most stars less than a few million years old, HBC 722 is surrounded by a disk of gas and dust, perhaps beginning to form a planetary system.
It began to brighten, slowly at first, increasing dramatically during the summer of 2010. By late September 2010, it was 20 times brighter than it had been the year before. Since that time, it has slowly begun to settle back down.