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APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 4:05 am
by APOD Robot
Star Forming Region S106
Explanation: Massive star IRS 4 is beginning to spread its wings. Born only about 100,000 years ago, material streaming out from this
newborn star has formed the nebula dubbed Sharpless 2-106 Nebula (S106),
featured here. A large disk of
dust and gas orbiting Infrared Source 4 (IRS 4), visible in brown near the image center, gives the nebula an
hourglass or
butterfly shape.
S106 gas near IRS 4 acts as an
emission nebula as it emits light after being
ionized, while
dust far from
IRS 4 reflects light from the central star and so acts as a
reflection nebula. Detailed inspection of a relevant
infrared image of S106 reveal hundreds of low-mass
brown dwarf stars lurking in
the nebula's gas. S106 spans about 2
light-years and lies about 2000 light-years away toward the
constellation of the Swan (
Cygnus).
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 5:13 am
by SpaceCadet
EPIC!
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 9:18 am
by RC Davison
You had the Random APOD Generator on a post a few days back and it’s such a great way to wander through the cosmos! I think you should add it as a standard button for the web page. Thanks for all you do!
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 10:22 am
by Ann
This nebula, Sharpless-2 106, is known as the Snow Angel nebula. The picture at right shows the better known version of this nebula.
Ann
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 10:54 am
by orin stepanek
Ann wrote: ↑Wed Mar 25, 2020 10:22 am
This nebula, Sharpless-2 106, is known as the Snow Angel nebula. The picture at right shows the better known version of this nebula.
Ann
Both are Beautiful images Ann!
![✨](//cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/2728.svg)
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 11:21 am
by heehaw
Panspermia? There don't seem to be any interstellar viruses, carrying diseases, or carrying seeds for planetary life. It is annoying that we have not (yet?) found even remnants of life on Mars; finding such would give us hints about how frequently life appears throughout the universe. The interstellar environment is just too toxic for life to be able to survive in space. Maybe.
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 11:49 am
by NCTom
Is there a particular reason a few of the stars have black dots at their centers? This is a beautiful region, both the APOD and Ann's addition.
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 1:15 pm
by sillyworm 2
I'm impressed by the Information about the calculated amount of brown dwarfs in the region.
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 2:11 pm
by GeoXXX
NCTom wrote: ↑Wed Mar 25, 2020 11:49 am
Is there a particular reason a few of the stars have black dots at their centers?
This is a symptom of an overload on the image sensor because the star was so bright due to a long exposure. Ironically the overexposed area flips to black.
Eric
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 2:24 pm
by Chris Peterson
GeoXXX wrote: ↑Wed Mar 25, 2020 2:11 pm
NCTom wrote: ↑Wed Mar 25, 2020 11:49 am
Is there a particular reason a few of the stars have black dots at their centers?
This is a symptom of an overload on the image sensor because the star was so bright due to a long exposure. Ironically the overexposed area flips to black.
Well, close. It's a
processing error that is common when dealing with saturated pixels. The pixel value in the raw data is at its max, not set to zero.
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 4:26 pm
by geckzilla
Chris Peterson wrote: ↑Wed Mar 25, 2020 2:24 pm
GeoXXX wrote: ↑Wed Mar 25, 2020 2:11 pm
NCTom wrote: ↑Wed Mar 25, 2020 11:49 am
Is there a particular reason a few of the stars have black dots at their centers?
This is a symptom of an overload on the image sensor because the star was so bright due to a long exposure. Ironically the overexposed area flips to black.
Well, close. It's a
processing error that is common when dealing with saturated pixels. The pixel value in the raw data is at its max, not set to zero.
I was just going to say that I have never encountered "black holes" in saturated stars for HST data.
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 4:36 pm
by Astronymus
Looks like a giant torus. I know it's not.
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Wed Mar 25, 2020 11:02 pm
by ta152h0
Isn't there a contact binary nearby? pass me an ice cold one from Colorado; put it into your CD drive & mail it to me. ha! ha! ha!
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Thu Mar 26, 2020 12:31 am
by Sigmund F.
It's just me? or today's image could seem erótica.
![Embarassed :oops:](./images/smilies/icon_redface.gif)
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Thu Mar 26, 2020 1:57 am
by neufer
Sigmund F. wrote: ↑Thu Mar 26, 2020 12:31 am
It's just me? or today's image could seem erótica.
Re: APOD: Star Forming Region S106 (2020 Mar 25)
Posted: Fri Mar 27, 2020 10:50 pm
by TheOtherBruce
Looks like it's being sucked up through a very big straw. Can anyone else hear a deep "schlurrrrrrrp!!!" noise...?
![Wink :wink:](./images/smilies/icon_wink.gif)