Starship Asterisk*

This is the Chamaeleon III [url=https://www.aspbooks.org/a/volumes/article_details/?paper_id=40194]complex[/url].

One of the best pictures of dust I've seen in a long time.

Medievals dreamed of transforming metals into gold, while the cosmos turns dark dusty nebulas into bright stars. Now [i]that[/i] is alchemy! (moreover some of these stars will make gold for real!)
Beautiful image…

[quote=woodlands28@yahoo.com post_id=340373 time=1721647890]
Sublime 36 hour exposed photo of the Chamaeleon Dark Nebula. I wonder if Chang Lee would kindly share what telescope he used to get this beautiful pic?
[/quote]

Always follow the link to the source image. It often contains much more information about the technical details than we see in the APOD caption.
_
[attachment=0]Screenshot 2024-07-22 063735.jpg[/attachment]

Sublime 36 hour exposed photo of the Chamaeleon Dark Nebula. I wonder if Chang Lee would kindly share what telescope he used to get this beautiful pic?

Well, nice APOD.


[img3="Chameleon Dark Nebulas. Credit: Chang Lee"]https://apod.nasa.gov/apod/image/2407/VeeChamaeleon_Lee_960_annotated.jpg[/img3]


This is where we are:


[float=left][attachment=0]Chameleon and Musca Till Credner and Sven Kohle.png[/attachment][c][size=85][color=#0040FF]Chameleon and Musca. Credit: Till Credner and Sven Kohle[/color][/size][/c][/float]
[clear][/clear]


Here is another picture to sort of help you see where we are, even though Beta Chameleontis and the dark nebulas of today's APOD are not in the picture:


[img3="The prominent dark cloud at top is the Coalsack nebula. The blue star next to it is Acrux. The elongated dark line at lower right is the Dark Doodad. Constellation Chameleon is due south of constellation Musca, home of the Dark Doodad. Image credit: Probably Alan Dyer."]https://i.pinimg.com/736x/b0/27/54/b02754178000a03580c8ed8dce2c8881.jpg[/img3]


I don't have that much more to say about today's APOD, except that the dust appears windblown in a way that has nothing to do with Beta Chameleontis. I wonder what is causing the dust to be windblown in that way?

Ann

[url=https://apod.nasa.gov/apod/ap240722.html] [img]https://apod.nasa.gov/apod/calendar/S_240722.jpg[/img] [size=150]Chamaeleon Dark Nebulas[/size][/url]

[b] Explanation: [/b] Sometimes the dark dust of interstellar space has an angular elegance. Such is the case toward the far-south [url=https://en.wikipedia.org/wiki/Chamaeleon]constellation of Chamaeleon[/url]. Normally [url=https://apod.nasa.gov/apod/ap180628.html]too faint to see[/url], dark dust is best known for blocking visible light from stars and galaxies behind it. In [url=https://www.astrobin.com/rlr0m9/]this 36.6-hour exposure[/url], however, [url=https://www.flickr.com/photos/hiroc/47807534932]the dust[/url] is seen mostly in light of its own, with its strong red and near-[url=https://science.nasa.gov/ems/07_infraredwaves]infrared[/url] colors creating a brown hue. Contrastingly blue, the bright star [url=https://en.wikipedia.org/wiki/Beta_Chamaeleontis]Beta Chamaeleontis[/url] is visible on the upper right, with the dust that surrounds it preferentially reflecting blue light from its primarily blue-white color. All of the pictured stars and dust occur in our own [url=https://science.nasa.gov/resource/the-milky-way-galaxy/]Milky Way Galaxy[/url] with one [url=https://static.onecms.io/wp-content/uploads/sites/20/2021/09/28/startled-cat-5.jpg]notable exception[/url]: the white spot just [url=http://www.werbeagentur.org/oldwexi/gallery.html]below Beta Chamaeleontis[/url] is the galaxy [url=https://theskylive.com/sky/deepsky/ic3104-object]IC 3104[/url] which lies far in the distance. [url=https://astronomy.swin.edu.au/cosmos/d/Dust+Grain]Interstellar dust[/url] is mostly created in the cool atmospheres of [url=https://en.wikipedia.org/wiki/Red_giant]giant stars[/url] and dispersed into space by stellar light, [url=https://apod.nasa.gov/apod/ap000318.html]stellar winds[/url], and [url=https://en.wikipedia.org/wiki/List_of_stellar_explosion_types]stellar explosions[/url] such as [url=https://www.science.org/content/article/interstellar-dust-may-come-supernovae-after-all]supernovas[/url].


[table][tr][td=left][url=https://asterisk.apod.com/discuss_apod.php?date=240721][b]<< Previous APOD[/b][/url][/td] [td=center][url=https://asterisk.apod.com/view_retro.php?date=0722][b]This Day in APOD[/b][/url][/td] [td=right][url=https://asterisk.apod.com/discuss_apod.php?date=240723][b]Next APOD >>[/b][/url][/td][/tr][/table]