APOD: Sh2-239: Celestial Impasto (2011 Dec 08)

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APOD: Sh2-239: Celestial Impasto (2011 Dec 08)

Post by APOD Robot » Thu Dec 08, 2011 5:06 am

Image Sh2-239: Celestial Impasto

Explanation: The cosmic brush of star formation composed this alluring mix of dust and dark nebulae. Cataloged as Sh2-239 and LDN 1551, the region lies near the southern end of the Taurus molecular cloud complex some 450 light-years distant. Stretching for nearly 3 light-years, the canvas abounds with signs of embedded young stellar objects driving dynamic outflows into the surrounding medium. Included near the center of the frame, a compact, tell-tale red jet of shocked hydrogen gas is near the position of infrared source IRS5, known to be a system of protostars surrounded by dust disks. Just below it are the broader, brighter wings of HH 102, one of the region's many Herbig-Haro objects, nebulosities associated with newly born stars. Estimates indicate that the star forming LDN 1551 region contains a total amount of material equivalent to about 50 times the mass of the Sun.

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Re: APOD: Sh2-239: Celestial Impasto (2011 Dec 08)

Post by Ann » Thu Dec 08, 2011 5:21 am

This is a very beautiful image by master astrophotographer Adam Block. Congratulations, Adam!

I'll quote myself and repeat what I said in another forum here:
Adam Block, your image is great as usual. It brings out incredible turmoil in this star formation region. We can see veritable "tornadoes" of dust as well as ionized pink blotches, dots and intricate structures of ionized gas, as well as the large black "back" of the cloud that got concentrated enough to be able to trigger star formation in its "stomach".

Again, congratulations, Adam! You richly deserve this! :D

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Re: APOD: Sh2-239: Celestial Impasto (2011 Dec 08)

Post by orin stepanek » Thu Dec 08, 2011 3:50 pm

Neat picture; makes a great background! 8-)

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When you have eliminated the Impasto bull...

Post by neufer » Thu Dec 08, 2011 4:49 pm

http://en.wikipedia.org/wiki/Impasto wrote: <<In English, the borrowed Italian word impasto most commonly refers to a technique used in painting, where paint is laid on an area of the surface (or the entire canvas) very thickly, usually thickly enough that the brush or painting-knife strokes are visible. Paint can also be mixed right on the canvas. When dry, impasto provides texture, the paint appears to be coming out of the canvas.

The word "impasto" is Italian in origin; in that language it means "dough" or "mixture"; the verb "impastare" translates variously as "to knead", or "to paste". Italian usage of "impasto" includes both a painting and a potting technique. The root noun of impasto is pasta, whose primary meaning in Italian is paste.

Oil paint is most suitable to the impasto painting technique, due to its thickness and slow drying time. Acrylic paint can also be impastoed. Impasto is generally not possible in watercolour or tempera without the addition of thickening agent due to the inherent thinness of these media.

Impastoed paint serves several purposes. First, it makes the light reflect in a particular way, giving the artist additional control over the play of light on the painting. Second, it can add expressiveness to the painting, the viewer being able to notice the strength and speed applied by the artist. Third, impasto can push a painting into a three dimensional sculptural rendering. The first objective was originally sought by masters such as Rembrandt and Titian, to represent folds in clothes or jewels: it was then juxtaposed with more delicate painting. Much later, the French impressionists created entire canvases of rich impasto textures. Vincent van Gogh used it frequently for aesthetics and expression. Abstract expressionists such as Hans Hofmann and Willem De Kooning also made extensive use of it, motivated in part by a desire to create paintings which dramatically record the "action" of painting itself. Still more recently, Frank Auerbach has used such heavy impasto that some of his paintings become almost three-dimensional.>>
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Re: APOD: Sh2-239: Celestial Impasto (2011 Dec 08)

Post by TNT » Fri Dec 09, 2011 12:24 am

It looks like an underwater scene to me. :ssmile:
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Re: APOD: Sh2-239: Celestial Impasto (2011 Dec 08)

Post by saturn2 » Fri Dec 09, 2011 1:37 am

this image is very interesting.
The Universe is a " artist " very good


Re: APOD: Sh2-239: Celestial Impasto (2011 Dec 08)

Post by rosechaney » Tue Dec 13, 2011 3:01 pm

Lovely photo. Being a neophyte; mouse over names on the APOD photos would be very helpful. :ssmile: