Fail:All Quiet in the Nursery?.jpg

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KeteranganAll Quiet in the Nursery?.jpg	English: The dark patch snaking across this spectacular image of a field of stars in the constellation of Ophiuchus (The Serpent-bearer) is not quite what it appears to be. Although it looks as if there are no stars here, they are hidden behind this dense cloud of dust that blocks out their light. This particular dark cloud is known as LDN 1768. Despite their rather dull appearance, dark nebulae like LDN 1768 are of huge interest to astronomers, as it is here that new stars form. Inside these vast stellar nurseries there are protostars — stars at the earliest stage of their lives, still coalescing out of the gas and dust in the cloud. Protostars are relatively cold and have not yet begun to produce enough energy to emit visible light. Instead, they emit radiation at submillimetre wavelengths, which human eyes cannot see. Luckily, unlike visible light, light at submillimetre wavelengths is not absorbed by the surrounding dust. By using special telescopes that are sensitive to submillimetre radiation, like the Atacama Large Millimeter/submillimeter Array (ALMA) observatory, we can see through the dust and find out more about the protostars within the cloud. Eventually, the protostars will become dense and hot enough to start the nuclear reactions that will produce visible light and they will start to shine. When this happens, they will blow away the cocoon of dust surrounding them and cause any remaining gas to emit light as well, creating the spectacular light show known as an HII region.
Tarikh	21 Mac 2016
Sumber	http://www.eso.org/public/images/potw1612a/
Pengarang	ESO

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semasa	11:03, 14 Februari 2024		8,831 × 8,418 (38.77 MB)	C messier	full size
	23:52, 22 Mac 2016		1,280 × 1,220 (806 KB)	Jmencisom	User created page with UploadWizard

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Fail ini mengandungi maklumat tambahan daripada kamera digital atau pengimbas yang digunakan untuk menghasilkannya. Jika fail ini telah diubah suai daripada rupa asalnya, beberapa butiran dalam maklumat ini mungkin sudah tidak relevan.

Kredit/Pembekal	ESO
Sumber	European Southern Observatory
Tajuk ringkas	All quiet in the nursery?
Tajuk imej	The dark patch snaking across this spectacular image of a field of stars in the constellation of Ophiuchus (The Serpent-bearer) is not quite what it appears to be. Although it looks as if there are no stars here, they are hidden behind this dense cloud of dust that blocks out their light. This particular dark cloud is known as LDN 1768. Despite their rather dull appearance, dark nebulae like LDN 1768 are of huge interest to astronomers, as it is here that new stars form. Inside these vast stellar nurseries there are protostars— stars at the earliest stage of their lives, still coalescing out of the gas and dust in the cloud. Protostars are relatively cold and have not yet begun to produce enough energy to emit visible light. Instead, they emit radiation at submillimetre wavelengths, which human eyes cannot see. Luckily, unlike visible light, light at submillimetre wavelengths is not absorbed by the surrounding dust. By using special telescopes that are sensitive to submillimetre radiation, like the Atacama Large Millimeter/submillimeter Array (ALMA) observatory, we can see through the dust and find out more aboutthe protostars within the cloud. Eventually, the protostars will become dense and hot enough to start the nuclear reactions that will produce visible light and they will start to shine. When this happens, they will blow away the cocoon of dust surrounding them and cause any remaining gas to emit light as well, creating the spectacular light show known as an HII region.
Terma-terma penggunaan	Creative Commons Attribution 4.0 International License
Tarikh dan waktu penjanaan data	06:00, 21 Mac 2016
Komen fail JPEG	The dark patch snaking across this spectacular image of a field of stars in the constellation of Ophiuchus (The Serpent-bearer) is not quite what it appears to be. Although it looks as if there are no stars here, they are hidden behind this dense cloud of dust that blocks out their light. This particular dark cloud is known as LDN 1768. Despite their rather dull appearance, dark nebulae like LDN 1768 are of huge interest to astronomers, as it is here that new stars form. Inside these vast stellar nurseries there are protostars — stars at the earliest stage of their lives, still coalescing out of the gas and dust in the cloud. Protostars are relatively cold and have not yet begun to produce enough energy to emit visible light. Instead, they emit radiation at submillimetre wavelengths, which human eyes cannot see. Luckily, unlike visible light, light at submillimetre wavelengths is not absorbed by the surrounding dust. By using special telescopes that are sensitive to submillimetre radiation, like the Atacama Large Millimeter/submillimeter Array (ALMA) observatory, we can see through the dust and find out more about the protostars within the cloud. Eventually, the protostars will become dense and hot enough to start the nuclear reactions that will produce visible light and they will start to shine. When this happens, they will blow away the cocoon of dust surrounding them and cause any remaining gas to emit light as well, creating the spectacular light show known as an HII region.
Kata kunci	ldn 1768
Maklumat hubungan	http://www.eso.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
Versi IIM	4

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berhak cipta

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Creative Commons Attribution 4.0 International ^Inggeris

masa permulaan

21 Mac 2016

media type ^Inggeris

image/jpeg

saiz data

40,652,090 bait

tinggi

8,418 piksel

lebar

8,831 piksel

hasil tambah semak

9493c5e0b32778d68f1c9898bddbabbdf6304f77

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Penggunaan fail sejagat

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Captions

Items portrayed in this file

Creative Commons Attribution 4.0 International Inggeris

21 Mac 2016

media type Inggeris

image/jpeg

40,652,090 bait

8,418 piksel

8,831 piksel

9493c5e0b32778d68f1c9898bddbabbdf6304f77

Sejarah fail

Penggunaan fail

Penggunaan fail sejagat

Metadata

Creative Commons Attribution 4.0 International ^Inggeris

media type ^Inggeris