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File:Bok globules in IC2944.jpg

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原始檔案 ‎（1,480 × 1,498 像素，檔案大小：1.6 MB，MIME 類型：image/jpeg）

描述

Strangely glowing dark clouds float serenely in this remarkable and beautiful image taken with the Hubble Space Telescope. These dense, opaque dust clouds — known as globules — are silhouetted against nearby bright stars in the busy star-forming region, IC 2944.

Astronomer A.D. Thackeray first spied the globules in IC 2944 in 1950. Globules like these have been known since Dutch-American astronomer Bart Bok first drew attention to such objects in 1947.

But astronomers still know very little about their origin and nature, except that they are generally associated with areas of star formation, called HII regions due to the presence of hydrogen gas. IC 2944 is filled with gas and dust that is illuminated and heated by a loose cluster of massive stars. These stars are much hotter and much more massive than our Sun.
日期 (data acquired in 1999-02 and 2001-02)
來源 http://hubblesite.org/newscenter/archive/releases/2002/01/image/a (TIFF image)
作者 NASA and The Hubble Heritage Team (STScI/AURA)
授權許可
(重用此檔案)
Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

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說明

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描繪內容

IC 2944 中文 (已轉換拼寫)

包克雲球

恆星形成 中文 (已轉換拼寫)

star-forming region 英文

電離氫區 中文 (已轉換拼寫)

發射星雲

暗星雲

星際物質 中文 (已轉換拼寫)

星雲 中文 (已轉換拼寫)

多媒體型式

image/jpeg

核對和

e234eccb6cfe56961c1a07092f793ff85d698da9

斷定方法：​SHA-1 中文 (已轉換拼寫)

資料大小

1,681,392 位元組

高度

1,498 像素

寬度

1,480 像素

檔案歷史

點選日期/時間以檢視該時間的檔案版本。

日期/時間縮⁠圖尺寸使用者備⁠註
目前2009年6月19日 (五) 17:01於 2009年6月19日 (五) 17:01 版本的縮圖1,480 × 1,498（1.6 MB）TryphonHigher resolution.
2006年2月19日 (日) 11:21於 2006年2月19日 (日) 11:21 版本的縮圖746 × 750（90 KB）StanlekubBok globules in IC2944, as seen by the Hubble Space Telescope's WFPC2. Credits: NASA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: Bo Reipurth (University of Hawaii) [http://heritage.stsci.edu/2002/01/index.html http://heritage.stsci.ed

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取自「https://zh.wikipedia.org/wiki/File:Bok_globules_in_IC2944.jpg」