維基百科

File:IC 342.jpg

原始檔案 （1,963 × 1,963 像素，檔案大小：925 KB，MIME 類型：image/jpeg）

摘要

描述
English: A leggy cosmic creature comes out of hiding in this new infrared view from NASA's Wide-field Infrared Survey Explorer, or WISE. The spiral beauty, called IC 342 and sometimes the "hidden galaxy", is shrouded behind our own galaxy, the Milky Way. Stargazers and professional astronomers have a hard time seeing the galaxy through the Milky Way's bright band of stars, dust and gas. WISE's infrared vision cuts through this veil, offering a crisp view.

In a spiral galaxy like IC 342, dust and gas are concentrated in the arms. The denser pockets of gas trigger the formation of new stars, as represented here in green and yellow. The core, shown in red, is also bursting with young stars, which are heating up dust. Stars that appear blue reside within our Milky Way, between us and IC 342.

This galaxy has been of great interest to astronomers because it is relatively close. However, determining its distance from Earth has proven difficult due to the intervening Milky Way. Astronomer Edwin Hubble first thought the galaxy might belong to our own Local Group of galaxies, but current estimates now place it farther away, at about 6.6 to 11 million light-years.

This image was made from observations by all four infrared detectors aboard WISE. Blue and cyan represent infrared light at wavelengths of 3.4 and 4.6 microns, which is primarily light from stars. Green and red represent light at 12 and 22 microns, which is primarily emission from warm dust.
日期
來源 http://photojournal.jpl.nasa.gov/catalog/PIA13021
作者 NASA/JPL-Caltech/UCLA
本圖像或影音收錄於美國國家航空暨太空總署 （NASA）噴射推進實驗室（Jet Propulsion Laboratory），其照片編號為： PIA13021

此標籤不表示文件的著作權狀態。任何文件在附有此標籤的同時還需要一個有效的著作權標籤。請參閱許可協議說明頁面以了解更多資訊。
其他語言：

العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

授權條款

Public domain 本作品由NASA創作，屬於公有領域。根據NASA的版權政策：“NASA的創作除非另有聲明否則不受版權保護。”（參見：Template:PD-USGov/zh，NASA版權政策或JPL圖像使用政策）
警告:

說明

添加單行說明來描述出檔案所代表的內容

在此檔案描寫的項目

描繪內容

著作權狀態 繁體中文 (已轉換拼寫)

公有領域

管轄區：​美國
斷定方法：​美國聯邦政府的作品 繁體中文 (已轉換拼寫)

多媒體型式 繁體中文 (已轉換拼寫)

image/jpeg

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⁠圖尺寸用戶備⁠註
目前2010年4月27日 (二) 15:07於 2010年4月27日 (二) 15:07 版本的縮圖1,963 × 1,963（925 KB）Hive001{{Information |Description={{en|1=Spiral Galaxy IC 342, also called "hidden galaxy". This galaxy is hidden behind the Milky Way, our own galaxy. NASA's WISE project made it visible with infrared vision.}} |Source=NASA, Caltech |Author=NASA, Caltech |Date=

下列頁面有用到此檔案：

全域檔案使用狀況

以下其他 wiki 使用了這個檔案：

詮釋資料

此檔案中包含擴展的資訊。這些資訊可能是由數位相機或掃描器在建立時或數位化過程中所加入。

如果此檔案的來源檔案已被修改，一些資訊在修改後的檔案中將不能完全反映出來。

取自 "https://zh.wikipedia.org/wiki/File:IC_342.jpg"