File:NGC3254_-_HST_-_Potw2124a.jpg
維基百科,自由的 encyclopedia
![File:NGC3254 - HST - Potw2124a.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/7/70/NGC3254_-_HST_-_Potw2124a.jpg/709px-NGC3254_-_HST_-_Potw2124a.jpg)
原始檔案 (3,644 × 3,081 像素,檔案大小:5.55 MB,MIME 類型:image/jpeg)
摘要
描述NGC3254 - HST - Potw2124a.jpg |
English: A Galactic Powerhouse
This image shows the spiral galaxy NGC 3254, observed using Hubble's Wide Field Camera 3 (WFC3). WFC3 has the capacity to observe ultraviolet, visible and near-infrared light, and this image is a composite of observations taken in the visible and infrared. In this image, NGC 3254 looks like a typical spiral galaxy, viewed side-on. However, NGC 3254 has a fascinating secret that it is hiding in plain sight — it is a Seyfert galaxy, meaning that it has an extraordinarily active core, known as an active galactic nucleus, which releases as much energy as the rest of the galaxy put together. Seyfert galaxies are not rare — about 10% of all galaxies are thought to be Seyfert galaxies. They belong to the class of “active galaxies” — galaxies that have supermassive black holes at their centres that are actively accreting material, which releases vast amounts of radiation as it is accreted. There is a second, far more active, type of active galaxy that is known as a quasar. The active cores of Seyfert galaxies, such as NGC 3254, are brightest when observed in light outside the visible spectrum. At other wavelengths, this image would look very different, with the galaxy’s core shining extremely brightly. Credit: ESA/Hubble & NASA, A. Riess et al.
Coordinates Position (RA): 10 29 23.83 Position (Dec): 29° 30' 6.70" Field of view: 2.41 x 2.03 arcminutes Orientation: North is 7.3° left of vertical Colours & filters Band Wavelength Telescope Optical Long pass 350 nm Hubble Space Telescope WFC3 Optical V 555 nm Hubble Space Telescope WFC3 Optical I 814 nm Hubble Space Telescope WFC3 Infrared H 1.6 μm Hubble Space Telescope WFC3. |
日期 | 14 June 2021, 06:00(Release) |
來源 | https://esahubble.org/images/potw2124a/ |
作者 |
Credit: ESA/Hubble & NASA, A. Riess et al. |
授權條款
![w:zh:創用CC](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![姓名標示](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
- 您可以自由:
- 分享 – 複製、發佈和傳播本作品
- 重新修改 – 創作演繹作品
- 惟需遵照下列條件:
- 姓名標示 – 您必須指名出正確的製作者,和提供授權條款的連結,以及表示是否有對內容上做出變更。您可以用任何合理的方式來行動,但不得以任何方式表明授權條款是對您許可或是由您所使用。
說明
在此檔案描寫的項目
描繪內容
創用CC姓名標示4.0國際 繁體中文 (已轉換拼寫)
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 | 2021年6月16日 (三) 04:17 | ![]() | 3,644 × 3,081(5.55 MB) | Fabian RRRR | == {{int:filedesc}} == {{Information |description={{en|1=A Galactic Powerhouse This image shows the spiral galaxy NGC 3254, observed using Hubble's Wide Field Camera 3 (WFC3). WFC3 has the capacity to observe ultraviolet, visible and near-infrared light, and this image is a composite of observations taken in the visible and infrared. In this image, NGC 3254 looks like a typical spiral galaxy, viewed side-on. However, NGC 3254 has a fascinating secret that it is hiding in plain sight — it is... |
檔案用途
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
此檔案中包含其他資訊,這些資訊可能是由數位相機或掃描器在建立或數位化過程中所新增的。若檔案自原始狀態已被修改,一些詳細資料可能無法完整反映出已修改的檔案。
來源 | ESA/Hubble |
---|---|
製作/提供者 | ESA/Hubble & NASA, A. Riess et al. |
簡稱 |
|
影像標題 |
|
使用條款 |
|
資料產生的日期時間 | 2021年6月14日 (一) 06:00 |
使用軟體 | Adobe Photoshop 22.3 (Windows) |
檔案修改日期時間 | 2021年5月14日 (五) 10:27 |
數位化的日期時間 | 2021年4月26日 (一) 12:17 |
詮釋資料最後修改日期 | 2021年5月14日 (五) 12:27 |
原始文件唯一識別碼 | xmp.did:2d647ea3-30de-8242-aa07-6b10bc85499d |
關鍵字 | NGC 3254 |
聯絡資訊 |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM 版本 | 4 |