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H-alpha image of the Sun's chromosphere
image
Caption: This false-color image was captured with a 10-cm telescope at the Big Bear Solar Observatory (BBSO) in the United States in July 2002. It depicts the full disk of the Sun using the H-alpha emission line of hydrogen. When observed in this spectral line, the Sun's chromosphere appears particularly prominent due to hydrogen atoms emitting light at the specific wavelength. This emission produces a distinctive red color, making features such as spicules (jets of plasma that look hair-like) and plage (bright patches in the chromosphere) highly visible. Several small solar prominences can be seen protruding from the edge of the solar disk. When prominences (also known as filaments) cross the face of the disk they appear as dark threads caused by the cooler material in the prominence absorbing light. The chromosphere is also visible in the violet part of the solar spectrum due to ionized calcium showing emissions in these wavelengths.
Credit: Big Bear Solar Observatory (BBSO)/New Jersey Institut of Technology (NJIT)
Credit Link
詞彙表術語:
色球 , 日珥 , 太陽 , 光譜線
Categories:
The Sun
License: Public Domain Public Domain icons
檔案
( image
2.82 MB)
Measure the Solar Diameter astroEDU educational activity (links to astroEDU website) Description: Hands-on activity to measure the Sun by using household materials.
詞彙表術語:
軌道 , 太陽
Tags:
Hands-on
, Measurement
, Observing
, Scales
Age Ranges:
12-14
, 14-16
, 16-19
, 19+
Education Level:
Middle School
Areas of Learning:
Structured-inquiry learning
Costs:
Low Cost
Group Size:
Group
Skills:
Communicating information
, Constructing explanations
, Using mathematics and computational thinking
Authors: Edward Gomez
License: Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) icons
太陽黑子
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Caption: 在這張圖片中，太陽在2012年7月至8月的近九天里布滿了成群的太陽黑子。這張圖片中看到的太陽黑子是太陽耀斑和日冕物質拋射（CME）的源頭。特別是，在這張圖片中，太陽正接近其週期（太陽週期）中的太陽活動最大值，我們可以看到許多黑子沿著太陽赤道形成。這些太陽黑子和活動出現在太陽的南半球，在此之前，大部分活動都發生在北半球。
Credit: NASA/SDO/HMI
Credit Link
詞彙表術語:
太陽 , 太陽黑子 , 恆星活動
Categories:
The Sun
License: Public Domain Public Domain icons
檔案
( image
153.32 kB)
