The featured image shows a wide field with the red California Nebula on the left, the blue Pleiades Star Cluster on the right, and much brown
interstellar dust in between. Please see the explanation for more detailed information.
特色图片显示了一片广阔的视野，左侧是红色的加州星云，右侧是蓝色的昴宿星团，中间有许多棕色的星际尘埃。有关更多详细信息，请参阅说明。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
A famous Pleiades star cluster is shown but showing numerous parallel and curved filaments in different colors. The image is in several colors of infrared light. A rollover image shows the cluster in visible light with its familiar blue light. Please see the explanation for more detailed information.
图中显示的是著名的昴宿星团，但呈现出不同颜色的无数平行和弯曲的丝缕状结构。该图像采用多种颜色的红外光。翻转图像显示的是可见光下的昴宿星团，并带有我们熟悉的蓝光。 有关更多详细信息，请参阅说明。
2023年6月5日 In the Center of the Trifid Nebula Image Credit & Copyright: Martin Pugh Explanation: What’s happening at the center of the Trifid Nebula? Three prominent dust lanes that give the Trifid its name all come together. Mountains of opaque dust appear near the bottom, while other dark filaments of dust are visible threaded throughout the nebula. A single massive star visible near the center causes much of the Trifid’s glow. The Trifid, cataloged as M20, is only about 300,000 years old, making it among the youngest emission nebulas known. The star forming nebula lies about 9,000 light years away toward the constellation of the Archer (Sagittarius). The region pictured here spans about 20 light years. Portal Universe: Random APOD Generator Tomorrow’s picture: planet killer…
2021年05月09日 Horsehead and Orion Nebulas Image Credit & Copyright: Roberto Colombari & Federico Pelliccia Explanation: The dark Horsehead Nebula and the glowing Orion Nebula are contrasting cosmic vistas. Adrift 1,500 light-years away in one of the night sky’s most recognizable constellations, they appear in opposite corners of the above stunning mosaic. The familiar Horsehead nebula appears as a dark cloud, a small silhouette notched against the long red glow at the lower left. Alnitak is the easternmost star in Orion’s belt and is seen as the brightest star to the left of the Horsehead. Below Alnitak is the Flame Nebula, with clouds of bright emission and dramatic dark dust lanes. The magnificent emission region, the Orion Nebula (aka M42), lies at the upper right. Immediately…
2021年03月16日 IC 1318: The Butterfly Nebula in Gas and Dust Image Credit & Copyright: Alan Pham Explanation: In the constellation of the swan near the nebula of the pelican lies the gas cloud of the butterfly next to a star known as the hen. That star, given the proper name Sadr, is just to the right of the featured frame, but the central Butterfly Nebula, designated IC 1318, is shown in high resolution. The intricate patterns in the bright gas and dark dust are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity. The featured telescopic view captures IC 1318’s characteristic emission from ionized sulfur, hydrogen, and oxygen atoms mapped to the red, green, and blue hues of the popular Hubble…
