保护地球，探索宇宙，发现文明
2021年05月20日 M13: The Great Globular Cluster in Hercules Image Credit & Copyright: Martin Dufour Explanation: In 1716, English astronomer Edmond Halley noted, “This is but a little Patch, but it shews itself to the naked Eye, when the Sky is serene and the Moon absent.” Of course, M13 is now less modestly recognized as the Great Globular Clus...
2021年02月21日 NGC 2244: A Star Cluster in the Rosette Nebula Image Credit & Copyright: Don Goldman Explanation: In the heart of the Rosette Nebula lies a bright open cluster of stars that lights up the nebula. The stars of NGC 2244 formed from the surrounding gas only a few million years ago. The featured image taken in January using multiple exposures an...
2021年01月10日 Star Cluster R136 Breaks Out Image Credit: NASA, ESA, & F. Paresce (INAF-IASF), R. O’Connell (U. Virginia) et al. Explanation: In the center of nearby star-forming region lies a huge cluster containing some of the largest, hottest, and most massive stars known. These stars, known collectively as star cluster R136, part of the Tarantula...
2020 March 19 M13: The Great Globular Cluster in Hercules Image Credit & Copyright: Eric Coles and Mel Helm Explanation: In 1716, English astronomer Edmond Halley noted, “This is but a little Patch, but it shews itself to the naked Eye, when the Sky is serene and the Moon absent.” Of course, M13 is now less modestly recognized as the Great G...
2020 January 23 Globular Star Cluster NGC 6752 Image Credit & Copyright: Jose Joaquin Perez Explanation: Some 13,000 light-years away toward the southern constellation Pavo, the globular star cluster NGC 6752 roams the halo of our Milky Way galaxy. Over 10 billion years old, NGC 6752 follows clusters Omega Centauri and 47 Tucanae as the third brightest g...
2020 January 22 The Hyades Star Cluster Image Credit & Copyright: Jose Mtanous Explanation: It is the closest cluster of stars to the Sun. The Hyades open cluster is bright enough to have been remarked on even thousands of years ago, yet is not as bright or compact as the nearby Pleiades (M45) star cluster. Pictured here is a particularly deep image of t...
2019 September 1 M45: The Pleiades Star Cluster Image Credit & Copyright: Marco Lorenzi (Glittering Lights) Explanation: Have you ever seen the Pleiades star cluster? Even if you have, you probably have never seen it as dusty as this. Perhaps the most famous star cluster on the sky, the bright stars of the Pleiades can be seen without binoculars from eve...