彗星12P/庞士-布鲁克斯的彗尾结构
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作者： Samuel Chan
NGC 253: 满是尘埃的星系
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玫瑰星云的深场影像
一个繁忙的恒星场显示了几个大的红色星云。玫瑰星云就在其中，在右下方可以看到，而圆锥形星云周围的星云更大，在左上方可以看到。有关更多详细信息，请参阅说明。
一月的狼月
2024年2月13日 A January Wolf Moon Image Credit & Copyright: Antoni Zegarski Explanation: Did you see the full moon last month? During every month, on average, a full moon occurs in the skies over planet Earth. This is because the Moon takes a month to complete another orbit around our home planet, goes through all of its phases, and once again has its entir...
HFG1和Abell 6: 行星状星云
2024年2月12日 HFG1 & Abell 6: Planetary Nebulae Image Credit & Copyright: Julien Cadena & Mickael Coulon; Text: Natalia Lewandowska (SUNY Oswego) Explanation: Planetary nebulae like Heckathorn-Fesen-Gull 1 (HFG1) and Abell 6 in the constellation Cassiopeia are remnants from the last phase of a medium sized star like our Sun. In spite of their shapes...
直指月亮的火箭烟尘影子
2024年2月11日 Rocket Plume Shadow Points to the Moon Image Credit: Pat McCracken, NASA Explanation: Why would the shadow of a rocket’s launch plume point toward the Moon? In early 2001 during a launch of the space shuttle Atlantis, the Sun, Earth, Moon, and rocket were all properly aligned for this photogenic coincidence. First, for the space shuttle̵...
机智号毁损转子叶片的影子
2024年2月10日 The Shadow of Ingenuity’s Damaged Rotor Blade Image Credit: NASA, JPL-Caltech, Ingenuity Explanation: On January 18, 2024, during its 72nd flight in the thin Martian atmosphere, autonomous Mars Helicopter Ingenuity rose to an altitude of 12 meters (40 feet) and hovered for 4.5 seconds above the Red Planet. Ingenuity’s 72nd landing was ...
玫瑰不必是红色的
2024年2月9日 When Roses Aren’t Red Image Credit & Copyright: Tommy Lease (Denver Astronomical Society) Explanation: Not all roses are red of course, but they can still be very pretty. Likewise, the beautiful Rosette Nebula and other star forming regions are often shown in astronomical images with a predominately red hue, in part because the dominant e...
球状星团杜鹃47
2024年2月8日 Globular Star Cluster 47 Tuc Image Credit & Copyright: Marco Lorenzi, Angus Lau, Tommy Tse Explanation: Globular star cluster 47 Tucanae is a jewel of the southern sky. Also known as NGC 104, it roams the halo of our Milky Way Galaxy along with some 200 other globular star clusters. The second brightest globular cluster (after Omega Centauri) a...
心形的触须星系
2024年2月7日 The Heart Shaped Antennae Galaxies Image Credit & Copyright: Kent E. Biggs Explanation: Are these two galaxies really attracted to each other? Yes, gravitationally, and the result appears as an enormous iconic heart — at least for now. Pictured is the pair of galaxies cataloged as NGC 4038 and NGC 4039,known as the Antennae Galaxies. Beca...