How does the behavior of the light beam differ from the behavior of a bullet fired in the same direction from the top of the freight car? What is the difference between an open and a globular star cluster? Why would a laser dot sight become bigger the farther away its pointed?
Galaxy Cluster Properties, Types & Examples from Chapter 4 / Lesson 10 18K Explore the different types of galaxy clusters. Learn what a galaxy cluster is and understand its properties. Discover what cluster the Milky Way is in. Related to this QuestionWhat...
fragments or satellites, where the clusters form. We review the impact of multiple populations on different regions of the colour–magnitude diagram and underline the constraints related to the observed abundances of lithium, to the cluster dynamics, and to the frequency of binaries in stars of dif...
The Local Group is one member of a larger structure called the Virgo Supercluster, which is surrounded by several great intergalactic voids, according toDurham University. At the center of this supercluster sits the Virgo Cluster, a massive collection of 1,000 to 2,000 galaxies about 54 million...
The article presents information on a globular star cluster named Messier 54, orbiting around the Milky Way galaxy, that was found by French astronomer Charles Messier in the late 18th century. However, in 1994, it was dis...
What's in the night sky tonight? May astronomy highlights 2 May: Vesta reaches opposition, potentially naked-eye visible (evening) 4 May: Mars near the Beehive Cluster (evening) 5 May: Lunar X clair-obscur effect visible on the Moon (01:14 BST (00:14 UT)) 15 May: Unusual daylight tr...
Stellar streams are lines of stars moving together across galaxies, often originating in smaller blobs of stars that collided with the galaxy in question. The stars in GD-1, remnants of a "globular cluster" that plunged into the Milky Way a long time ago, are stretched out in a long line...
The centre is commonly known as a supermassive black hole. The centre of the Milky Way is so far away that we have not yet been able to determine what is there. We know that we are in the suburbs of the Galaxy. Centre of the Milky Way...
But star clusters are notgalaxies, which, confusingly, are also gravitationally bound groups of stars. "The most straightforward differentiation would be whether a group of stars is bound together by their own gravity or if you need to have dark matter included in that cluster in order to keep...
Why do they cluster together? What was our Sun like in the past? Can we predict giant flares or periods of dimming? 为什么它们会聚集在一起?过去我们的太阳是什么样子的?我们能预测巨大的耀斑或变暗期吗? And interferometers will certainly help us find planets, and of course the more planets you...