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NASA | Take a "Swift" Tour of the Andromeda Galaxy
Content Provider | WatchKnowLearn |
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Description | NASA's Swift satellite has acquired the highest-resolution view of the neighboring spiral galaxy M31. Also known as the Andromeda Galaxy, M31 is the largest and closest such galaxy to our own. It's more than 220,000 light-years across and lies 2.5 million light-years away in the constellation Andromeda. Between May 25 and July 26, 2008, Swift's Ultraviolet/Optical Telescope (UVOT) acquired 330 images of M31 at wavelengths of 192.8, 224.6, and 260 nanometers. The images represent a total exposure time of 24 hours. Some 20,000 ultraviolet sources are visible in the image, including M32, a small galaxy in orbit around M31. Dense clusters of hot, young, blue stars sparkle in the disk beyond the galaxy's smooth, redder central bulge. Star clusters are especially plentiful along a ring about 150,000 light-years across. |
Language | English |
Access Restriction | Open |
Subject Keyword | k-12 homeschool homeschooling home school parents educational videos Galaxies and Intergalactic Phenomena k12 preK-12 Astronomy Science |
Content Type | Video |
Educational Role | Student Teacher |
Educational Use | Self Learning Lecture |
Time Required | PT3M6S |
Education Level | Class VIII Class XI Class IX Class XII Class VII Class X |
Pedagogy | Lecture cum Demonstration |
Resource Type | Video Lecture |
Subject | Space Science |