High School First light from the Euclid telescope

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SUMMARY

The Euclid telescope has successfully captured its first light images, showcasing its unique capability to study galaxy shapes and redshifts. Notably, it has provided an unprecedented view of the globular cluster NGC 6397, located approximately 7800 light-years from Earth. This observation is significant as Euclid is the only telescope capable of simultaneously observing an entire globular cluster while distinguishing individual stars, which are crucial for understanding the Milky Way's history and dark matter distribution.

PREREQUISITES
  • Understanding of galaxy morphology and redshift concepts
  • Familiarity with globular clusters and their significance in astrophysics
  • Knowledge of the Euclid mission objectives and capabilities
  • Basic principles of gravitational interactions in stellar systems
NEXT STEPS
  • Research the Euclid mission's scientific goals and instrumentation
  • Learn about the methods used to measure galaxy shapes and redshifts
  • Explore the significance of globular clusters in cosmology
  • Investigate the role of dark matter in galaxy formation and evolution
USEFUL FOR

Astronomers, astrophysicists, and space science enthusiasts interested in the latest advancements in observational astronomy and the study of dark matter and galaxy formation.

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Kind of a boring image. Can you say what is different about this telescope? :wink:

1699494267915.png
 

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berkeman said:
Kind of a boring image.
Well, the post was to tell about first light and less about showing a pretty picture, although I admit I probably did pick the Horsehead Nebula because it is always pretty.

Given Euclids mission I guess it would have been more appropriate to show a wide field like this:
1699513998367.png
This sparkly image shows Euclid’s view on a globular cluster called NGC 6397. This is the second-closest globular cluster to Earth, located about 7800 light-years away. Globular clusters are collections of hundreds of thousands of stars held together by gravity. Currently no other telescope than Euclid can observe an entire globular cluster in one single observation, and at the same time distinguish so many stars in the cluster. These faint stars tell us about the history of the Milky Way and where dark matter is located.
 
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Now that's a pretty picture!
 
https://en.wikipedia.org/wiki/MoM-z14 Any photon with energy above 24.6 eV is going to ionize any atom. K, L X-rays would certainly ionize atoms. https://www.scientificamerican.com/article/whats-the-most-distant-galaxy/ The James Webb Space Telescope has found the most distant galaxy ever seen, at the dawn of the cosmos. Again. https://www.skyatnightmagazine.com/news/webb-mom-z14 A Cosmic Miracle: A Remarkably Luminous Galaxy at zspec = 14.44 Confirmed with JWST...

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