Mar 25
Cosmos blanket
seen from China
seen from United States
seen from United States
seen from Türkiye
seen from France
seen from Sweden
seen from United States
seen from France
seen from China
seen from France
seen from United States
seen from France
seen from United States
seen from Argentina
seen from United Kingdom
seen from Netherlands
seen from France
seen from United States
seen from United States
seen from Singapore
Cosmos blanket
Year 18: NGC 6397 by NASA Hubble Space Telescope Via Flickr: This glittering image captures a globular cluster called NGC 6397, which sits 7,800 light-years away, making it one of the closest globular clusters to Earth. The cluster's blue stars are near the end of their lives. These stars have used up their hydrogen fuel that makes them shine. Now they are converting helium to energy in their cores, which fuses at a higher temperature resulting in a blue color. The reddish glow is from red giant stars that have consumed their hydrogen fuel and have expanded in size. The myriad small white objects include stars like our Sun. Credit: NASA, ESA, and H. Richer (University of British Columbia) For more information, visit: science.nasa.gov/missions/hubble/how-white-dwarfs-get-the... Find us on Twitter, Instagram, Facebook and YouTube
BECAUSE SPACE IS DEEP AND INCREDIBLY SPARKLY BEYOND ALL WORDS.
PIC INFO: Spotlight on an image of globular cluster NGC 6397 in the constellation Ara (the Altar). The cluster is home to a highly unusual system consisting of a fast spinning pulsar and a bloated red companion star. 🔭+📸: NASA, ESA and H. Richer (University of British Columbia).
ABOUT THE IMAGE (NASA press release):
Id: heic0608b
Type: Observation
Release date: 17 August 2006, 20:00
Related releases: heic0608
Size: 3750 x 5066 px
ABOUT THE OBJECT:
Name: NGC 6397
Type: Milky Way : Star : Grouping : Cluster : Globular
Distance: 9000 light years
Constellation: Ara
Category: Star Clusters
Source: www.spacetelescope.org/images/heic0608b.
Wide-Field Cluster
This ancient stellar jewelry box, a globular cluster called NGC 6397, glitters with the light from hundreds of thousands of stars.
Credit:NASA, ESA, and T. Brown and S. Casertano (STScI)
Acknowledgement: NASA, ESA, and J. Anderson (STScI)
(via Hubble's view of dazzling globular cluster NGC 6397 | ESA/Hubble)
NGC 6397 // Wagner
NGC 6397 // Massimo Di Fusco
NGC 6397, C86 // AnaTa
Discovered by Nicolas-Louis de Lacaille (1713-1762) in 1752, NGC 6397 is one of the nearest globular cluster to Earth, only 7,800 light years away in the constellation of Ara, the Altar. Knowing the cluster's distance and properties of its stars, astronomers could determine the cluster's age, finding that NGC 6397 is a cosmic relic at a staggering 13.4 billion years old!
The universe itself came into being about 13.8 billion years ago, making the stars in NGC 6397 some of our galaxy's first homesteaders!