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Location of ACS detail in NGC 6397
Globular Cluster NGC 6397 taken in red light by the UK Schmidt Telescope of the Anglo-Australian Telescope. The green rectangle to the left and below the bright central of the cluster shows the location of the detailed image made by Hubble Space Telescope's Advanced Camera for Surveys.
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.18h 5m 16.36s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.-28° 53' 42.0"
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.NGC 6397
- Release DateAugust 17, 2006
- Science ReleaseHubble Sees Faintest Stars in a Globular Cluster
- Credits
Related Images & Videos

Faintest Stars in Globular Cluster NGC 6397
Looking like glittering jewels, the stars in this Hubble Space Telescope image at left are part of the ancient globular star cluster NGC 6397. Scattered among these brilliant stars are extremely faint stars. Hubble's Advanced Camera for Surveys has taken a census of the cluster...

Tale of Two Stellar Populations in Globular Cluster NGC 6397
This graph schematically plots two populations of stars Hubble has seen in a neighboring star cluster. The graph, a simplified version of the original data, plots stellar brightness (vertical axis) against stellar color-temperature. The normal main sequence stars in the cluster...
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Last Updated
Feb 17, 2025
Contact
Media
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov