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NGC 6791: Digitized Sky Survey View

NGC 6791: Digitized Sky Survey View
This is a ground-based telescopic view of NGC 6791, located 13,300 light-years away in the constellation Lyra.

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    19h 20m 52.99s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    37° 46' 18.0"
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Lyra
  • Distance
    DistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
    13,300 light-years or 4 kiloparsecs

About the Data

  • Instrument
    InstrumentThe science instrument used to produce the data.
    DSS
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    NGC 6791
  • Object Description
    Object DescriptionThe type of astronomical object.
    Open Cluster
  • Release Date
    July 10, 2008
  • Science Release
    What’s My Age? Mystery Star Cluster Has 3 Different Birthdays
    Read the release
  • Credit
    Digitized Sky Survey (DSS), STScI/AURA, Palomar/Caltech, UKSTU/AAO

Downloads

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  • 200 × 200
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  • 300 × 386
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  • 1280 × 1647
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Related Images & Videos

White Dwarf Stars in Open Cluster NGC 6791

White Dwarf Stars in Open Cluster NGC 6791

In studying the dimmest burned-out stars in globular star cluster NGC 6791, NASA's Hubble Space Telescope has uncovered a paradox: three different populations of stars exist in an object where all the stars should have formed at the same time out of an interstellar cloud of gas...

NGC 6791: Full Hubble ACS Field

NGC 6791: Full Hubble ACS Field

The full Hubble Advanced Camera for Surveys field is full of stars estimated to be 8 billion years old. Two background galaxies can be seen at upper left.

Small Region of ACS Field Reveals Faint White Dwarfs

Small Region of ACS Field Reveals Faint White Dwarfs

A blow-up of view of a small region of the Advanced Camera for Surveys field reveals very faint white dwarfs. The hotter dwarfs are 4 billion years old and the cooler dwarfs are 6 billion years old.

NGC 6791: Three Stellar Ages Illustration

NGC 6791: Three Stellar Ages Illustration

Ground-Based Image Showing Location of NGC 6791

Ground-Based Image Showing Location of NGC 6791

Zooming into an Open Star Cluster Yields Unexpected Results

Zooming into an Open Star Cluster Yields Unexpected Results

This movie takes a closer loook at Hubble's image of NGC 6791, one of the oldest and largest open clusters known. The detection of white dwarfs that vary in age leads astronomers to rethink the theory that stars found in these clusters develop at the same time from large clouds...

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Details

Last Updated
Mar 28, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

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