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Compass and Scale Image of M13

Compass and Scale Image of M13

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    16h 41m 41.63s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    36° 27' 40.71"
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Hercules
  • 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.
    25,000 light-years (7.6 kiloparsecs)
  • Dimensions
    DimensionsThe physical size of the object or the apparent angle it subtends on the sky.
    This image is roughly 4.9 arcminutes (36 light-years or 11 parsecs) wide.

About the Data

  • Data Description
    Data DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
    Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
    Hubble image HST Proposal: 8174 Science Team: W. van Altena (Yale University) HST Proposal: 8278 Science Team: C. Bailyn (Yale University) HST Proposal: 10349 Science Team: W. Lewin (MIT) A. Sarajedini HST Proposal: 10775 Science Team: A. Sarajedini (University of Florida)
  • Instrument
    InstrumentThe science instrument used to produce the data.
    HST>WFPC2 and HST>ACS/WFC, and NOAO>20-inch telescope (ground-based image)
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    November 1999, April 2000, August 2005, and April 2006
  • Filters
    FiltersThe camera filters that were used in the science observations.
    Hubble image ACS/WFC: F435W (B), F555W (V), and F814W (I) WFPC2: F555W (V), F785LP (I), and F814W (I)
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    M13, NGC 6205
  • Object Description
    Object DescriptionThe type of astronomical object.
    Globular Cluster
  • Release Date
    December 4, 2008
  • Science Release
    A Celestial Snow Globe of Stars
    Read the release
  • Credits
    Illustration: NASA, ESA, and Z. Levay (STScI); Hubble Image: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

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Compass and Scale Image of M13
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

The image is a composite of separate exposures made by the ACS and WFPC2 instruments on the Hubble Space Telescope. Several filters were used to sample broad wavelengths. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Hubble image Blue: ACS/WFC F435W (B), Green: ACS/WFC F555W (V) Red: ACS/WFC F814W (I) Cyan/blue: WFPC2 F555W (V), Yellow/orange: WFPC2 F785LP (I) + WFPC2 F814W (I)

Compass and Scale
Compass and ScaleAn astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made.

Related Images & Videos

Hubble ACS/WFPC2 Image of Globular Cluster M13

Hubble ACS/WFPC2 Image of Globular Cluster M13

Like a whirl of shiny flakes sparkling in a snow globe, Hubble catches an instantaneous glimpse of many hundreds of thousands of stars moving about in the globular cluster M13, one of the brightest and best-known globular clusters in the northern sky. This glittering metropolis...

Ground-Based Image of M13

Ground-Based Image of M13

Ground-based image of M13 taken with the NOAO Visitor's Program 20-inch telescope at Kitt Peak National Observatory.

Hubble Image of M13's Nucleus

Hubble Image of M13's Nucleus

Hubble catches an instantaneous glimpse of many hundreds of thousands of stars moving about in the globular cluster M13, one of the brightest and best-known globular clusters in the northern sky. This glittering metropolis of stars is easily found in the winter sky in the...

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Details

Last Updated
Feb 17, 2025
Contact
Media

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

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