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Compass and Scale Image for Abell 2744

Image titled “Hubble Frontier Fields, Abell 2744, Hubble Space Telescope” with compass arrows, scale bar, and color key.

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    00h 14m 19.5s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    -30° 23' 19.18"
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Sculptor
  • 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.
    Redshift: z=0.308

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.
    Data were obtained as part of the HST proposals 11689: R. Dupke (Eureka Scientific Inc.) et al., 13386: S. Rodney (JHU) et al., and 13495: J. Lotz (STScI) et al.
  • Instrument
    InstrumentThe science instrument used to produce the data.
    HST>ACS/WFC and HST>WFC3/IR
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    October 2009; August - November 2013 Exposure Time: 67 hours
  • Filters
    FiltersThe camera filters that were used in the science observations.
    ACS/WFC: F435W (B), F606W (V), F814W (I) WFC3/IR: F105W (Y), F125W (J), F140W (JH), F160W (H)
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Abell 2744, Pandora's Cluster
  • Object Description
    Object DescriptionThe type of astronomical object.
    Galaxy Cluster and Gravitational Lens
  • Release Date
    January 7, 2014
  • Science Release
    Hubble’s First Frontier Field Finds Thousands of Unseen, Faraway Galaxies
    Read the release

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Image titled “Hubble Frontier Fields, Abell 2744, Hubble Space Telescope” with compass arrows, scale bar, and color key.
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

This image is a composite of separate exposures acquired by the ACS and WFC3 instruments on the Hubble Space Telescope. Several filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Blue: F435W (B) + F606W (V) Green: F814W (I) + F105W (Y) Red: F125W (J) + F140W (JH) + F160W (H)

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.

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Zoom into the Abell 2744

Zoom into the Abell 2744

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Details

Last Updated
Mar 14, 2025
Contact
Media

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

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