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Compass and Scale Image of Abell 2744

Compass and Scale Image of Abell 2744

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    00h 14m 21s.2
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    -30° 23' 50".1
  • 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.
    3.5 billion light-years

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 of Abell 2744 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) and the Frontier Fields Team. The science team includes: M. Montes and I. Trujillo (Instituto de Astrofísica de Canarias/Universidad de La Laguna, Tenerife, Spain).
  • 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 2013 - July 2014
  • 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
    October 30, 2014
  • Science Release
    Hubble Sees ‘Ghost Light’ From Dead Galaxies
    Read the release
  • Credits
    Illustration: NASA, ESA, and Z. Levay (STScI); Science: NASA, ESA, M. Montes (IAC), and J. Lotz, M. Mountain, A. Koekemoer, and the HFF Team (STScI)

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Compass and Scale Image of Abell 2744
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) + WFC3/IR F105W (Y) Red: WFC3/IR F125W (J) + F140W (JH) + F160W (H) Blue: J-band Surface Brightness

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 Sees 'Ghost Light' from Dead Galaxies in Galaxy Cluster Abell 2744

Hubble Sees 'Ghost Light' from Dead Galaxies in Galaxy Cluster Abell 2744

The massive galaxy cluster Abell 2744, nicknamed Pandora's Cluster, takes on a ghostly look in this Hubble Space Telescope view where the total starlight from the cluster has been artificially colored blue. This plot reveals that not all the starlight is contained within 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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