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Dwarf Galaxy Pisces B

Dwarf Galaxy Pisces B

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    01h 19m 11.7s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    +11° 07' 18.22"
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Pisces
  • 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.
    29.0 million 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 were provided by HST proposal 13745: E. Tollerud (STScI), M. Geha (Yale University), J. Grcevich (AMNH), M. Putman (Columbia University), and D. Stern (JPL). The science team also includes D. Weisz (University of Washington) and A. Dolphin (Raytheon).
  • Instrument
    InstrumentThe science instrument used to produce the data.
    HST>ACS/WFC
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    November 8, 2014, Exposure Time: 2,092 seconds
  • Filters
    FiltersThe camera filters that were used in the science observations.
    F606W (wide V), F814W (I)
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Pisces B
  • Object Description
    Object DescriptionThe type of astronomical object.
    Dwarf galaxy
  • Release Date
    August 11, 2016
  • Science Release
    Hubble Uncovers a Galaxy Pair Coming in from the Wilderness
    Read the release
  • Credit
    NASA, ESA, and E. Tollerud (STScI)

Downloads

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Dwarf Galaxy Pisces B
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/WFC instrument. Two filters were used to sample different wavelength bands. 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: Cyan-blue: F606W (wide V) Red-orange: 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

Dwarf Galaxies in Pisces

Dwarf Galaxies in Pisces

NASA's Hubble Space Telescope has captured the glow of new stars in these small, ancient galaxies. Pisces A is on the left and Pisces B is on the right. Astronomers estimate that less than 100 million years ago both galaxies doubled their star-formation rate. An analysis of the...

Dwarf Galaxy Pisces A

Dwarf Galaxy Pisces A

Scale-Compass Image for Pisces A and B

Scale-Compass Image for Pisces A and B

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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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