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Carina Nebula Details: Great Clouds

Carina Nebula Details: Great Clouds
These great clouds of cold hydrogen resemble summer afternoon thunderheads. They tower above the surface of a molecular cloud on the edge of the nebula. So-called "elephant trunk" pillars resist being heated and eaten away by blistering ultraviolet radiation from the nebula's brightest stars.

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    10h 43m 59.99s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    -59° 52' 59.99"
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Carina
  • 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.
    Approximately 7,500 light-years (2,300 parsecs)

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.

    This color image combines many exposures from Hubble Space Telescope's Advanced Camera for Surveys (ACS)* and NOAO/AURA/NSF Cerro-Tololo Interamerican Observatory's (CTIO) 4m Blanco Telescope and MOSAIC2 camera.
    The ACS data was from the HST proposal 10241: N. Smith (University of California, Berkeley), J. Bally (University of Colorado at Boulder), N. Walborn (STScI), and J. Morse (NASA/GSFC).
    *A small area of the Hubble ACS image that was saturated around the brightest star in the field, Eta Carinae, was replaced with images from previous shorter exposures from Hubble's Wide Field Planetary Camera 2.

    The CTIO observing team includes: N. Smith (University of California, Berkeley), J. Bally (University of Colorado at Boulder), and J. Walawender (Institute for Astronomy/University of Hawaii).
    *A small area of the Hubble ACS image that was saturated around the brightest star in the field, Eta Carinae, was replaced with images from previous shorter exposures from Hubble's Wide Field Planetary Camera 2.

  • Instrument
    InstrumentThe science instrument used to produce the data.
    HST>ACS, CTIO>4m Blanco Telescope and CTIO>MOSAIC2
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    March - July 2005 (HST), December 2001 - March 2003 (CTIO)
  • Filters
    FiltersThe camera filters that were used in the science observations.
    ACS: F658N (H-alpha+[N II])CTIO: ([O III] 501nm), (H-alpha+[N II] 658nm) and ([S II] 672+673nm)
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Carina Nebula, NGC 3372
  • Object Description
    Object DescriptionThe type of astronomical object.
    Emission Nebula in the Milky Way Galaxy
  • Release Date
    April 24, 2007
  • Science Release
    The Carina Nebula: Star Birth in the Extreme
  • Credits
    Hubble Image: NASA, ESA, N. Smith (University of California, Berkeley), and The Hubble Heritage Team (STScI/AURA); CTIO Image: N. Smith (University of California, Berkeley) and NOAO/AURA/NSF

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Carina Nebula Details: Great Clouds
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 many separate exposures made by the ACS instrument on the Hubble Space Telescope along with ground-based observations. In total, three filters were used to sample narrow wavelength emission. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:Luminosity*: F658N (H-alpha+[N II])Blue: CTIO ([O III] 501nm)Green: CTIO (H-alpha+[N II] 658nm)Red: CTIO ([S II] 672+673nm)*The higher resolution, black & white Hubble image and the lower resolution, color CTIO images were combined using a technique that takes luminosity (brightness) information from the black and white ACS image and color information from the composite CTIO image. This preserves all of the higher-resolution detail from the Hubble data while rendering a color image representing the physical processes in this active region of space.

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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