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Ground-based Field of View and Location of the Bubble Nebula

Ground-based Field of View and Location of the Bubble Nebula
This graphic shows the wider context of the Bubble Nebula. The National Optical Astronomy Observatory (NOAO) image (left) by Travis Rector has been rotated and cropped to be north-up and closer to the orientation of the Hubble Space Telescope image (right). In addition to the inner bubble seen in the Hubble image, the wider view shows a large cloud complex, including two larger shells surrounding the massive star near the center.

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    23h 20m 48.3s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    61° 12' 6.12"
  • 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.
    7,100 light-years (2,100 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.
    The Hubble data were provided by the HST proposal 14471 taken by the Hubble Heritage Team: Z. Levay, R. Avila, C. Christian, L. Frattare, J. Green, J. Mack, C. Martlin, S. Meyett, M. Mutchler, and S. Porter (STScI/AURA), and K. Noll (NASA/GSFC).
  • Instrument
    InstrumentThe science instrument used to produce the data.
    NOAO (left) and HST>WFC3/UVIS (right)
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    February 25/26, 2016, Exposure Time: 3.5 hours (HST)
  • Filters
    FiltersThe camera filters that were used in the science observations.
    HST: F502N ([O III]), F656N (H-alpha), and F658N ([N II])
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Bubble Nebula, NGC 7635
  • Object Description
    Object DescriptionThe type of astronomical object.
    Emission nebula, O 6.5 Star
  • Release Date
    April 21, 2016
  • Science Release
    Hubble Sees a Star ‘Inflating’ a Giant Bubble
    Read the release
  • Credits
    T. Rector/University of Alaska Anchorage, H. Schweiker/WIYN and NOAO/AURA/NSF, NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

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Ground-based Field of View and Location of the Bubble Nebula
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

The Hubble image (right) is a composite of separate exposures acquired by the WFC3/UVIS instrument. Several filters were used to sample various wavelengths. 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: F502N ([O III]) Green: F656N (H-alpha) Red: F658N ([N II])

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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Details

Last Updated
Feb 25, 2025
Contact
Media

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

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