Hubble/WFPC2 and ESO/2.2-m Composite Image of 30 Dor Runaway Star

Hubble/WFPC2 and ESO/2.2-m Composite Image of 30 Dor Runaway Star

Credits

NASA, ESA, J. Walsh (ST-ECF), and ESO;
Acknowledgment: Processing by Z. Levay (STScI)

About The Object
Object Name 30 Dor #016
Object Description Massive Runaway Star in the Large Magellanic Cloud
R.A. Position 05h 37m 8.87s
Dec. Position -69° 7' 20.35"
Constellation Dorado
Distance 170,000 light-years (52,000 parsecs)
About The Data
Data Description The 30 Doradus "runaway" star image is based on Hubble WFPC2 data from proposal : J. Walsh (ESO/ST-ECF), et al. This image was combined with a ground-based ESO 2.2-m WFI image of the Tarantula Nebula by J. Alves (Calar Alto, Spain), and B. Vandame and Y. Beletski (ESO). Filters in the ESO image include: B, V, H-alpha and [O III].
Instrument HST>WFPC2
Exposure Dates June 30, 1995, Exposure Time: 30 minutes
Filters ESO: B, [O III], V, and H-alpha WFPC: F656N (H-alpha)
About The Image
Color Info This image is a composite of two separate exposures made by the WFPC2 instrument on the Hubble Space Telescope along with ground-based observations. In total, two filters were used to sample narrow wavelength emission and two filters were used to sample broadband emission. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: ESO B Green: ESO [O III] + V Red: ESO H-alpha Luminosity*: WFPC2 F656N (H-alpha) *The higher resolution, black-and-white Hubble image and the lower resolution, color ESO images were combined using a technique that takes luminosity (brightness) information from the black-and-white ACS image and color information from the composite ESO 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.
Compass Image Hubble/WFPC2 and ESO/2.2-m Composite Image of 30 Dor Runaway Star
About The Object
Object Name A name or catalog number that astronomers use to identify an astronomical object.
Object Description The type of astronomical object.
R.A. Position Right ascension – analogous to longitude – is one component of an object's position.
Dec. Position Declination – analogous to latitude – is one component of an object's position.
Constellation One of 88 recognized regions of the celestial sphere in which the object appears.
Distance The 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.
Dimensions The physical size of the object or the apparent angle it subtends on the sky.
About The Data
Data Description
  • Proposal: 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.
Instrument The science instrument used to produce the data.
Exposure Dates The date(s) that the telescope made its observations and the total exposure time.
Filters The camera filters that were used in the science observations.
About The Image
Image Credit The primary individuals and institutions responsible for the content.
Publication Date The date and time the release content became public.
Color Info A brief description of the methods used to convert telescope data into the color image being presented.
Orientation The rotation of the image on the sky with respect to the north pole of the celestial sphere.

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