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NGC 1546 Compass Image
A compass and scale image titled NGC 1546 HST WFC3/UVIS, against the black background of space. Near top left is a color key with filters: blue (F438W), green (F555W), red (F814W). At center is a Hubble image of the nearby galaxy NGC 1546. The galaxy's orientation gives us a good view of dust lanes from slightly above and backlit by the galaxy's core. This dust absorbs light from the core, reddening it and making the dust appear rusty-brown. The core itself glows brightly in a yellowish light indicating an older population of stars. Brilliant-blue regions of active star formation sparkle through the dust. Several background galaxies also are visible, including an edge-on spiral just to the left of NGC 1546. At bottom right are white compass arrows. The arrow pointing to the 10 o'clock position is labeled E for east; the arrow pointing to the 2 o'clock position is labeled N for north. At bottom left is a scale bar labeled 9,700 light-years over 40 arc seconds.
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.04:14:36.54
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.-56:03:38.9
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Dorado
- DistanceDistanceThe 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.50 million light-years
- DimensionsDimensionsThe physical size of the object or the apparent angle it subtends on the sky.Image is 2.7 arcmin across (about 39,000 light-years)
About the Data
- Data DescriptionData 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 HST observations include those from program 17502 D. Thilker (JHU). Image Processing: Joseph DePasquale (STScI)
- InstrumentInstrumentThe science instrument used to produce the data.WFC3/UVIS
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.16 June 2024
- FiltersFiltersThe camera filters that were used in the science observations.F438W, F555W, F814W
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.NGC 1546
- Object DescriptionObject DescriptionThe type of astronomical object.Spiral Galaxy
- Release DateJune 18, 2024
- Science ReleaseNASA Releases Hubble Image Taken in New Pointing Mode
- CreditNASA, ESA, STScI, David Thilker (JHU)
These images are a composite of separate exposures acquired by the WFC3/UVIS instrument on the Hubble Space Telescope. Several filters were used to sample various 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= F438W, Green= F555W, Red= F814W
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
Joseph DePasquale (STScI)