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Galactic Dust
Reddening and Extinction |
You can specify coordinates by selecting a position on the above
all-sky map, a MONTAGE-generated mosaic of the individual
IRAS 100 micron images created by Schlegel et al.
This service gives the Galactic dust reddening for a line of sight,
returning a reddening map, the corresponding 100 micron intensity,
and dust temperature, along with statistics for each. The total Galactic
visual extinction is estimated and, in Single Location mode, extinctions
at multiple wavelengths are estimated. The reddening estimates are
from Schlegel, Finkbeiner & Davis (1998), who combined results
of IRAS and COBE/DIRBE. Newer estimates from Schlafly and Finkbeiner (2011) are now provided alongside those of Schlegel, Finkbeiner & Davis. Read more on the science background,
technique and cautionary notes here:
Background
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See this link for Help.
This service can also be accessed by an
HTTP program interface
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NOTE: This tool gives total extinction through the galaxy so is mostly for
external galaxies. 3D maps of extinction within the Milky Way are an active
area of research.
Single Location
Upload Table
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