Spitzer Survey of Stellar Structure in Galaxies (S4G)
S4G consists of a sample of 2,352 galaxies, which have been mapped with IRAC channels 1 and 2 (3.6 and 4.5 microns).
IRSA hosts the complete S4G project data set, including results from galaxy modeling using ellipse fitting and Galfit,
and Independent Component Analysis to separate stellar and nonstellar emission.
of photometry, model parameters,
measurements from the literature, and a link to the S4G data for each galaxy is also available.
The 2,352 S4G galaxies are represented as overlays in red
on the all-sky ISSA
Use the form below to enter a coordinate or
object name to search for data, or click on
any red region to get a close-up of the area.
all the Spitzer Legacy datasets at IRSA.