Compass and Scale Image of M31 Center
M31 Nucleus, NGC 224, Andromeda Galaxy,
About 2.5 million light-years (0.8 megaparsecs)
This image was created from Hubble data from proposal 10571: T. Lauer (NOAO), J. Kormendy and K. Gebhardt (University of Texas, Austin), R. Bender (Universitats-Sternwarte, Munich), and R. Green (NOAO).
F330W (u) and F435W (B)
This image is a composite of separate exposures acquired by the ACS instrument on HST. Several filters were used to sample broad 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: F330W (u)
Orange: F435W (B)