Image Details
Caption: Figure 11.
HIP 11569 = WDS 02291+6724 = ι Cas. The top row is at λ = 0.85 μm, and the bottom is at 1.105 μm. All images are displayed on a log scale. From left to right, increasing magnification shows Aa, Ab and B, and then finally the two components of C. Because Cb is an M star, it pops out over the other F and K stars in the 1.105 μm row.
© 2026. The Author(s). Published by the American Astronomical Society.