Distance to the galaxy IC 342
N. A. Tikhonov, O. A. Galazutdinova
TL;DR
This study uses Hubble data to measure the distance to galaxy IC 342 via the TRGB method, establishing its proximity to Maffei 1 and suggesting they form a galaxy group.
Contribution
The paper provides a new precise distance measurement to IC 342 using the TRGB method based on Hubble archival images.
Findings
Distance to IC 342 is approximately 3.93 Mpc.
IC 342 is close to Maffei 1, around 4.1 Mpc.
IC 342 and Maffei 1 may form a galaxy group.
Abstract
Based on archival Hubble Space Telescope images, we have performed stellar photometry for a region of the spiral galaxy IC 342 located in the Milky Way zone. On the constructed Hertzsprung-Russell diagram, we have identified the red giant branch and determined the distance modulus for the galaxy by the TRGB (tip of the red giant branch) method, (m - M) = 27.97+/-0.10, which corresponds to D = 3.93+/-0.10 Mpc. The estimated distance puts IC 342 spatially close to the galaxy Maffei 1 (D = 4.1 Mpc) and allows these galaxies to be considered the center of a single group.
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