Free Access
Fig. 3.
Sky map of NGC 2180. Stars with J ≤ 15.8, H ≤ 15.1, and Ks ≤ 14.3 mag that are located within 1 degree of the central coordinates are shown. Black circles represent stars within 10 arcmin. Other stars are plotted as blue dots. Red circles illustrate a set of 100 randomly selected field samples with radii equal to 10 arcmin.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.