Astrosat Picture of the Month #017

The AstroSat Picture of the Month for February 2019 is an Ultraviolet image of the globular cluster NGC 2808, with far-ultraviolet shown in blue and near-ultraviolet in yellow. Stars emitting in both are seen in white. The red and light-blue circles show the locations of two populations of faint red-horizontal branch stars identified using UVIT-AstroSat. […]