... Credit Copyright: Pete Lawrence ( Digital-Astronomy ) Explanation: In order top to bottom this celestial snapshot features Comet ISON, planet Mars, and Regulus, alpha star of the constellation Leo, in the same frame. ... Just above Regulus, the very faint smudge of light is actually the Leo I dwarf galaxy, 800,000 light-years away and almost lost in the glare of the bluish hued bright star . Comet ISON is expected to grow brighter, though. ... Bright Star Regulus near the Leo I Dwarf Galaxy . ...