All articles tagged with #canis major
NASA/ESA's Hubble Space Telescope captured a striking image of the faint dwarf irregular galaxy ESO 490-017, about 23 million light-years away in Canis Major and roughly 12,000 light-years across. The portrait reveals a swarm of stars against a hazy backdrop with foreground diffraction spikes and background galaxies, part of a program piecing together how galaxies move and the cosmic flow of the universe.
Space.com reports astrophotographer Ronald Brecher captured the 30-light-year emission nebula NGC 2359, known as Thor’s Helmet, about 15,000 light-years from Earth in Canis Major. The helmet-like bubble is sculpted by winds from a central Wolf–Rayet star; Brecher photographed it from Guelph, Canada using a Celestron 14-inch EDGE HD telescope with a monochrome camera and narrowband filters, accumulating more than 8 hours across 124 exposures and stacking the data with PixInsight to reveal the nebula’s blue glow and wing-like structures.