Astronomical Objects Canberra, Australia



NGC 6822 Caldwell 57, Barnard's Galaxy [detail, Hubble 1925 l (Bubble Nebula), ll, & lll (Ring Nebula)]
Notes: Date: 2023-07-23 to 2023-17-09 Time (AEST): 00h51m56s Total Exposure Time: 9h 50m Sub-frames: 59 x 600s Equipment: EdgeHD 925, ASI294MC Pro, Skywatcher AZ-EQ6 Pro A Rough Guide to This Object... Type: Emission Nebula (H II region) Size: 379 light-years (Bubble Nebula), 419 light-years (Ring Nebula) Apparent size: 48" x 32" (Bubble Nebula), 53" (Ring Nebula) Distance: 1,630,000 light-years Apparent magnitude: 15 (Bubble Nebula), 14.5 (Ring Nebula) Constellation: Sagittarius Notes: References: https://en.wikipedia.org/wiki/NGC_6822 https://en.wikipedia.org/wiki/Bubble_Nebula_(NGC_6822) https://en.wikipedia.org/wiki/Ring_Nebula_(NGC_6822)