NGC 6822 (also known as Barnard's Galaxy, IC 4895, or Caldwell 57) is a barred irregular galaxy approximately 1.6 million light-years away in the constellation Sagittarius. Part of the Local Group of galaxies, it was discovered by E. E. Barnard in 1884, with a six-inch refractor telescope.

2023年8月2日 · A new stunning image from the James Webb Space Telescope shows the Milky Way's neighbor NGC 6822 glowing green and gold and punctuated by bright red and blue stars, revealing its lack of metal.

2023年9月27日 · This image shows the irregular galaxy NGC 6822, as observed by the Near-InfraRed Camera (NIRCam) mounted on the NASA/ESA/CSA James Webb Space Telescope. NIRCam probes the near-infrared, which in this case makes it suitable for observing the densely packed star field.

2023年7月31日 · This scaled image shows the irregular galaxy NGC 6822, which was observed by the Near-InfraRed Camera (NIRCam) mounted on the NASA/ESA/CSA James Webb Space Telescope.

2023年7月31日 · This image shows the irregular galaxy NGC 6822, as observed by the Mid-InfraRed Instrument (MIRI) mounted on the NASA/ESA/CSA James Webb Space Telescope. MIRI probes the mid-infrared, which in this case makes it perfectly suited to observe the dense regions of gas that suffuse this galaxy.

2024年9月13日 · More than 2 million light-years away, still within our corner of the cosmos, lies the irregular dwarf galaxy Caldwell 57 (C57). Also cataloged as NGC 6822, this galaxy was …

A dwarf irregular galaxy similar to the Small Magellanic Cloud, NGC 6822 is about 7,000 light-years across. Brighter foreground stars in our Milky Way have a spiky appearance.

NGC 6822-WR 12 is a WN-type Wolf-Rayet star located in the galaxy NGC 6822, about 1.54 million light years away [4] in the constellation of Sagittarius. NGC 6822-WR 12 was the first Wolf-Rayet star to be discovered in the galaxy, [5] and is one of only four known in the galaxy. [6]

2023年9月28日 · Webb’s Near-InfraRed Camera (NIRCam) has captured countless stars with incredible detail in the irregular galaxy NGC 6822. Here “Webb” stands for James Webb Space Telescope (JWST).

2023年11月7日 · This first irregular dwarf galaxy that Euclid observed is called NGC 6822 and is located close by, just 1.6 million light-years from Earth. It is a member of the same galaxy cluster as the Milky Way (called the Local Group), and was discovered in 1884.