Bs 6744

[Llanque Mazurek]

NGC6744 (also known as Caldwell 101 or the Pavo Galaxy[3]) is an intermediate spiral galaxy about 30 million light-years away[2] in the constellation Pavo (Peacock). It is considered as a Milky Way mimic in the immediate vicinity, displaying flocculent (fluffy) arms and an elongated core. It also has at least one distorted companion galaxy (NGC 6744A) superficially similar to one of the Magellanic Clouds.[4] It was discovered from Parramatta in Australia by Scottish astronomer James Dunlop on 30 June 1826.[5]

Bake Crafters Sandwich, Maple Waffle, WG, Chicken Sausage & Cheese, IW; must be whole grain rich and provide 1.0 ounce grain equivalent and 1.25 ounces of meat or meat alternate. Portion to provide at least 175 calories, with no more than 12 grams of fat. Must contain less than 530 milligrams of sodium. Acceptable brand: Bake Crafters 6744.

This image of spiral galaxy NGC 6744 from NASA's Wide-field Infrared Survey Explorer (WISE) is a mosaic of frames covering an area three full moons tall and three full moons wide (1.56 by 1.56 degrees). It is located in a constellation in the southern sky, Pavo, which is Latin for peacock.

There are relatively few large spiral galaxies in the local universe (within about 40 million light-years of our Local Group of galaxies). NGC 6744 is about 30 million light-years away and, compared to other local galaxies, is very similar to our Milky Way galaxy. In fact, if there are observers somewhere in this sibling galaxy looking back at the Milky Way, they might see a very similar image.

The galaxy's disk is about 175,000 light-years across, which is larger than the Milky Way's disk, making NGC 6744 kind of like the Milky Way's big brother. It has an elongated, or barred, core and distinct spiral arms. The spiral arms of the disk are the sites of star formation within the galaxy and are very dusty. Dust and star formation go together hand-in-hand. Dust in star-forming regions is relatively warm (temperatures of hundreds of Kelvins) and shows up as green and red in this infrared image from WISE. Throughout the disk and core are many, many older generations of stars whose temperatures are in the thousands of Kelvins. These stars are color-coded blue and cyan in this image.

This image was made from observations by all four infrared detectors aboard WISE. Blue and cyan represent infrared light at wavelengths of 3.4 and 4.6 microns, which is primarily light from stars. Green and red represent light at 12 and 22 microns, which is primarily emission from warm dust.

JPL manages WISE for NASA's Science Mission Directorate, Washington. The principal investigator, Edward Wright, is at UCLA. The mission was competitively selected under NASA's Explorers Program managed by the Goddard Space Flight Center, Greenbelt, Md. The science instrument was built by the Space Dynamics Laboratory, Logan, Utah, and the spacecraft was built by Ball Aerospace & Technologies Corp., Boulder, Colo. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA.

One difference between NGC 6744 and the Milky Way is their size. While our galaxy is roughly 100 000 light-years across, the galaxy pictured here extends to almost twice this diameter. Nevertheless, NGC 6744 gives us a tantalising sense of how a distant observer might see our own galactic home.

With professional telescopes such as the MPG/ESO 2.2-metre telescope at La Silla, which captured this image, NGC 6744 can be seen in all its glory. The dusty spiral arms are home to many glowing star-forming regions (seen in red) and give this Milky Way look-alike its striking spiral form.

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The image was captured by the Euclid space telescope. NGC 6744 stands out as a prime example of the galaxies currently forming the majority of stars in the nearby universe, making it an ideal subject for study with the Euclid mission.

The spiral arms of NGC 6744 are well-defined and extend outward, wrapping around the central bar. Additionally, NGC 6744 has a smaller companion galaxy, NGC 6744A, which is interacting with it, adding to the complexity and interest of this distant system.

The galaxies typically consist of a flat, rotating disk containing stars, gas, and dust, along with a central concentration of stars known as the bulge. This bulge is often surrounded by a halo of older stars.

Spiral galaxies are classified into different types based on the tightness of their spirals and the size of their central bulge, with classifications ranging from tightly wound arms in Sa galaxies to more loosely wound arms in Sc galaxies. The Milky Way, our home galaxy, is a prime example of a spiral galaxy.

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