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More recently, in November 2020, over 300 million habitable exoplanets are estimated to exist in the Milky Way Galaxy. When compared to other more distant galaxies in the universe, the Milky Way galaxy has a below average amount of neutrino luminosity making our galaxy a “neutrino desert”. Structure
Galactic coordinate system. Artist's depiction of the Milky Way Galaxy showing the origin and orientation of galactic longitude. The galactic longitude ( l) runs from the Sun upwards in the image through the center of the galaxy. The galactic latitude ( b) is perpendicular to the image (i.e. coming out of the image) and also centered on the Sun.
The Sun's orbital radius is roughly 8,600 parsecs, or slightly over half way to the galactic edge. One orbital period of the Solar System lasts between 225 and 250 million years. Milky Way Galaxy: 30,000 pc 9.26×10 17: 17.97: Our home galaxy, composed of 200 billion to 400 billion stars and filled with the interstellar medium.
1,540 [9] [10] [11] [12] [13] ± 77 [9] L/T eff. Located in the Large Magellanic Cloud . Possibly the largest known star. [9] [10] [14] [11] Theoretical limit of star size (Milky Way) ~ 1,500 [15] or ~1,800 [16] Lower value comes from the rough average radii of the three largest stars studied in the paper.
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters The Laniakea Supercluster ( / ˌ l ɑː n i . ə ˈ k eɪ . ə / ; Hawaiian for "open skies" or "immense heaven") [2] is the galaxy supercluster that is home to the Milky Way and approximately 100,000 other nearby galaxies.
Like our home galaxy, the newly discovered ceers-2112 is a barred spiral galaxy, and it’s now the most distant of its kind ever observed. The bar at the center of the structure is made of stars ...
The Hercules–Corona Borealis Great Wall (HCB) or simply the Great Wall is a galaxy filament that is the largest known structure in the observable universe, measuring approximately 10 billion light-years in length (the observable universe is about 93 billion light-years in diameter).
One of the largest and most massive galaxies in the local universe, it has a large population of globular clusters—about 15,000 compared with the 150–200 orbiting the Milky Way—and a jet of energetic plasma that originates at the core and extends at least 1,500 parsecs (4,900 light-years), traveling at a relativistic speed. It is one of ...
At least 100 galaxy groups and clusters are located within its diameter of 33 megaparsecs (110 million light-years ). The Virgo SC is one of about 10 million superclusters in the observable universe and is in the Pisces–Cetus Supercluster Complex, a galaxy filament .
The Solar System is located in the Milky Way, a barred spiral galaxy with a diameter of about 100,000 light-years containing more than 100 billion stars. The Sun is part of one of the Milky Way's outer spiral arms, known as the Orion–Cygnus Arm or Local Spur.
