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The largest galaxies are called elliptical because they look like big globes of light emitted from a multitude of stars. The most famous elliptical galaxy is M87, which has up to 2.4 trillion stars.
The following is a list of stars with resolved images, that is, stars whose images have been resolved beyond a point source. Aside from the Sun , observed from Earth , stars are exceedingly small in apparent size, requiring the use of special high-resolution equipment and techniques to image.
Some objects originally thought to be deep sky objects and listed in the NGC have been subsequently shown to be ordinary stars, so their inclusion in the catalog is now considered erroneous. [1] This list of stars is based on the 'NGC 2000.0' version of the catalog, which lists the stars in its errata, [ 1 ] supplemented with data on each ...
Webb's First Deep Field is the first full false-color image from the JWST, [12] and the highest-resolution infrared view of the universe yet captured. [11] The image reveals thousands of galaxies in a tiny sliver of the universe, with Webb's sharp near-infrared view bringing out faint structures in extremely distant galaxies, offering the most ...
By measuring the shape and movement of galaxies as far as 10 billion light-years away, astronomers hope to learn more about the dark energy and matter that make up 95% of the universe.
The radii of these objects range over three orders of magnitude, from planetary-mass objects like dwarf planets and some moons to the planets and the Sun. This list does not include small Solar System bodies , but it does include a sample of possible planetary-mass objects whose shapes have yet to be determined.
In 2019, astronomers discovered the young star cluster Price-Whelan 1 using Gaia data. The star cluster has a low metallicity and belongs to the leading arm of the Magellanic Clouds. The existence of this star cluster suggests that the leading arm of the Magellanic Clouds is 90,000 light-years away from the Milky Way—closer than previously ...
Fifth brightest star in the night sky. [66] Altair (α Aquilae) 2.01 × 1.57 [99] Twelfth brightest star in the night sky. Sirius (α Canis Majoris A) 1.713 [100] AD The brightest star in the night sky. Rigil Kentaurus (α Centauri A) 1.2175 [101] AD Third brightest star in the night sky. Sun: 1: The largest object in the Solar System.