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A dark galaxy is a hypothesized galaxy with no (or very few) stars. They received their name because they have no visible stars but may be detectable if they contain significant amounts of gas. Astronomers have long theorized the existence of dark galaxies, but there are no confirmed examples to date. [1]
The quasar is near the center of the image; no obvious host galaxy is seen. Near the top of the image is a strongly disturbed and star-forming galaxy. Near the quasar is a blob of gas that is apparently being ionized by the quasar radiation. The pointlike object on the lower right is a foreground star seen by chance in the field of view.
NGC 1052-DF2, an ultra diffuse galaxy. An ultra diffuse galaxy (UDG), or dark galaxy, [1] is an extremely low luminosity galaxy, the first example of which was discovered in the nearby Virgo Cluster by Allan Sandage and Bruno Binggeli in 1984. [a] These galaxies have been studied for many years prior to their renaming in 2015. Their lack of ...
For years, science has assumed galaxies and dark matter go hand in hand. Now, a galaxy has been discovered that's almost completely devoid of it. This galaxy without dark matter is bending the ...
NGC 1052-DF2 is an ultra diffuse galaxy (UDG) identified in a wide-field imaging survey of the NGC 1052 group by the Dragonfly Telephoto Array. [2] It has been proposed that the galaxy contains little or no dark matter, the first such discovery.
The Milky Way is most visible with the naked eye in the late summer, while Earth is positioned with a perfect view of the center of the galaxy. Moonless nights, dark sky parks, more: What to know ...
Most distant (difficult) naked eye object. Closest unbarred spiral galaxy to us and third largest galaxy in the Local Group. 61,100 ly 96 Andromeda XXI [66] dSph [53] 2.802 0.859 −9.9 Local Group: Satellite of Andromeda 97 Tucana Dwarf: dE5 2.87 0.88 [7] −9.16 15.7 [1] Local Group [7] Isolated group member — a 'primordial' galaxy [67] 98 ...
Without gravitational lensing, trying to identify individual stars so far away would be like trying to look at dust on the moon, the Harvard-Smithsonian Center for Astrophysics said in a statement.