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Messier 74 (also known as NGC 628 and Phantom Galaxy) is a large spiral galaxy in the equatorial constellation Pisces. [ a ] It is about 32 million light-years away from Earth. [ 6 ] The galaxy contains two clearly defined spiral arms and is therefore used as an archetypal example of a grand design spiral galaxy . [ 7 ]
The face-on spiral galaxy M74 (NGC 628) is the brightest galaxy within the group. Other members include the peculiar spiral galaxy NGC 660 and several smaller irregular galaxies . [ 1 ] [ 2 ] [ 3 ] The M74 Group is one of many galaxy groups that lie within the Virgo Supercluster .
For example, Messier 1 is a supernova remnant, known as the Crab Nebula, and the great spiral Andromeda Galaxy is M31. Further inclusions followed; the first addition came from Nicolas Camille Flammarion in 1921, who added Messier 104 after finding Messier's side note in his 1781 edition exemplar of the catalogue.
The galaxy experiences an infall of gas at the rate of two to three solar masses per year, most of which may be accreted onto the core region. [56] The extended stellar envelope of this galaxy reaches a radius of about 150 kiloparsecs (490,000 light-years), [7] compared with about 100 kiloparsecs (330,000 light-years) for the Milky Way. [57]
The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.
The central supermassive black hole is calculated to have a mass of about 8.4 × 10 6 M ☉. [9] The interstellar medium of Messier 64 consists of two counter-rotating disks that are approximately equal in mass. [19] The inner disk contains the prominent dust lanes of the galaxy. The stellar population of the galaxy exhibits no measurable ...
Surfer Alo Slebir, 24, rode a gargantuan wave estimated to be 108 feet high “It’s the fastest I’ve ever traveled on a surfboard,” Slebir tells PEOPLE.
The Triangulum Galaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum.It is catalogued as Messier 33 or NGC 598.With the D 25 isophotal diameter of 18.74 kiloparsecs (61,100 light-years), the Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Andromeda Galaxy and the Milky Way.