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The Local Group is the galaxy group that includes the Milky Way, where Earth is located. It has a total diameter of roughly 3 megaparsecs (10 million light-years ; 9 × 10 19 kilometres ), [ 1 ] and a total mass of the order of 2 × 10 12 solar masses (4 × 10 42 kg). [ 2 ]
The Local Bubble, or Local Cavity, [3] is a relative cavity in the interstellar medium (ISM) of the Orion Arm in the Milky Way.It contains the closest of celestial neighbours and among others, the Local Interstellar Cloud (which contains the Solar System), the neighbouring G-Cloud, the Ursa Major moving group (the closest stellar moving group) and the Hyades (the nearest open cluster).
The Local Supercluster (LSC or LS), or Virgo Supercluster is a formerly defined supercluster containing the Virgo Cluster and Local Group, which itself contains the Milky Way and Andromeda galaxies, as well as others. At least 100 galaxy groups and clusters are located within its diameter of 33 megaparsecs (110 million light-years).
Local Supercluster, Laniakea, Laniakea Supercluster, Laniakea Complex The Laniakea Supercluster ( / ˌ l ɑː n i . ə ˈ k eɪ . ə / ; Hawaiian for "open skies" or "immense heaven") [ 2 ] or the Local Supercluster ( LSC or LS ) is the galaxy supercluster that is home to the Milky Way and approximately 100,000 other nearby galaxies.
The Local Interstellar Cloud is, in turn, contained inside the Local Bubble, a cavity in the interstellar medium about 300 light-years (92.0 pc) across. It contains Ursa Major and the Hyades star cluster, among others. The Local Bubble also contains the neighboring G-Cloud, which contains the stars Alpha Centauri and Altair.
A map of the superclusters and voids nearest to Earth. ... The Laniakea Supercluster is the supercluster that contains the Virgo Cluster, Local Group, ...
In 1999, cluster RDCS J0849+4452 (RX J0849+4452, RXJ0848.9+4452) was found at z=1.261 [43] [46] In 1995 and 2001, the cluster around 3C 294 was announced, at z=1.786 [65] In 1992, observations of the field of cluster Cl 0939+4713 found what appears to be a background cluster near a quasar, also in the background. The quasar was measured at z=2. ...
Largest Galaxy in the Local Group (The Milky Way is the second largest), with at least 19 satellite galaxies. ... Local Group [NB 3] Contains cluster of young hot ...