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The following is a list of particularly notable actual or hypothetical stars that have their own articles in Wikipedia, but are not included in the lists above. BPM 37093 — a diamond star Cygnus X-1 — X-ray source
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
The following well-known stars are listed for the purpose of comparison. Antares (α Scorpii A) 680 [65] AD Fourteenth brightest star in the night sky. [66] Widely recognised as being among the largest known stars. [19] Betelgeuse (α Orionis) 640, [67] 764 +116 −62, [68] 782 ± 55 [69] AD & SEIS Tenth brightest star in the night sky. [66]
Size (left) and distance (right) of a few well-known galaxies put to scale. The following is a list of notable galaxies.. There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order of 100,000 in the Local Supercluster, and an estimated 100 billion in all of the observable universe.
A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek galaxias, literally 'milky', a reference to the Milky Way galaxy that contains the Solar System.
This is a list of largest galaxies known, sorted by order of increasing major axis diameters. The unit of measurement used is the light-year (approximately 9.46 × 10 12 kilometers). Overview
Alicante 1 looks like a chain of dim stars with two relatively bright accompanying stars known as TYC 3725-498-1 and TYC 3725-866-1 (source: Wikisky) Aller — R.M. Aller (double stars) (Ramón María Aller Ulloa?) ALS — UBV beta database for Case-Hamburg Northern and Southern Luminous Stars [5]
The Bright Star Catalogue, which is a star catalogue listing all stars of apparent magnitude 6.5 or brighter, or roughly every star visible to the naked eye from Earth, contains 9,096 stars. [1] The most voluminous modern catalogues list on the order of a billion stars, out of an estimated total of 200 to 400 billion in the Milky Way .