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  2. Gaia catalogues - Wikipedia

    en.wikipedia.org/wiki/Gaia_catalogues

    A first version was created in 2013, a more refined version in April 2014. In total, the Attitude Star Catalog contains 8,173,331 entries with information on position, proper motion and magnitude. [4] Starting with Gaia DR2, the Attitude Star Catalog was replaced with a new list generated from the Gaia Main Data Base (MDB), using the same criteria.

  3. Star number - Wikipedia

    en.wikipedia.org/wiki/Star_number

    A star prime is a star number that is prime. The first few star primes (sequence A083577 in the OEIS) are 13, 37, 73, 181, 337, 433, 541, 661, 937. A superstar prime is a star prime whose prime index is also a star number. The first two such numbers are 661 and 1750255921. A reverse superstar prime is a star number whose index is a star prime ...

  4. List of most luminous stars - Wikipedia

    en.wikipedia.org/wiki/List_of_most_luminous_stars

    A near-infrared image of the R136 cluster. This cluster contains many of the most luminous known stars, including R136a1.Credit: ESO/VLT. This is a list of stars arranged by their absolute magnitude – their intrinsic stellar luminosity.

  5. Flamsteed designation - Wikipedia

    en.wikipedia.org/wiki/Flamsteed_designation

    Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek and Roman letters. Each star is assigned a number and the Latin genitive of the constellation it lies in (see 88 modern constellations for a list of constellations and the genitive forms of their names). Flamsteed designations were ...

  6. ESO 325-4 - Wikipedia

    en.wikipedia.org/wiki/ESO_325-4

    eso 325-g004, 2masx j13433318-3810336 [1] ESO 325-4 ( ESO 325-G 004 ) is an elliptical galaxy located approximately 416 million light-years away in the constellation Centaurus . [ 1 ]

  7. List of largest galaxies - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_galaxies

    Listed below are galaxies with diameters greater than 700,000 light-years. This list uses the mean cosmological parameters of the Lambda-CDM model based on results from the 2015 Planck collaboration, where H 0 = 67.74 km/s/Mpc, Ω Λ = 0.6911, and Ω m = 0.3089. [3]

  8. List of stars in Serpens - Wikipedia

    en.wikipedia.org/wiki/List_of_stars_in_Serpens

    • Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] See also [ edit ]

  9. Horologium (constellation) - Wikipedia

    en.wikipedia.org/wiki/Horologium_(constellation)

    At magnitude 4.93, Delta Horologii is the second-brightest star in the constellation, [17] and forms a wide optical double with Alpha. [18] Delta itself is a true binary system composed of a white main sequence star of spectral type A5V that is 1.41 times as massive as the Sun with a magnitude of 5.15 and its fainter companion of magnitude 7.29 ...