Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  Maia nebula  ·  NGC 1432  ·  The star Merope (23Tau)  ·  The star ηTau

Image of the day 01/18/2017

    M 45 Pleiades or Seven Sister, 



    
        

            Lluis Romero Ventura
    M 45 Pleiades or Seven Sister
    Powered byPixInsight

    Image of the day 01/18/2017

      M 45 Pleiades or Seven Sister, 



    
        

            Lluis Romero Ventura
      M 45 Pleiades or Seven Sister
      Powered byPixInsight

      Technical card


      Basic astrometry details

      Astrometry.net job: 1406432

      RA center: 3h 46' 33"

      DEC center: +24° 8' 24"

      Pixel scale: 1.821 arcsec/pixel

      Orientation: -89.197 degrees

      Field radius: 0.437 degrees


      Resolution: 1440x956

      Locations: LUIS ROMERO VENTURA, Àger, Lleida, Spain

      Description

      In astronomy, the Pleiades or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. The celestial entity has several meanings in different cultures and traditions.

      The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternative name Maia Nebula after the star Maia), but is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

      Source: Wikipedia

      About this Image:

      Location: Àger-Lleida-Spain
      Dates: 18-19-23 December 2016
      Avergage SQM: 21.4-21.6
      Telescope: GSO RC14” Truss f8
      Camera: Moravian G3-11000 classe 2
      Focuser: Feather Touch 3” Kit boss II
      Flattener: TSFlattener 2.5”
      Filters: Astrodon LRGB Gen2 I-Series True-Balance
      Exposures: L:18x300 sec bin1 // R:G:B: 10:10:10 sec x 300 sec bin1 & R:G:B: 15:15:15 seg x 600 sec bin1
      Total Exposure: 11.5 hours
      Processing: Pixinsight y Photoshop CC 2017

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      M 45 Pleiades or Seven Sister, 



    
        

            Lluis Romero Ventura