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      NGC 247
      Autore dello sfondo:
      Michelle Ashford

      26 Nov 2023

      NGC 247

      NGC 247 is a relatively small intermediate spiral galaxy in the southern constellation of Cetus (The Whale). This galaxy lies at a distance of around 11 million light-years from Earth, and is approx. 70,000 light years in diameter.

      It forms part of the Sculptor Group, a loose collection of galaxies that also contains the more famous NGC 253 (otherwise known as the Sculptor Galaxy).

      NGC 247’s nucleus is visible here as a bright, whitish patch, surrounded by a mixture of stars, gas and dust. The dust forms dark patches and filaments that are silhouetted against the background of stars, while the gas has formed into knots known as H II regions (starforming regions), mostly scattered throughout the galaxy’s arms and outer areas.

      NGC 247 has an unusually large void on one side of its spiral disk. This void contains some older, redder stars but no younger, bluer stars.

      Processed as LRGB - incorporating L & Ha to create Superluminance file

      Dataset da cui è stata elaborata l'immagine

      NGC 247

      17 credit

      Apri
      Telescope Live
      CHI-1-CCD
      • Tipo di obiettivo
        ............................................................................................................................
        Galaxy
      • Fotocamera
        ............................................................................................................................
        FLI ProLine PL9000
      • Coordinate dell'obiettivo
        ............................................................................................................................
        RA 11.7856 Dec -20.7604
      • Emisfero
        ............................................................................................................................
        Southern
      • Posizione del telescopio
        ............................................................................................................................
        Chile
      • Evento transitorio
        ............................................................................................................................
        No
      • Osservato il
        ............................................................................................................................
        14 Aug 2020 - 19 Nov 2022
      Filtro
      Exp. media (s)
      Esposizione totale
      Sottoframe
      Luminance6395h30m31
      Red5614h50m31
      Green6005h30
      Blue6205h10m30
      Halpha5804h50m30

      NGC 247