Peculiar Galaxy NGC 5713 - Adam Lundie - Eatons Hill Observatory

Peculiar Galaxy NGC 5713

Peculiar Galaxy NGC 5713 thumbnail
Peculiar Galaxy NGC 5713
NGC 5713 (right) is a peculiar, asymmetric galaxy, interacting with NGC 5719 (left) in the constellation Virgo.

Although classified as a spiral galaxy by most galaxy catalogs, NGC 5713 galaxy is very different from most normal spiral galaxies. While most spiral galaxies either have either two well-defined spiral arms or a filamentary spiral-like structure, this spiral galaxy has only one visible spiral arm in its disk. This makes it a galaxy of the Magellanic type. Gravitational interactions with the nearby spiral galaxy NGC 5719 may be responsible for producing the disturbed, asymmetric structure including the single spiral arm. Source: Wikipedia


  • 71x 240s Luminance
  • 13x 240s Red
  • 12x 240s Green
  • 23x 240s Blue

Total integration 7 hours 56 minutes.


  • Celestron 11" EdgeHD
  • Skywatcher EQ8 Pro mount
  • QSI 683-ws8 Camera @ -15°C
  • Astronomik Luminance, Deep Sky RGB filters
  • Starlight Xpress Lodestar X2 Autoguider
  • Starlight Xpress Active Optics
  • Innovations Foresight On Axis Guider
  • Starlight Instruments Focus Boss II


  • Exposed during 4 nights between 8th May and 22nd May 2019.
  • Orange zone in Brisbane, Australia. (Bortle 7)


  • Planning & camera alignment with Aladin 10
  • Captured with TheSkyX Professional
  • Guiding with PHD2
  • FocusLock live focusing
  • PixInsight: Calibrate, align, stack, noise reduction, background neutralisation, LRGB combination, histogram stretch, curves.