Hemisphere:  Southern  ·  Constellation: Corvus (Crv)  ·  Contains:  Antennae  ·  NGC 4038  ·  NGC 4039

Image of the day 05/12/2018

    The Antennae Galaxies, 


            Terry Robison
    The Antennae Galaxies
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    The Antennae Galaxies

    Technical card

    Imaging telescopes or lenses: RC Optical Systems RCOS 10" Ritchey-Chrétien

    Imaging cameras: SBIG STL-11000M

    Mounts: AP900GTO Astro Physics

    Guiding cameras: AOL + SBIG Remote Guide Head

    Filters: Baader Planetarium H-a  ·  Astrondon Astrodon

    Accessory: FLI CW2-7 Filter wheel 7  ·  SBIG AO-L  ·  SBIG Remote Guide Head

    Dates:May 7, 2018

    Frames: 107x900"

    Integration: 26.8 hours

    Avg. Moon age: 21.62 days

    Avg. Moon phase: 55.60%

    Basic astrometry details

    Astrometry.net job: 3281201

    RA center: 12h 1' 53"

    DEC center: -18° 53' 2"

    Pixel scale: 0.803 arcsec/pixel

    Orientation: 33.579 degrees

    Field radius: 0.374 degrees

    Resolution: 2818x1822

    Data source: Own remote observatory

    Remote source: Non-commercial independent facility


    The Antennae Galaxies are one of the youngest examples of colliding galaxies, as well as one of the nearest pairs of interacting galaxies to Earth. They are located in the constellation of Corus around 45 million light years away.
    NGC 4038 and NGC 4039 were two separate galaxies some 1.2 billion years ago. The larger was a spiral galaxy, NGC 4039. The smaller galaxy was a barred spiral, NGC 4038.

    About 600 million years ago, NGC 4038 and NGC 4039 passed through each other. At some point, they would have resembled the Mice Galaxies. Around 300 million years ago, the Antennae’s stars began to be released from both galaxies. These gravitational interactions have resulted in the long tails forming an antenna shape. Within the tails or streamers, areas of starburst activity exist.

    Perhaps in the future, when our galaxy the Milky Way and the Andromeda galaxies come together, they may look similar to the Antennae during at least one point of their gravitational interaction.

    Exposure Details:
    Lum 41X900
    Red 24X450
    Green 24X450
    Blue 36X450
    Ha 13X1800
    Total time 26.75 hours

    Instruments Used:
    10 Inch RCOS fl 9.1
    Astro Physics AP-900 Mount
    SBIG STL 11000m
    FLI Filter Wheel
    Astrodon Lum, Red, Green, Blue Filters
    Baader Planetarium H-alpha 7nm Narrowband-Filter



      The Antennae Galaxies, 


            Terry Robison
    • Final
      The Antennae Galaxies, 


            Terry Robison


    Description: A bit more work... Brighten tails, enhanced core, background galaxies worked.

    Uploaded: ...

    Sky plot

    Sky plot


    The Antennae Galaxies, 


            Terry Robison