Contains:NGC 4039, Antennae, NGC 4038

Image of the day 05/12/2018

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    The Antennae Galaxies, 




    

        Terry Robison
    The Antennae Galaxies

    The Antennae Galaxies

    Technical card

    Resolution: 2818x1822

    Dates: May 7, 2018

    Frames: 107x900"

    Integration: 26.8 hours

    Avg. Moon age: 21.62 days

    Avg. Moon phase: 55.60%

    Astrometry.net job: 2048914

    RA center: 180.471 degrees

    DEC center: -18.884 degrees

    Pixel scale: 0.803 arcsec/pixel

    Orientation: 33.578 degrees

    Field radius: 0.374 degrees

    Data source: Unknown

    Description

    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

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    trobison
    Terry Robison
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    The Antennae Galaxies, 




    

        Terry Robison