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Contains:  IC 4970, IC 4981, IC4970, IC4981, NGC 6872, NGC 6876, NGC 6877, NGC 6880, NGC6872, NGC6876, NGC6877, NGC6880

Image of the day 09/26/2020

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    The giant interacting galaxies NGC 6872/IC 4970, 


            Nicolas ROLLAND
    Powered byPixInsight

    The giant interacting galaxies NGC 6872/IC 4970

    Acquisition type: Electronically-Assisted Astronomy (EAA)

    Imaging telescopes or lenses: PlaneWave Instruments CDK 17"

    Imaging cameras: SBIG STXL-11002

    Mounts: Paramount ME

    Software: Adobe Photoshop CC  ·  Pixinsight

    Filters: Astrodon LRBG True Balance Gen II 36mm 5nm H-a 36mm 3nm OIII 36mm 5nm SII 36mm

    Dates:Sept. 9, 2020

    Frames: 72x1200"

    Integration: 24.0 hours

    Avg. Moon age: 21.33 days

    Avg. Moon phase: 58.63% job: 3861872

    RA center: 20h 17' 42"

    DEC center: -70° 46' 49"

    Pixel scale: 0.633 arcsec/pixel

    Orientation: 177.440 degrees

    Field radius: 0.199 degrees

    Resolution: 1873x1270

    Data source: Amateur hosting facility

    Remote source: Observatorio El Sauce


    NGC 6872, also known as the Condor Galaxy, is a large barred spiral galaxy of type SB(s)b pec in the constellation Pavo. NGC 6872 is interacting with the lenticular galaxy IC 4970, which is less than one twelfth as large. The galaxy has two elongated arms; from tip to tip, NGC 6872 measures 522,000 light-years (160,000 pc), making it one of the largest known spiral galaxies.

    NGC 6872 is a member of a small cluster of galaxies centred on the giant elleptical galaxy, NGC 6876, which is the brightest galaxy in the image (top right).

    RA: 20h 19m 02.16s
    DEC: -70° 42' 14.5"
    Location: Pavo
    Distance: 210 Mly
    Magnitude: 11.6

    Acquisition September 2020
    Total acquisition time of 25 hours.

    Planewave CDK17
    Technical Details
    Data acquisition: Martin PUGH
    Processing: Nicolas ROLLAND
    Location: El Sauce Observatory, Rio Hurtado, Chile
    L 21 x 1200 sec
    R 15 x 1200 sec
    G 15 x 1200 sec
    B 15 x 1200 sec
    Ha 6 x 1800 sec
    Optics: Planewave 17“ CDK @ F6.8
    Mount: Paramount ME
    CCD: SBIG STXL-11002 (AOX)
    Pre Processing: CCDstack & Pixinsight
    Post Processing: Photoshop CC



    Nicolas ROLLAND
    License: None (All rights reserved)

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    The giant interacting galaxies NGC 6872/IC 4970, 


            Nicolas ROLLAND