File:First Known Interstellar Visitor is an “Oddball” (gemini1710b).tiff

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    Summary

    Description
    English: Gemini South telescope color composite image of ‘Oumuamua (center). This composite was produced by combining 192 images obtained through three visible and two near-infrared filters totaling 1.6 hours of integration on October 27 at the Gemini South telescope. Processing removes the background stars. The field of view represents a patch of sky 5,000 km (~3,100 miles) on a side at the distance of ‘Oumuamua. Visible colors for the image were assigned to each filter as follows: g (398-552 nm) = blue r (562-692 nm) = green i (706-850 nm) = yellow z (830-925 nm) = orange Y (970-1070 nm) = red While assigning visible colors to filtered images is somewhat subjective, the resulting color of ‘Oumuamua is similar to the hue of Saturn’s moon Iapetus in optical light and possibly indicates a similar composition (a combination of minerals, carbon, iron, and organic compounds). Color composite produced by Travis Rector, University of Alaska Anchorage, using Gemini South GMOS data from Meech et. al.
    Date 20 November 2017 (upload date)
    Source First Known Interstellar Visitor is an “Oddball”
    Author Gemini Observatory/AURA/NSF
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    Captions

    Gemini South telescope color composite image of ‘Oumuamua (center). This composite was produced by combining 192 images obtained through three visible and two near-infrared filters totaling 1.

    Items portrayed in this file

    depicts

    1I/ʻOumuamua

    media type

    image/tiff

    height

    500 pixel

    width

    500 pixel

    data size

    312,472 byte

    checksum

    337776de03adae92084ae2435b204adf6eeea429

    determination method or standard: SHA-1

    inception

    20 November 2017

    pHash checksum

    3ff5sx6t7w1pysfpn8gaol5l4gi1q0077eb9xj8odhio8vbuxo

    determination method or standard: JImagehash perceptual hash

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