Hemisphere:  Southern  ·  Constellation: Monoceros (Mon)

Image of the day 04/02/2021

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    The Red Rectangle, 


            Adam Block
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    Technical card

    Imaging telescopes or lenses: Schulman 0.8m Reflector RCOS

    Imaging cameras: Kodak 16803 SBIG STX

    Guiding cameras: Kodak 16803 SBIG STX

    Software: PhotoShop Creative Cloud Adobe  ·  CCDStack2 Stan Moore

    Filters: Broadband RGB AstroDon Gen II

    Dates:Dec. 15, 2013

    Frames: 51x300"

    Integration: 4.2 hours

    Avg. Moon age: 13.05 days

    Avg. Moon phase: 96.71%

    Astrometry.net job: 4335261

    RA center: 6h 19' 57"

    DEC center: -10° 38' 9"

    Pixel scale: 0.326 arcsec/pixel

    Orientation: -11.955 degrees

    Field radius: 0.114 degrees

    Resolution: 2003x1518

    Locations: Mount Lemmon SkyCenter, Tucson, AZ, United States


    This is the Red Rectangle- made famous by an HST image. The picture captured here, at the time, was the highest resolution ground-based image of it in full (RGB) color! The HST picture is wonderful..but the filters are not broadband and the colors are mapped. So... no one (in the astrophotography community) knew what color(s) it actually was! (Spoiler... it is mostly red. lol )

    Soon after, many aficionados began to try to capture this as well (not but a few weeks later the Chart32 team in Chile with the same size telescope were inspired to do so.). I think this image still stands the test of time.

    This object also represents a high density DIQ example. Consider the ratio of the amount of time spent on the number of pixels the object subtends. Throughout my career I have never shied away from these- although it is hard to do with so many much larger/brighter baubles in the sky.

    If you like these kinds of images, please like an follow me!


    Sky plot

    Sky plot


    The Red Rectangle, 


            Adam Block