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Astrophotograph of the Rho Ophiuchi Cloud Complex region. Cloud of gas and dust are illuminated by several bright stars resulting in an implausible colourful region of sky, with patches of yellow, pale blue, black, brown and red.

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https://mediacdn.aus.social/media_attachments/files/117/049/453/532/908/626/original/5cbc8f4c53b91e39.jpg

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  1. Embed this notice
    Anthony Horton (spacelizard@aus.social)'s status on Friday, 14-Aug-2026 07:13:43 JST Anthony Horton Anthony Horton
    in reply to

    Right, this was a challenging image mosaic to process!

    It the Rho Ophiuchi Cloud Complex, near the bright yellow star Antares (upper left) and Crab Globular Cluster, M4 (lower left).

    It's a 4 panel mosaic with a grand total of 8 hours exposure time with the Thirty Millimetre Telescope, taken over two nights from suburban Sydney before the Moon rose. This would definitely benefit from a *lot* more exposure time (and darker skies) but this will do for now. All processing in Siril with SyQon and VeraLux scripts. It took a bit of trial and error to iron out the residual sky background gradients but I got most of the way there in the end. It's oriented north right, east left because it fits on computer monitors better that way.

    Full resolution version here: https://drhotdog.smugmug.com/Nature/Seeing-Stars/i-hdHKKGF/A

    #Seestar #SeestarS30Pro #TMMT #ThirtyMillimetreTelescope #Astrophotography #Siril #SyQon #VeraLux

    In conversation about 2 months ago from aus.social permalink
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