Captured as it blazes through the inner Solar System, its vivid blue ion tail and green coma reveal the chemistry of a frozen wanderer awakening under sunlight.
Imaging details:
Telescope: Star Instruments RC10C
Camera: QSI 660 WSG8
Filters: Astrodon LRGB
Mount: 10Micron GM2000
Location: Roboscope, Fregenal de la Sierra, Spain
Processing: PixInsight + Photoshop
About the comet:
The blue tail glows from ionized carbon monoxide (CO⁺) swept away by the solar wind, while the green coma comes from diatomic carbon (C₂) molecules fluorescing in sunlight.
Comet Lemmon originates from the Oort Cloud, a vast sphere of icy remnants left over from the Solar System’s formation.
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by kbarth001