67p 20211107 rleadbeater

The spectrum of the inner coma to 30 arcsec diameter is dominated by scattered sunlight from the dust. In comparison with this spectrum of 29P however a few percent of the light comes from emission features. By subtracting the scattered sunlight in the spectrum, emission from CN, C2 and NH2 can be picked up. The same emission features can be seen in the spectrum image, further away from the central region where there is less dust.
Robin Leadbeater
Observed

2021 Nov 07 - 23:28
Uploaded

2021 Nov 09 - 20:26
Objects

67P Churyumov-Gerasimenko
Spectrum
Equipment

    ALPY 200 spectrograph
    ATK 314 camera
    Celestron C11 SCT 280mm aperture f5.5

Exposure

5400 sec (9x600s)
Location

Wigton Cumbria
Target name

Comet 67P/Churyumov–Gerasimenko
Title

Comet 67P - a low resolution spectrum