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nobody

16 Ian 2025 20:53



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Cometa cu pricina (C/2023 A3 (Tsuchinshan–ATLAS)) nu prea are carbon.

We report a spectroscopic observation of comet C/2023 A3 using an 80 mm apochromatic refractor equipped with a custom-built spectrometer with a resolution of R ∼ 2500 on the night of 2024 October 4. Sodium D lines were detected prominently, while no other emission lines, particularly carbon-bearing species, were observed, which suggests that comet C/2023 A3 may be carbon-depleted.

The absence of carbon emissions aligns with the weak ion tail of C/2023 A3, as illustrated in panel (a) of Figure 1. To capture the ion tail, we used the SkyRover 70SA Telescope and Canon 6D2 DSLR camera, enhancing the B-channel brightness significantly, resulting in the faint blue ion tail observed.

Deci lipseste lipsa de lipsa.