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Comet C/2025 K1 (ATLAS) - 18 jan. 2026

Af(rho) data according the CARA-approach is available via request to CARA-coordinator

http://cara.uai.it

Astrometric data for minor planet center (ADES format)

permID |provID     |trkSub  |mode|stn |obsTime                |ra         |dec        |rmsRA|rmsDec|astCat  |mag  |rmsMag|band|photCat |photAp|logSNR|seeing|exp |rmsFit|nStars|notes|remarks

       |C/2025 K1  |        | CCD|B96 |2026-01-18T18:18:56Z   | 15.75811  |+33.63138  |0.57 |0.60  |  ATLAS2|18.7 |0.13  |  Gr|   R|  ATLAS2| 4.3  |1.01  |2.9   |3000|0.36  |   731|K    |

       |C/2025 K1  |        | CCD|B96 |2026-01-18T18:20:06Z   | 15.75816  |+33.63139  |0.36 |0.41  |  ATLAS2|18.3 |0.18  |  Gr|   R|  ATLAS2| 5.6  |0.79  |2.8   | 960|0.37  |   614|K    |

       |C/2025 K1  |        | CCD|B96 |2026-01-18T18:38:56Z   | 15.76011  |+33.62941  |0.41 |0.46  |  ATLAS2|18.3 |0.11  |  Gr|   R|  ATLAS2| 5.6  |1.15  |2.9   | 960|0.37  |   745|K    |

Af(rho) parameter according CARA-approach

Af(rho) [cm] vs. core distance [km] - data obtained from R-filtered CCD-image

ICQ-format - photometry:

ICQ Code:

CometObs format:

C/2025 K1 (ATLAS):