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Comet 49P/AREND-RIGAUX  - 5 march 2025

Astrometry 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

    49P|           |        | CCD|B96 |2025-03-05T18:45:13Z   | 37.19640  | +2.24900  |0.26 |0.30  |   Gaia2|15.3 |0.08  |   R|   Gaia2| 5.6  |1.49  |3.6   | 120|0.31  |   198|     |

    49P|           |        | CCD|B96 |2025-03-05T18:54:38Z   | 37.20070  | +2.25145  |0.23 |0.27  |   Gaia2|15.4 |0.08  |   R|   Gaia2| 5.6  |1.42  |3.3   | 120|0.29  |   208|     |

    49P|           |        | CCD|B96 |2025-03-05T19:04:04Z   | 37.20494  | +2.25393  |0.32 |0.33  |   Gaia2|15.4 |0.07  |   R|   Gaia2| 5.6  |1.39  |3.3   | 120|0.27  |   203|     |

Photometry by use of KOPR-software (ICQ format)

ICQ Code:

 49        2025 03 05.79  k 14.3 AR 40.0L 3A080   0.8       0.8m 57 ICQ XX BRY04I     C 0.80mST0 K6F KPR 0 U9*0.04       1.2s 1.2 ;

CometObs format:

49P/Arend-Rigaux:

2025  Mar.  05.79  UT: m1=14.3 CCD-R, Dia.=0.8', 40.0-cm Newtonian reflector , Tail: 0.8 min. in p.a. 57 deg.(Erik Bryssinck, BRIXIIS Observatory)

Magnitude and Af(rho) plot according KOPR software - blue triangles= Af(rho) and red dots = magnitude vs coma diameter

Af(rho) parameter according CARA-approach

Af(rho) parameter vs. core distance - data obtained from Bessel-R photometric filtered CCD-image