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Comet  3I/ATLAS (= C/2025 N1 (ATLAS))

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

http://cara.uai.it

Discovery:  CBET 5578 : 20250702 : COMET C/2025 N1 (ATLAS) = 3I/ATLAS

    A new NEOCP candidate A11pl3Z was discovered by ATLAS Chile (W68) in four 30-second survey images taken on July 1 UT. Immediate follow-up and precovery observations by Q.-Z. Ye (I41) and S. Deen (W68, M22), including data from June, revealed a highly eccentric, hyperbolic orbit (e ~ 6). There are tentative reports of cometary activity from X09 (S. Deen), G37 (Q.-Z. Ye) and T14 (R. Weryk) with a marginal coma and a short 3" tail at a position angle 280 deg. Additional observations are strongly encouraged to better constrain the object's orbit and nature. Any additional observations received by the MPC will be officially published in the MPC's standard `Orbits and

Observations of Comets` publication.

MPEC 2025-N12 : 3I/ATLAS = C/2025 N1 (ATLAS)