C/2025 Y1 ( ATLAS )

Japanese version
Home page
 Updated on April 29, 2026

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* Profile

Discovery Date December 26, 2025
Magnitude 18.7 mag
Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program

* Pictures

* Orbital Elements

Perturbed ephemeris below is based on elements from MPEC 2026-HH0.

Epoch (TT/JD) T (TT/JD)         Peri.     Node      Incl.   
2461680.50000 2461692.4277706 124.28472 166.54632  14.55559 

    e             q             a      Epoch (TT)
1.0002450     2.6021094               2027/10/02.00

* Finding Charts

* Magnitudes Graph

        m1 = 5.5 + 5 log d + 10.0 log r

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The orbital elements are calculated using the Minor Planet & Comet Ephemeris Service.
The charts are made with StellaNavigator Ver.11 (AstroArts).
The magnitudes graphs are made with Comet for Windows.

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.