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Comet

Borisov

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C/2025 V1 (Borisov)

Orbital elements

Semi-major axis
-59.838 AU
Eccentricity
1.0077
Inclination
112.71°
Perihelion
0.463 AU
Longitude of ascending node
91.87°
Argument of periapsis
47.57°
Epoch · J2000
JD 2460996.04290 (perihelion)
Orbit class · HYP
Hyperbolic comet
Earth MOID · 154.3 LD
0.3965 AU

Orbit quality

Observations used
116
Data arc
10 days
First observed
29 October 2025
Last observed
8 November 2025
Residual RMS
0.85 ″
Solution · Otto Matic
7 January 2026

Visual & observation

Absolute magnitude (H)
15.2
Total magnitude M₁ · K₁ 4.5
15.2

Discovery & classification

Also known as 2025 V1

Named

Sources