McNaught

Orbital elements

Semi-major axis

-1,696.277 AU

Eccentricity

1.0008

Inclination

103.88°

Perihelion

1.422 AU

Longitude of ascending node

257.86°

Argument of periapsis

66.17°

Epoch · J2000

JD 2455316.52458 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 310.6 LD

0.7982 AU

Orbit quality

Observations used

2,488

Data arc

2.5 years

First observed

27 May 2009

Last observed

26 November 2011

Residual RMS

0.57 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

11.9

Total magnitude M₁ · K₁ 5

11.9

Discovery & classification

Also known as 2009 K5