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Comet

McNaught

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C/2011 Q2 (McNaught)

Orbital elements

Semi-major axis
-18,003.302 AU
Eccentricity
1.0001
Inclination
36.87°
Perihelion
1.35 AU
Longitude of ascending node
287.37°
Argument of periapsis
34.63°
Epoch · J2000
JD 2455946.28849 (perihelion)
Orbit class · HYP
Hyperbolic comet
Earth MOID · 161.7 LD
0.4156 AU

Orbit quality

Observations used
106
Data arc
244 days
First observed
26 August 2011
Last observed
26 April 2012
Residual RMS
0.47 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
4.7
Total magnitude M₁ · K₁ 23.3
4.7

Discovery & classification

Also known as 2011 Q2

Named

Sources