152P/Helin–Lawrence

For other comets of the same name, see Comet Helin.

152P/Helin–Lawrence
Discovery
Discovered byEleanor F. Helin
Kenneth J. Lawrence
Discovery sitePalomar Observatory
Discovery date17 May 1993
Designations
P/1993 K2
P/2001 Y1
1993 XI, 1993l
Orbital characteristics
Epoch9 February 2015 (JD 2457062.5)
Observation arc31.71 years
Earliest precovery date21 April 1993
Number of
observations		1,298
Aphelion5.874 AU
Perihelion3.113 AU
Semi-major axis4.493 AU
Eccentricity0.30722
Orbital period9.52 years
Inclination9.868°
91.899°
Argument of
periapsis		163.59°
Mean anomaly97.858°
Last perihelion13 January 2022
Next perihelion9 July 2031
TJupiter2.901
Earth MOID2.099 AU
Jupiter MOID0.338 AU
Physical characteristics
Mean diameter
4.6 km (2.9 mi)
Comet total
magnitude (M1)		12.7

152P/Helin–Lawrence is a Jupiter-family comet with a 9.52-year orbit around the Sun. It is the third comet co-discovered by Eleanor F. Helin and Kenneth J. Lawrence.


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