152P/Helin–Lawrence

152P/Helin–Lawrence is a periodic comet in the Solar System.

152P/Helin-Lawrence
Discovery
Discovered byEleanor F. Helin
Kenneth J. Lawrence
Discovery dateMay 17, 1993
Designations
1993 XI; 2001 Y1
Orbital characteristics
EpochMarch 6, 2006
Aphelion5.884 AU
Perihelion3.108 AU
Semi-major axis4.496 AU
Eccentricity0.3087
Orbital period9.534 a
Inclination9.8707°
Last perihelionJanuary 13, 2022[1][2]
July 9, 2012[1]
December 22, 2002
Next perihelion2031-Jul-09[3]

The comet came to perihelion on 9 July 2012,[1] and reached about apparent magnitude 17.[4]

References

  1. Syuichi Nakano (2011-02-06). "152P/Helin-Lawrence (NK 2031)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.
  2. "152P/Helin-Lawrence Orbit". Minor Planet Center. Retrieved 2014-06-18.
  3. "Horizons Batch for 152P/Helin-Lawrence on 2031-Jul-09" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2022-06-22. (JPL#72 Soln.date: 2022-Jun-20)
  4. Seiichi Yoshida (2011-09-03). "152P/Helin-Lawrence (2012)". Seiichi Yoshida's Comet Catalog. Retrieved 2012-02-25.


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