271P/van Houten–Lemmon

271P/van Houten-Lemmon
Discovery
Discovered by	C. J. van Houten and I. van Houten-Groeneveld
Discovery date	1966
Designations
MPC designation	P/1960 S1; P/2012 TB36
Alternative designations	1961 X
Orbital characteristics
Epoch	2013-11-04
Aphelion	9.726 AU
Perihelion	4.2494 AU
Semi-major axis	6.9878 AU
Eccentricity	0.39187
Orbital period	18.47 yr
Inclination	6.8527°
Last perihelion	2013-Jul-05; 1995-Apr-28
Next perihelion	2032-Mar-22

271P/van Houten–Lemmon (previously P/1960 S1 and P/2012 TB₃₆) is a short-period comet discovered in 1966 by Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld on eight Palomar plates taken by Tom Gehrels between 24 September and 26 October 1960 as a hazy object of 17th magnitude. It was considered lost and designated D/1960 S1 until recovered by the Mount Lemmon Survey on 17 September 2012.

References

"Reports on the Progress of Astronomy: Comets". Quarterly Journal of the Royal Astronomical Society. 8: 274. September 1967. Bibcode:1967QJRAS...8..274.
Roemer, Elizabeth (December 1966). "Comet Notes". Publications of the Astronomical Society of the Pacific. 78 (466): 556. Bibcode:1966PASP...78..555R. doi:10.1086/128418.