Physical activity of the selected nearly isotropic comets with perihelia at large heliocentric distance

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Table 1

Orbital parameters of the observed comets.

	e^a	(au⁻¹ )	q^c (au)	i^d (^∘)	T_p^e	Classification^f
/2005 L3 (McNaught)	0.999	0.000061	5.594	139.4	2008 Jan 16.3	Comet, new
C/2005 S4 (McNaught)	0.999	0.000408	5.850	107.9	2007 Jul 18.6	Comet
C/2006 S3 (LONEOS)	1.000	0.000008	5.132	166.0	2012 Apr 13.9	HC, new
C/2008 FK75 (Lemmon-Siding Spring)	1.003	0.000026	4.511	61.2	2010 Sep 29.2	HC, new
C/2008 S3 (Boattini)	1.000	0.000020	8.018	162.7	2011 Jun 07.0	HC, new
C/2009 S3 (Lemmon)	1.001	0.000431	6.474	60.4	2011 Dec 12.4	HC
C/2009 F4 (McNaught)	1.000	0.000046	5.465	79.4	2011 Dec 31.5	HC, new
C/2010 S1 (LINEAR)	1.003	0.000023	5.899	125.3	2013 May 20.0	HC, new
C/2008 U3 (Boattini)	1.003	0.000079	8.445	55.5	2019 Dec 26.6	HC, new
C/2012 A1 (PanSTARRS)	1.001	0.000084	7.604	120.9	2013 Dec 03.8	HC, new
C/2012 K8 (Lemmon)	1.000	0.000038	6.464	106.1	2014 Aug 19.4	HC, new
C/2013 C2 (Tenagra)	0.431	0.062859	9.132	21.3	2015 Aug 28.0	Chiron-type
C/2013 F2 (Catalina)	0.999	0.000784	6.218	61.7	2013 Apr 19.0	Comet
C/2013 V4 (Catalina)	1.003	0.000083	5.185	67.8	2015 Oct 07.5	HC, new

Notes. ^(a) Eccentricity, ^(b) reciprocal original semimajor axis, ^(c) perihelion distance, ^(d) orbital inclination, ^(e) time of theperihelion passage, ^(f) classification: HC – hyperbolic comets; new – dynamically new (); comet – orbit not matching any defined class.

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