Comet observations table

COMET OBSERVATIONS

Comet/Object	Begin		End		Observer	Observatory	Configuration

171P/Spahr

Orbital period : 6.70 years

NASA/JPL elements
IAU/MPC elements

Magnitude and Afrho plots

Num	Date [TU]	Julian day -2400000	Comet/Object Name	r (/Sun) [AU]	d (/Earth) [AU]	Pict	Spec	Coma Total mag (m1)	Nuclear mag (m2)	Coma diameter [']	Coma conden sation	Tail length [°]	Tail position angle [°]	Afrho [cm]	Instr diameter [mm]	Instr	m1 aperture radius [']	m2 aperture radius ["]	Obs MPC code	Who

20451	2019 01 24.7	58509.26772	171P/Spahr	1.775	1.030	Pict	-	-	17.8	-	-	-	-	-	280	T	-	10.8	A77	fkugel
20347	2019 01 07.8	58492.33831	171P/Spahr	1.773	0.919	Pict	-	-	18.1	-	-	-	-	-	410	L	-	5.6	A77	jnicolas
20336	2019 01 06.9	58491.45946	171P/Spahr	1.774	0.914	Pict	-	-	17.2	-	-	-	-	-	200	L	-	6.6	L27	jfsoulier
20286	2018 12 31.7	58485.28086	171P/Spahr	1.777	0.888	-	-	-	16.5	-	-	-	-	-	280	T	-	10.8	A77	fkugel
20171	2018 12 14.3	58467.81577	171P/Spahr	1.794	0.858	Pict	-	-	17.2	-	-	-	-	-	400	Y	-	6.7	W96	tnoel
20126	2018 12 07.3	58460.81045	171P/Spahr	1.805	0.864	Pict	-	-	16.8	-	-	-	-	-	400	Y	-	6.7	W96	tnoel
20108	2018 12 03.3	58456.80836	171P/Spahr	1.813	0.873	Pict	-	-	16.7	-	-	-	-	-	400	Y	-	6.7	W96	jgbosch
20044	2018 11 19.3	58442.83433	171P/Spahr	1.843	0.930	Pict	-	-	17.3	-	-	-	-	-	400	Y	-	6.7	W96	jgbosch
19918	2018 10 22.0	58414.55257	171P/Spahr	1.927	1.146	Pict	-	-	18.2	-	-	-	-	-	300	L	-	6.5	C10	jfsoulier
05428	2011 12 26.7	55923.295	171P/Spahr	2.093	1.872	Pict	-	-	20	-	-	-	-	-	254	L	-	8	C10	jfsoulier