when did edmond halley discover the comet

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did edmond halley discover the comet	1.66	0.7	4752	13	41
when	1.22	0.3	7870	27	4
did	1.52	0.2	4307	5	3
edmond	0.35	0.4	3852	51	6
halley	0.95	0.6	807	3	6
discover	1.18	0.5	3503	30	8
the	0.54	0.2	9513	50	3
comet	1.54	0.5	6524	74	5

Keyword	CPC	PCC	Volume	Score
when did edmond halley discover the comet	0.7	0.1	8039	28
when did edmund halley discover the comet	1.54	0.9	470	66
the comet known as halley's comet discovery	0.53	0.6	9702	18
who discovered halley's comet	1.39	0.4	3460	36
halley's comet discovery date	0.04	0.9	4955	20
who discovered halley's comet in 1682	0.48	0.9	2365	15
the comet known as halley's discovery	1.08	0.4	4946	67
the comet known as halley's comet history	0.69	0.5	1153	67
who found halley's comet	0.22	0.8	8131	84
the comet known as halley's history	1.88	0.4	507	1
when was halley's comet	1.54	0.8	2121	46
what years did halley's comet appear	1.88	0.5	3100	87
the earliest record of halley's comet	0.88	0.7	3857	75
history of halley's comet	0.54	1	4856	99
halley's comet dates in history	0.98	0.8	8801	84
halley's comet historical dates	0.5	0.7	5766	32
what years has halley's comet appeared	1.22	0.3	126	100
first record of halley's comet	1.64	0.8	33	27