what year was halley's comet

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what year was halley's comet	0.1	0.1	7557	57	28
what	0.75	0.5	3824	39	4
year	1.47	0.6	9561	26	4
was	1.66	0.5	3068	11	3
halley's	1.29	0.5	7350	17	8
comet	0.87	0.5	3479	35	5

Keyword	CPC	PCC	Volume	Score
what year was halley's comet	0.58	1	3273	16
what year was halley's comet discovered	0.28	0.5	3825	56
what year was halley's comet last seen	1.1	0.4	2711	75
when was halley's comet discovered	1.7	0.4	804	92
the comet known as halley's comet history	1.6	0.7	1016	28
what is the halley's comet	1.68	0.6	7394	37
halley's comet discovery date	1.74	0.9	1797	96
the comet known as halley's history	1.13	0.3	1469	48
halley's comet in 1986	0.06	0.6	9671	12
who named halley's comet	1.32	0.4	852	69
did halley's comet appear in 1910	1.71	0.1	9369	24