who discovered the crab nebula

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
who discovered the crab nebula	1.18	0.5	8136	74	30
who	1.36	0.8	4356	90	3
discovered	0.17	0.9	6389	79	10
the	0.34	0.2	5232	19	3
crab	0.9	0.2	4443	66	4
nebula	1.21	0.4	6971	31	6

Keyword	CPC	PCC	Volume	Score
who discovered the crab nebula	1.59	0.6	3913	2
when was the crab nebula discovered	1.62	0.6	2785	45
when was the crab nebula first seen	1.47	1	3220	13
when was the crab nebula formed	0.15	1	2143	32
how was the crab nebula created	1.29	0.7	6227	68
the crab nebula facts	0.18	0.1	8654	24
why is it called the crab nebula	0.28	1	5021	55
what caused the crab nebula	1	0.5	3542	92
how to find the crab nebula	1.29	0.9	2400	3
how did the crab nebula form	1.49	1	2125	71
images of the crab nebula	1.61	0.9	6928	77
pictures of the crab nebula	0.13	0.5	5705	21
interesting facts about the crab nebula	0.05	0.4	5513	75
when did the crab nebula explode	0.23	0.3	3584	5
nasa crab nebula image	1.38	0.6	2355	29
crab nebula nasa photos	0.5	1	1084	53