| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| black hole photon radius | 0.11 | 1 | 2610 | 10 | 24 |
| black | 0.54 | 0.9 | 2449 | 94 | 5 |
| hole | 1.26 | 0.7 | 4958 | 69 | 4 |
| photon | 1.59 | 0.3 | 8030 | 92 | 6 |
| radius | 1.24 | 0.9 | 2401 | 46 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| black hole photon radius | 0.52 | 0.8 | 6923 | 68 |
| photon ring black hole | 0.1 | 0.1 | 2521 | 81 |
| photon sphere of a black hole | 1.87 | 0.8 | 3854 | 76 |
| radius of black hole | 0.79 | 1 | 9246 | 73 |
| black hole radius calculator | 0.02 | 0.1 | 9424 | 35 |
| black hole radius formula | 1.05 | 0.4 | 4805 | 94 |
| evening radius of a black hole | 0.92 | 0.9 | 3187 | 66 |
| gravitational radius of a black hole | 0.68 | 0.4 | 1492 | 99 |
| reddit black hole photon sphere | 0.08 | 1 | 3392 | 11 |
| black holes with multiple photon spheres | 0.42 | 0.6 | 2201 | 13 |
| black hole picture high resolution | 0.04 | 0.6 | 120 | 72 |
| black hole high resolution images | 0.09 | 1 | 8343 | 17 |
| trapping photons with optical black hole | 1.64 | 0.7 | 8904 | 43 |
| black hole high resolution | 0.77 | 0.3 | 3529 | 28 |
| actual photo of a black hole | 1.39 | 0.4 | 6286 | 92 |
| photo of a black hole explained | 1.25 | 0.4 | 5802 | 28 |
| whats the black hole radiation | 0.58 | 0.6 | 439 | 22 |
