SDO HMI 2014-03-18 22:00:30 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 13.24 | 57.10 | 18.78 | 80.49 | -17.19 | 326.89 | 70.42 | 254.17 | 0.9347 | 86.8 | -70.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-18 22:00:30 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.31 | 24.72 | 8.50 | 39.89 | -16.54 | 329.69 | 73.22 | 254.86 | 0.9522 | 182.9 | -112.6 | |
| 0.00 | 1.22 | 0.00 | 1.91 | -17.02 | 329.30 | 72.83 | 254.37 | 0.9501 | 67.0 | 65.2 | |
| 0.70 | 1.83 | 1.06 | 2.79 | -16.74 | 328.72 | 72.24 | 254.68 | 0.9470 | 408.1 | 332.8 | |
| 0.00 | 1.13 | 0.00 | 1.59 | -15.87 | 326.87 | 70.40 | 255.67 | 0.9368 | 351.0 | 296.2 | |
| 0.44 | 2.00 | 0.64 | 2.93 | -17.37 | 327.88 | 71.41 | 254.04 | 0.9424 | 352.6 | 283.3 | |
| 0.00 | 2.61 | 0.00 | 3.77 | -17.47 | 327.58 | 71.11 | 253.95 | 0.9406 | 336.0 | 328.0 | |
| 4.61 | 6.79 | 6.39 | 9.39 | -16.54 | 326.67 | 70.20 | 254.95 | 0.9355 | 480.4 | 420.9 | |
| 0.00 | 0.78 | 0.00 | 1.20 | -18.80 | 328.81 | 72.33 | 252.51 | 0.9472 | 355.0 | 332.4 | |
| 0.00 | 1.39 | 0.00 | 1.62 | -17.51 | 322.19 | 65.72 | 253.94 | 0.9064 | -257.0 | -207.6 | |
| 0.00 | 4.96 | 0.00 | 5.71 | -17.79 | 321.93 | 65.45 | 253.63 | 0.9045 | -555.0 | -379.4 | |
| 0.00 | 2.18 | 0.00 | 2.22 | -19.98 | 318.08 | 61.61 | 251.04 | 0.8761 | -498.0 | -348.1 | |
| 1.74 | 3.39 | 1.76 | 3.42 | -19.87 | 317.67 | 61.20 | 251.15 | 0.8728 | -584.4 | -511.5 | |
| 0.00 | 0.96 | 0.00 | 0.95 | -19.62 | 317.11 | 60.64 | 251.41 | 0.8682 | -383.0 | -277.0 | |
| 0.00 | 1.31 | 0.00 | 1.29 | -20.08 | 316.83 | 60.35 | 250.85 | 0.8661 | -513.0 | -449.3 | |
| 0.44 | 1.83 | 0.43 | 1.81 | -21.10 | 317.04 | 60.57 | 249.70 | 0.8684 | -461.6 | -407.4 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |