| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.90 | 0.00 | 6.10 | -21.65 | 146.31 | 42.28 | 234.48 | 0.7553 | -8.4 | 51.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-17 09:00:40 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 |
| 0.00 | 1.09 | 0.00 | 1.00 | -20.15 | 156.60 | 52.57 | 242.47 | 0.8428 | 411.0 | 415.4 | |
| 0.00 | 0.82 | 0.00 | 0.76 | -21.16 | 156.67 | 52.63 | 241.37 | 0.8465 | 335.0 | 292.6 | |
| 0.00 | 0.73 | 0.00 | 0.64 | -21.64 | 154.32 | 50.28 | 239.89 | 0.8286 | 297.0 | 351.5 | |
| 0.00 | 0.45 | 0.00 | 0.37 | -17.70 | 151.80 | 47.76 | 243.36 | 0.7913 | 595.0 | 495.2 | |
| 0.00 | 1.18 | 0.00 | 0.89 | -21.26 | 146.44 | 42.40 | 236.50 | 0.7559 | 490.0 | 390.0 | |
| 0.00 | 0.27 | 0.00 | 0.21 | -22.93 | 146.07 | 42.04 | 234.33 | 0.7613 | -563.0 | -485.7 | |
| 0.00 | 1.36 | 0.00 | 1.01 | -24.18 | 143.81 | 39.77 | 231.53 | 0.7477 | -443.0 | -412.0 | |
| 0.00 | 1.00 | 0.00 | 0.64 | -23.13 | 131.99 | 27.96 | 223.40 | 0.6297 | -604.0 | -441.5 | |
| 0.00 | 1.00 | 0.00 | 0.58 | -21.52 | 122.72 | 18.68 | 214.39 | 0.5297 | -594.0 | -478.3 | |
| 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. | |