| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.17 | 10.92 | 2.12 | 10.49 | -17.82 | 47.82 | 59.64 | 253.52 | 0.8586 | 114.2 | 22.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-11 23:00:29 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 |
| 1.65 | 2.86 | 1.64 | 2.85 | -17.93 | 49.12 | 60.94 | 253.44 | 0.8696 | 446.4 | 367.6 | |
| 0.00 | 1.04 | 0.00 | 1.01 | -17.53 | 48.19 | 60.01 | 253.87 | 0.8618 | 329.0 | 301.4 | |
| 0.00 | 2.60 | 0.00 | 2.51 | -18.58 | 48.02 | 59.84 | 252.65 | 0.8607 | -205.0 | -112.8 | |
| 0.52 | 1.99 | 0.48 | 1.83 | -15.91 | 46.10 | 57.92 | 255.70 | 0.8430 | 501.5 | 409.5 | |
| 0.00 | 1.39 | 0.00 | 1.31 | -18.35 | 47.21 | 59.03 | 252.87 | 0.8537 | -389.0 | -352.9 | |
| 0.00 | 1.04 | 0.00 | 0.98 | -18.76 | 47.13 | 58.95 | 252.38 | 0.8532 | -396.0 | -376.5 | |
| 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. | |