| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.56 | 71.15 | 24.60 | 88.70 | -8.34 | 8.55 | -67.16 | 96.31 | 0.9177 | 269.4 | 179.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 15:00:32 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 |
| 3.16 | 56.76 | 3.60 | 65.97 | -8.59 | 10.87 | -64.84 | 96.42 | 0.9024 | 692.0 | 234.6 | |
| 11.84 | -1.00 | 13.82 | -1.00 | -8.61 | 10.21 | -65.50 | 96.48 | 0.9073 | 495.4 | 999999 | |
| 0.00 | 1.32 | 0.00 | 2.04 | -7.17 | 3.80 | -71.91 | 95.40 | 0.9488 | -290.0 | -281.9 | |
| 4.56 | 6.93 | 7.18 | 10.91 | -7.46 | 3.38 | -72.33 | 95.74 | 0.9509 | -275.7 | -148.7 | |
| 0.00 | 6.14 | 0.00 | 9.78 | -7.81 | 3.23 | -72.48 | 96.11 | 0.9515 | 98.0 | 123.8 | |
| 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. | |