| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 56.59 | 379.89 | 37.28 | 250.84 | 31.29 | 188.99 | -23.57 | 31.19 | 0.6622 | -1147.9 | -343.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-04 05:58:55 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 |
| 55.57 | 373.35 | 36.60 | 246.31 | 31.24 | 189.04 | -23.52 | 31.18 | 0.6614 | -1292.8 | -351.8 | |
| 0.00 | 1.19 | 0.00 | 0.80 | 32.74 | 188.63 | -23.93 | 30.25 | 0.6796 | 141.0 | 118.9 | |
| 1.02 | -1.00 | 0.68 | -1.00 | 31.52 | 188.25 | -24.31 | 31.74 | 0.6696 | -485.6 | 999999 | |
| 0.00 | 1.53 | 0.00 | 1.08 | 35.15 | 187.10 | -25.46 | 29.63 | 0.7134 | 443.0 | 383.3 | |
| 0.00 | 1.87 | 0.00 | 1.40 | 38.28 | 185.11 | -27.46 | 28.76 | 0.7545 | 579.0 | 425.8 | |
| 0.00 | 1.95 | 0.00 | 1.25 | 28.31 | 188.23 | -24.33 | 34.87 | 0.6368 | -901.0 | -731.2 | |
| 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. | |