SDO HMI 2011-07-08 17:59:11 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 |
| 8.44 | 32.58 | 12.88 | 49.93 | 17.04 | 355.11 | 71.04 | 286.80 | 0.9457 | -362.9 | 17.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-07-08 17:59:11 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 |
| 8.44 | 26.69 | 12.88 | 41.48 | 16.96 | 355.33 | 71.26 | 286.70 | 0.9470 | -419.7 | 77.1 | |
| 0.00 | 1.63 | 0.00 | 2.45 | 17.56 | 354.97 | 70.90 | 287.34 | 0.9452 | -343.0 | -264.3 | |
| 0.00 | 1.45 | 0.00 | 2.22 | 18.21 | 355.39 | 71.32 | 288.00 | 0.9476 | -366.0 | -271.9 | |
| 0.00 | 1.63 | 0.00 | 2.37 | 17.44 | 354.28 | 70.21 | 287.24 | 0.9414 | -340.0 | -254.9 | |
| 0.00 | 1.18 | 0.00 | 1.41 | 16.15 | 349.71 | 65.64 | 286.09 | 0.9124 | 328.0 | 219.8 | |
| 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. | |