SDO HMI 2013-01-08 09:58:54 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 |
| 40.03 | 250.17 | 22.63 | 141.26 | -24.57 | 250.00 | 20.60 | 221.78 | 0.4817 | 817.5 | 362.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-01-08 09:58:54 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 |
| 40.03 | 239.90 | 22.63 | 135.66 | -24.58 | 250.26 | 20.86 | 222.17 | 0.4843 | 1362.4 | 403.6 | |
| 0.00 | 1.36 | 0.00 | 0.76 | -25.42 | 247.54 | 18.13 | 217.20 | 0.4668 | 856.0 | 644.5 | |
| 0.00 | 1.02 | 0.00 | 0.55 | -23.27 | 244.81 | 15.40 | 216.14 | 0.4156 | -755.0 | -613.1 | |
| 0.00 | 0.76 | 0.00 | 0.43 | -27.33 | 244.69 | 15.29 | 210.35 | 0.4655 | -646.0 | -567.4 | |
| 0.00 | 1.10 | 0.00 | 0.61 | -26.56 | 244.55 | 15.15 | 211.08 | 0.4546 | -798.0 | -653.2 | |
| 0.00 | 1.02 | 0.00 | 0.55 | -22.38 | 243.72 | 14.31 | 215.61 | 0.3943 | -862.0 | -734.2 | |
| 0.00 | 1.19 | 0.00 | 0.64 | -22.11 | 243.04 | 13.63 | 214.76 | 0.3846 | -932.0 | -697.3 | |
| 0.00 | 0.85 | 0.00 | 0.45 | -21.97 | 241.55 | 12.15 | 212.03 | 0.3696 | -288.0 | -348.1 | |
| 0.00 | 1.95 | 0.00 | 1.07 | -26.47 | 241.76 | 12.35 | 206.41 | 0.4324 | -646.0 | -590.5 | |
| 0.00 | 1.02 | 0.00 | 0.54 | -21.73 | 240.85 | 11.45 | 210.92 | 0.3604 | -902.0 | -790.2 | |
| 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. | |