SDO HMI 2014-03-04 10:00:28 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 |
| 14.69 | 92.14 | 18.46 | 114.68 | -1.72 | 154.12 | 66.55 | 271.27 | 0.9185 | -397.5 | -109.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 10:00:28 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 |
| 0.00 | 1.99 | 0.00 | 2.58 | 1.00 | 154.84 | 67.27 | 274.10 | 0.9262 | -383.0 | -287.7 | |
| 14.69 | 85.57 | 18.46 | 107.69 | -1.75 | 154.41 | 66.84 | 271.20 | 0.9208 | -532.6 | -118.9 | |
| 0.00 | 1.12 | 0.00 | 1.28 | -2.54 | 151.99 | 64.42 | 270.66 | 0.9030 | -433.0 | -324.5 | |
| 0.00 | 1.64 | 0.00 | 1.50 | -3.37 | 144.96 | 57.38 | 270.64 | 0.8430 | 470.0 | 389.1 | |
| 0.00 | 0.78 | 0.00 | 0.70 | -1.82 | 144.03 | 56.46 | 272.61 | 0.8361 | 350.0 | 354.0 | |
| 0.00 | 1.04 | 0.00 | 0.93 | -2.34 | 143.95 | 56.38 | 272.01 | 0.8347 | 502.0 | 462.7 | |
| 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. | |