SDO HMI 2014-04-18 18:00:34 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 |
| 22.14 | 137.72 | 19.82 | 120.47 | 11.83 | 262.51 | 52.84 | 288.54 | 0.8225 | -425.2 | -155.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 18:00:34 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 |
| 10.98 | 125.49 | 9.88 | 112.53 | 11.89 | 263.87 | 54.20 | 288.03 | 0.8368 | -749.9 | -217.1 | |
| 11.16 | -1.00 | 9.94 | -1.00 | 11.61 | 263.52 | 53.86 | 287.81 | 0.8330 | -1084.8 | 999999 | |
| 0.00 | 0.62 | 0.00 | 0.47 | 12.57 | 255.42 | 45.75 | 291.82 | 0.7554 | 443.0 | 393.6 | |
| 0.00 | 1.15 | 0.00 | 0.75 | 12.86 | 245.91 | 36.24 | 297.07 | 0.6496 | 622.0 | 457.9 | |
| 0.00 | 0.71 | 0.00 | 0.46 | 12.98 | 245.85 | 36.19 | 297.28 | 0.6496 | 418.0 | 429.6 | |
| 0.00 | 1.33 | 0.00 | 0.86 | 12.70 | 245.27 | 35.61 | 297.25 | 0.6411 | 630.0 | 553.2 | |
| 0.00 | 1.86 | 0.00 | 1.20 | 12.98 | 245.28 | 35.62 | 297.65 | 0.6429 | 748.0 | 569.7 | |
| 0.00 | 1.06 | 0.00 | 0.68 | 12.72 | 245.08 | 35.42 | 297.40 | 0.6390 | 884.0 | 742.2 | |
| 0.00 | 2.57 | 0.00 | 1.66 | 13.13 | 245.11 | 35.45 | 297.96 | 0.6418 | 683.0 | 563.2 | |
| 0.00 | 1.42 | 0.00 | 0.91 | 12.87 | 244.96 | 35.29 | 297.70 | 0.6384 | 745.0 | 660.0 | |
| 0.00 | 1.51 | 0.00 | 0.95 | 13.00 | 243.92 | 34.26 | 298.58 | 0.6269 | 763.0 | 610.1 | |
| 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. | |