SDO HMI 2011-05-01 19:59:07 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 |
| 45.47 | 259.73 | 32.64 | 182.57 | 17.62 | 62.63 | -40.07 | 59.93 | 0.7105 | -552.5 | -283.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-01 19:59:07 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 |
| 35.84 | 241.45 | 24.89 | 167.75 | 17.54 | 63.32 | -39.38 | 59.68 | 0.7032 | -1127.5 | -320.1 | |
| 2.50 | 3.30 | 1.86 | 2.46 | 19.08 | 59.69 | -43.02 | 59.75 | 0.7487 | 638.4 | 549.4 | |
| 0.00 | 1.16 | 0.00 | 0.91 | 19.37 | 56.75 | -45.95 | 60.85 | 0.7787 | 576.0 | 458.2 | |
| 0.00 | 1.16 | 0.00 | 0.99 | 21.07 | 53.47 | -49.23 | 60.33 | 0.8155 | 448.0 | 398.5 | |
| 0.00 | 1.07 | 0.00 | 0.87 | 18.26 | 54.48 | -48.23 | 63.17 | 0.7959 | 697.0 | 533.3 | |
| 0.00 | 0.89 | 0.00 | 0.73 | 18.27 | 54.23 | -48.47 | 63.26 | 0.7982 | 686.0 | 622.7 | |
| 7.13 | 9.18 | 5.89 | 7.58 | 18.39 | 53.85 | -48.86 | 63.28 | 0.8023 | 545.0 | 413.8 | |
| 0.00 | 1.52 | 0.00 | 1.28 | 15.49 | 51.75 | -50.95 | 67.49 | 0.8123 | 463.0 | 355.8 | |
| 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. | |