SDO HMI 2011-10-29 21:59:00 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 |
| 0.00 | 18.10 | 0.00 | 13.41 | 16.91 | 276.44 | 47.27 | 288.83 | 0.7427 | 257.8 | -15.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-29 21:59:00 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 | 1.71 | 16.09 | 283.75 | 54.58 | 286.45 | 0.8186 | -532.0 | -341.5 | |
| 0.00 | 4.25 | 0.00 | 3.35 | 16.61 | 279.94 | 50.77 | 287.62 | 0.7811 | -782.0 | -543.4 | |
| 0.00 | 2.08 | 0.00 | 1.60 | 17.71 | 278.59 | 49.42 | 289.27 | 0.7687 | -524.0 | -413.6 | |
| 0.00 | 0.69 | 0.00 | 0.52 | 17.47 | 276.89 | 47.72 | 289.30 | 0.7501 | 463.0 | 362.0 | |
| 0.00 | 1.04 | 0.00 | 0.74 | 12.89 | 275.28 | 46.11 | 283.42 | 0.7246 | 606.0 | 476.8 | |
| 0.00 | 1.56 | 0.00 | 1.10 | 15.97 | 274.02 | 44.85 | 287.91 | 0.7149 | 492.0 | 347.8 | |
| 0.00 | 0.69 | 0.00 | 0.48 | 15.07 | 273.17 | 44.00 | 286.83 | 0.7031 | 655.0 | 551.2 | |
| 0.00 | 1.21 | 0.00 | 0.83 | 16.57 | 271.99 | 42.82 | 289.24 | 0.6923 | 392.0 | 321.9 | |
| 0.00 | 0.95 | 0.00 | 0.66 | 20.40 | 272.15 | 42.98 | 294.55 | 0.7049 | 579.0 | 495.0 | |
| 0.00 | 1.99 | 0.00 | 1.34 | 19.43 | 270.34 | 41.17 | 293.83 | 0.6809 | 594.0 | 439.0 | |
| 0.00 | 0.87 | 0.00 | 0.57 | 16.17 | 269.15 | 39.98 | 289.46 | 0.6567 | 567.0 | 459.3 | |
| 0.00 | 0.78 | 0.00 | 0.51 | 18.31 | 268.76 | 39.59 | 292.76 | 0.6585 | 584.0 | 447.6 | |
| 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. | |