SDO HMI 2011-10-17 17:59:01 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 |
| 24.59 | 184.08 | 14.55 | 108.95 | -26.62 | 37.07 | 7.44 | 192.22 | 0.5485 | 1086.6 | 359.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-17 17:59:01 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 |
| 24.59 | 175.53 | 14.55 | 103.95 | -26.65 | 37.24 | 7.61 | 192.48 | 0.5494 | 1254.3 | 347.8 | |
| 0.00 | 2.27 | 0.00 | 1.36 | -28.26 | 34.59 | 4.95 | 187.76 | 0.5657 | 666.0 | 515.2 | |
| 0.00 | 1.13 | 0.00 | 0.64 | -22.09 | 34.22 | 4.58 | 189.02 | 0.4737 | 895.0 | 687.8 | |
| 0.00 | 1.31 | 0.00 | 0.74 | -22.52 | 33.68 | 4.04 | 187.84 | 0.4791 | 811.0 | 628.3 | |
| 0.00 | 1.05 | 0.00 | 0.59 | -22.90 | 33.59 | 3.95 | 187.56 | 0.4846 | 652.0 | 546.5 | |
| 0.00 | 1.05 | 0.00 | 0.63 | -28.14 | 33.47 | 3.83 | 186.03 | 0.5620 | 729.0 | 572.5 | |
| 0.00 | 0.96 | 0.00 | 0.57 | -27.28 | 33.23 | 3.60 | 185.85 | 0.5492 | 736.0 | 593.1 | |
| 0.00 | 0.78 | 0.00 | 0.47 | -29.07 | 30.56 | 0.92 | 181.41 | 0.5727 | 678.0 | 527.6 | |
| 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. | |