| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.31 | 0.00 | 3.42 | 7.91 | 326.76 | 39.75 | 274.28 | 0.6364 | 668.8 | 561.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-23 06:00:34 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 |
| 0.00 | 2.48 | 0.00 | 1.65 | 7.17 | 329.14 | 42.13 | 272.92 | 0.6687 | 688.0 | 603.7 | |
| 0.00 | 0.62 | 0.00 | 0.41 | 6.87 | 329.10 | 42.10 | 272.46 | 0.6685 | 672.0 | 551.1 | |
| 0.00 | 0.97 | 0.00 | 0.64 | 6.29 | 328.43 | 41.42 | 271.53 | 0.6602 | 660.0 | 499.1 | |
| 0.00 | 1.24 | 0.00 | 0.72 | 11.65 | 318.48 | 31.47 | 280.87 | 0.5228 | 655.0 | 528.1 | |
| 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. | |