SDO HMI 2014-07-17 12:00:40 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 | 11.54 | 0.00 | 10.06 | 8.51 | 157.86 | 55.48 | 277.33 | 0.8200 | 307.1 | 263.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-17 12:00:40 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 | 1.45 | 0.00 | 1.74 | 7.26 | 168.33 | 65.94 | 275.92 | 0.9124 | -112.0 | -106.6 | |
| 0.00 | 0.82 | 0.00 | 0.79 | 7.19 | 161.88 | 59.49 | 275.67 | 0.8610 | -465.0 | -453.1 | |
| 0.00 | 2.36 | 0.00 | 1.98 | 8.75 | 156.39 | 54.00 | 277.53 | 0.8088 | 494.0 | 368.7 | |
| 0.00 | 0.82 | 0.00 | 0.68 | 8.54 | 156.34 | 53.96 | 277.27 | 0.8083 | 456.0 | 397.8 | |
| 0.00 | 3.27 | 0.00 | 2.72 | 8.49 | 156.12 | 53.74 | 277.21 | 0.8060 | 617.0 | 482.5 | |
| 0.00 | 1.00 | 0.00 | 0.77 | 9.63 | 152.29 | 49.90 | 278.77 | 0.7654 | 509.0 | 434.7 | |
| 0.00 | 1.18 | 0.00 | 0.90 | 9.56 | 151.84 | 49.46 | 278.71 | 0.7604 | 493.0 | 425.1 | |
| 0.00 | 0.64 | 0.00 | 0.48 | 10.62 | 151.64 | 49.25 | 280.12 | 0.7586 | 465.0 | 345.4 | |
| 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. | |