| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 44.23 | 297.22 | 29.68 | 199.01 | 12.00 | 275.30 | 38.68 | 294.63 | 0.6748 | -947.5 | -333.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-16 17:00:34 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 |
| 44.23 | 286.34 | 29.68 | 192.16 | 11.93 | 275.50 | 38.88 | 294.40 | 0.6767 | -1245.7 | -363.6 | |
| 0.00 | 2.57 | 0.00 | 1.69 | 13.65 | 273.19 | 36.56 | 298.14 | 0.6588 | -365.0 | -358.6 | |
| 0.00 | 1.24 | 0.00 | 0.77 | 12.76 | 269.76 | 33.13 | 299.21 | 0.6130 | 736.0 | 546.9 | |
| 0.00 | 1.59 | 0.00 | 0.99 | 14.02 | 268.89 | 32.26 | 301.68 | 0.6108 | 657.0 | 504.4 | |
| 0.00 | 3.98 | 0.00 | 2.47 | 14.15 | 268.32 | 31.70 | 302.32 | 0.6051 | 844.0 | 728.2 | |
| 0.00 | 0.88 | 0.00 | 0.55 | 14.62 | 268.22 | 31.59 | 303.08 | 0.6071 | 563.0 | 509.0 | |
| 0.00 | 0.62 | 0.00 | 0.38 | 15.32 | 267.49 | 30.86 | 304.67 | 0.6038 | 731.0 | 667.7 | |
| 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. | |