SDO HMI 2011-09-03 13:59:07 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 |
| 14.93 | 42.00 | 10.75 | 29.81 | 18.96 | 297.89 | 45.31 | 289.72 | 0.7154 | -368.7 | -232.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-09-03 13:59:07 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 | 1.52 | 0.00 | 1.15 | 21.29 | 301.22 | 48.64 | 292.02 | 0.7567 | -539.0 | -370.7 | |
| 14.93 | 34.95 | 10.75 | 25.19 | 18.59 | 299.00 | 46.42 | 288.84 | 0.7278 | -814.6 | -403.2 | |
| 0.00 | 0.89 | 0.00 | 0.60 | 19.29 | 294.02 | 41.44 | 290.93 | 0.6711 | 416.0 | 414.4 | |
| 0.00 | 1.34 | 0.00 | 0.85 | 20.09 | 290.08 | 37.50 | 293.40 | 0.6252 | 632.0 | 521.7 | |
| 0.00 | 0.80 | 0.00 | 0.51 | 20.46 | 289.29 | 36.72 | 294.28 | 0.6167 | 656.0 | 544.1 | |
| 0.00 | 1.52 | 0.00 | 0.92 | 22.34 | 285.88 | 33.30 | 298.88 | 0.5821 | 753.0 | 625.2 | |
| 0.00 | 0.98 | 0.00 | 0.59 | 21.80 | 285.42 | 32.84 | 298.25 | 0.5738 | 662.0 | 474.6 | |
| 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. | |