SDO HMI 2014-08-28 08:00:37 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 |
| 14.62 | 28.63 | 18.64 | 36.34 | -17.20 | 206.00 | -63.25 | 112.12 | 0.9223 | 238.0 | 179.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-28 08:00:37 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 |
| 2.06 | 4.22 | 2.50 | 5.10 | -17.24 | 207.30 | -61.95 | 112.53 | 0.9143 | 672.7 | 534.1 | |
| 4.93 | 7.72 | 6.08 | 9.52 | -17.19 | 206.84 | -62.40 | 112.35 | 0.9171 | 305.5 | 44.2 | |
| 0.36 | 1.35 | 0.47 | 1.76 | -18.96 | 205.69 | -63.55 | 113.87 | 0.9275 | 222.5 | 196.1 | |
| 3.14 | 5.11 | 3.98 | 6.47 | -16.84 | 205.94 | -63.31 | 111.72 | 0.9222 | 340.9 | 204.3 | |
| 0.00 | 0.27 | 0.00 | 0.32 | -15.18 | 206.81 | -62.44 | 110.23 | 0.9135 | 329.0 | 287.7 | |
| 0.36 | 1.61 | 0.43 | 1.94 | -14.77 | 206.75 | -62.50 | 109.77 | 0.9131 | 343.0 | 248.9 | |
| 0.81 | 3.86 | 1.03 | 4.95 | -16.52 | 205.55 | -63.69 | 111.29 | 0.9240 | 405.2 | 246.3 | |
| 2.96 | 4.49 | 4.15 | 6.28 | -18.45 | 203.89 | -65.36 | 112.83 | 0.9370 | -315.5 | -261.0 | |
| 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. | |