SDO HMI 2014-03-31 21:00:32 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 |
| 6.30 | 23.15 | 7.17 | 26.44 | 10.03 | 147.93 | 62.34 | 284.51 | 0.9020 | -246.3 | -220.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 21:00:32 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 | 1.84 | 0.00 | 2.27 | 10.50 | 150.00 | 64.41 | 284.52 | 0.9178 | -166.0 | -163.9 | |
| 0.00 | 0.44 | 0.00 | 0.53 | 9.85 | 149.68 | 64.09 | 283.90 | 0.9147 | -319.0 | -318.4 | |
| 0.00 | 1.40 | 0.00 | 1.73 | 10.62 | 149.90 | 64.31 | 284.67 | 0.9173 | -280.0 | -204.6 | |
| 0.00 | 1.14 | 0.00 | 1.38 | 9.96 | 149.58 | 63.99 | 284.04 | 0.9141 | -319.0 | -250.0 | |
| 1.75 | 3.42 | 2.07 | 4.03 | 9.65 | 148.92 | 63.32 | 283.85 | 0.9091 | -424.0 | -365.3 | |
| 0.00 | 0.61 | 0.00 | 0.72 | 9.47 | 148.72 | 63.13 | 283.70 | 0.9074 | -236.0 | -222.4 | |
| 0.00 | 3.86 | 0.00 | 4.52 | 9.84 | 148.71 | 63.12 | 284.10 | 0.9079 | -391.0 | -342.1 | |
| 2.98 | 4.82 | 3.42 | 5.53 | 9.72 | 148.13 | 62.54 | 284.10 | 0.9036 | -554.9 | -508.8 | |
| 0.96 | 1.93 | 1.04 | 2.07 | 10.37 | 146.03 | 60.44 | 285.32 | 0.8891 | 191.9 | 160.4 | |
| 0.61 | 1.67 | 0.64 | 1.75 | 9.85 | 145.44 | 59.84 | 284.89 | 0.8835 | 118.1 | 170.7 | |
| 0.00 | 0.79 | 0.00 | 0.83 | 11.19 | 145.20 | 59.61 | 286.43 | 0.8842 | -372.0 | -277.7 | |
| 0.00 | 0.70 | 0.00 | 0.63 | 11.81 | 139.03 | 53.44 | 288.95 | 0.8334 | 219.0 | 268.5 | |
| 0.00 | 0.53 | 0.00 | 0.45 | 10.38 | 138.14 | 52.55 | 287.58 | 0.8213 | 382.0 | 438.2 | |
| 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. | |