SDO HMI 2011-08-17 13:59:09 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 |
| 5.13 | 25.02 | 2.79 | 13.68 | -18.03 | 114.33 | -2.86 | 173.51 | 0.4242 | -247.8 | 6.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-17 13:59:09 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 | 5.67 | 0.00 | 3.11 | -18.48 | 116.88 | -0.32 | 179.29 | 0.4278 | 851.0 | 759.3 | |
| 0.00 | 2.79 | 0.00 | 1.52 | -18.18 | 116.46 | -0.73 | 178.35 | 0.4231 | 963.0 | 709.3 | |
| 2.25 | 4.05 | 1.23 | 2.22 | -18.16 | 113.81 | -3.39 | 172.40 | 0.4261 | -891.3 | -642.4 | |
| 0.00 | 0.63 | 0.00 | 0.35 | -18.50 | 113.71 | -3.49 | 172.28 | 0.4316 | -647.0 | -427.3 | |
| 0.00 | 1.80 | 0.00 | 0.98 | -18.06 | 113.56 | -3.64 | 171.80 | 0.4251 | -963.0 | -839.3 | |
| 0.00 | 2.52 | 0.00 | 1.38 | -17.76 | 113.47 | -3.73 | 171.50 | 0.4206 | -927.0 | -731.0 | |
| 0.00 | 1.44 | 0.00 | 0.79 | -18.33 | 113.17 | -4.03 | 171.04 | 0.4303 | -727.0 | -567.4 | |
| 0.00 | 1.08 | 0.00 | 0.59 | -18.37 | 113.04 | -4.16 | 170.78 | 0.4312 | -719.0 | -556.5 | |
| 2.88 | 3.87 | 1.56 | 2.10 | -17.03 | 112.78 | -4.41 | 169.64 | 0.4110 | 834.0 | 635.2 | |
| 0.00 | 1.17 | 0.00 | 0.64 | -17.90 | 109.84 | -7.35 | 163.68 | 0.4352 | -709.0 | -490.5 | |
| 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. | |