SDO HMI 2011-08-18 00:59:09 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 |
| 18.36 | 44.29 | 10.03 | 24.20 | -18.04 | 114.00 | 2.89 | 186.46 | 0.4247 | -273.0 | -240.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-18 00:59:09 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 |
| 2.88 | 4.68 | 1.59 | 2.58 | -18.51 | 117.08 | 5.97 | 193.02 | 0.4395 | 962.3 | 852.3 | |
| 0.00 | 1.26 | 0.00 | 0.69 | -18.57 | 116.86 | 5.74 | 192.51 | 0.4397 | 852.0 | 678.1 | |
| 0.00 | 0.90 | 0.00 | 0.50 | -18.47 | 116.40 | 5.29 | 191.60 | 0.4366 | 785.0 | 650.5 | |
| 0.00 | 0.99 | 0.00 | 0.54 | -18.56 | 115.60 | 4.49 | 189.85 | 0.4357 | 815.0 | 581.2 | |
| 0.00 | 2.34 | 0.00 | 1.28 | -18.25 | 115.18 | 4.07 | 189.05 | 0.4298 | 876.0 | 617.6 | |
| 1.80 | 4.23 | 0.98 | 2.30 | -17.54 | 113.89 | 2.77 | 186.40 | 0.4159 | -1000.2 | -682.4 | |
| 11.43 | 16.48 | 6.24 | 8.99 | -17.87 | 113.48 | 2.36 | 185.38 | 0.4205 | -904.3 | -807.3 | |
| 0.00 | 4.23 | 0.00 | 2.32 | -18.58 | 113.46 | 2.34 | 185.17 | 0.4315 | -865.0 | -681.6 | |
| 0.00 | 1.44 | 0.00 | 0.79 | -18.78 | 113.36 | 2.25 | 184.92 | 0.4346 | -731.0 | -555.2 | |
| 2.25 | 3.42 | 1.22 | 1.85 | -17.00 | 113.05 | 1.94 | 184.59 | 0.4061 | 903.2 | 713.7 | |
| 0.00 | 0.99 | 0.00 | 0.54 | -18.68 | 113.04 | 1.93 | 184.24 | 0.4326 | -803.0 | -618.8 | |
| 0.00 | 1.26 | 0.00 | 0.69 | -19.01 | 112.69 | 1.58 | 183.42 | 0.4375 | -803.0 | -614.0 | |
| 0.00 | 0.99 | 0.00 | 0.54 | -17.70 | 111.15 | 0.04 | 180.08 | 0.4159 | -799.0 | -666.3 | |
| 0.00 | 1.08 | 0.00 | 0.59 | -17.53 | 110.55 | -0.57 | 178.68 | 0.4134 | -803.0 | -584.4 | |
| 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. | |