SDO HMI 2014-08-28 05:00:37 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 |
| 8.97 | 28.18 | 11.88 | 37.61 | -16.95 | 206.38 | -64.51 | 111.51 | 0.9296 | 315.7 | 109.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-28 05:00:37 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 |
| 2.15 | 5.02 | 2.79 | 6.51 | -17.24 | 207.19 | -63.70 | 112.03 | 0.9253 | 586.8 | 426.8 | |
| 0.00 | 1.08 | 0.00 | 1.50 | -18.94 | 205.78 | -65.10 | 113.41 | 0.9364 | 220.0 | 219.2 | |
| 2.87 | 10.59 | 3.78 | 14.07 | -17.23 | 206.68 | -64.21 | 111.88 | 0.9283 | 320.6 | -43.2 | |
| 2.42 | 4.04 | 3.27 | 5.45 | -16.86 | 205.96 | -64.93 | 111.30 | 0.9320 | 344.9 | 221.7 | |
| 0.54 | 2.51 | 0.69 | 3.24 | -14.90 | 206.63 | -64.26 | 109.44 | 0.9247 | 250.3 | 232.3 | |
| 0.99 | 4.04 | 1.35 | 5.54 | -16.55 | 205.55 | -65.34 | 110.87 | 0.9339 | 327.1 | 186.9 | |
| 0.00 | 0.90 | 0.00 | 1.30 | -17.49 | 204.42 | -66.46 | 111.56 | 0.9417 | -429.0 | -388.7 | |
| 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. | |