SDO HMI 2011-08-26 19:59:08 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 |
| 0.00 | 11.47 | 0.00 | 6.30 | -18.39 | 356.69 | 1.75 | 183.86 | 0.4329 | 104.1 | 151.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-26 19:59:08 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 | 1.17 | 0.00 | 0.64 | -18.30 | 357.77 | 2.83 | 186.24 | 0.4327 | 840.0 | 601.6 | |
| 0.00 | 1.43 | 0.00 | 0.79 | -18.43 | 357.52 | 2.58 | 185.66 | 0.4343 | 881.0 | 654.9 | |
| 0.00 | 1.88 | 0.00 | 1.03 | -18.06 | 357.45 | 2.51 | 185.59 | 0.4284 | 781.0 | 675.0 | |
| 0.00 | 2.33 | 0.00 | 1.28 | -18.30 | 357.39 | 2.45 | 185.40 | 0.4320 | 736.0 | 675.0 | |
| 0.00 | 1.97 | 0.00 | 1.08 | -18.63 | 355.83 | 0.88 | 181.93 | 0.4357 | -839.0 | -519.2 | |
| 0.00 | 1.52 | 0.00 | 0.84 | -18.46 | 355.35 | 0.40 | 180.89 | 0.4328 | -902.0 | -743.4 | |
| 0.00 | 1.17 | 0.00 | 0.64 | -18.66 | 355.19 | 0.24 | 180.53 | 0.4360 | -768.0 | -498.8 | |
| 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. | |