SDO HMI 2011-10-08 16:59:02 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 |
| 100.72 | 619.69 | 58.11 | 357.58 | 23.11 | 122.02 | -26.90 | 54.24 | 0.5150 | -1356.7 | -369.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-08 16:59:02 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 | 1.49 | 0.00 | 0.84 | 22.28 | 124.31 | -24.61 | 53.60 | 0.4808 | 482.0 | 347.1 | |
| 0.88 | 617.15 | 0.50 | 356.11 | 22.51 | 122.57 | -26.35 | 54.79 | 0.5038 | -1342.1 | -371.2 | |
| 99.84 | -2.00 | 57.61 | -2.00 | 23.11 | 122.01 | -26.91 | 54.24 | 0.5151 | -1402.0 | 999999 | |
| 0.00 | 1.05 | 0.00 | 0.63 | 26.03 | 120.07 | -28.85 | 51.13 | 0.5591 | -597.0 | -469.7 | |
| 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. | |