SDO HMI 2014-03-04 21:00:28 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 |
| 7.34 | 24.10 | 13.51 | 40.48 | -12.15 | 155.41 | 73.89 | 259.46 | 0.9561 | 124.5 | -118.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 21:00:28 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 | 0.86 | 0.00 | 1.52 | -10.72 | 156.14 | 74.62 | 260.90 | 0.9607 | 146.0 | 174.3 | |
| 7.34 | 12.70 | 13.51 | 23.39 | -11.99 | 156.98 | 75.46 | 259.52 | 0.9641 | 302.3 | 132.1 | |
| 0.00 | 0.78 | 0.00 | 1.27 | -13.36 | 154.98 | 73.46 | 258.23 | 0.9540 | 228.0 | 240.3 | |
| 0.00 | 1.30 | 0.00 | 1.93 | -11.91 | 153.11 | 71.59 | 259.88 | 0.9445 | -418.0 | -345.0 | |
| 0.00 | 0.60 | 0.00 | 0.90 | -12.43 | 153.06 | 71.54 | 259.33 | 0.9441 | -194.0 | -121.7 | |
| 0.00 | 1.04 | 0.00 | 1.52 | -12.22 | 152.82 | 71.30 | 259.57 | 0.9428 | -307.0 | -375.0 | |
| 0.00 | 0.95 | 0.00 | 1.38 | -12.36 | 152.63 | 71.11 | 259.43 | 0.9416 | -478.0 | -486.3 | |
| 0.00 | 5.87 | 0.00 | 8.57 | -12.65 | 152.72 | 71.20 | 259.12 | 0.9421 | -508.0 | -355.1 | |
| 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. | |