| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 26.38 | 165.47 | 21.69 | 135.68 | -24.88 | 190.00 | 49.40 | 239.84 | 0.7989 | 647.5 | 253.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-21 05:00:38 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 |
| 26.38 | 159.08 | 21.69 | 130.85 | -24.80 | 190.20 | 49.60 | 240.01 | 0.8004 | 968.1 | 284.0 | |
| 0.00 | 1.26 | 0.00 | 0.96 | -25.80 | 185.64 | 45.04 | 237.04 | 0.7616 | -348.0 | -429.6 | |
| 0.00 | 1.44 | 0.00 | 1.09 | -25.68 | 185.20 | 44.60 | 237.00 | 0.7569 | -702.0 | -563.7 | |
| 0.00 | 0.63 | 0.00 | 0.47 | -25.38 | 185.06 | 44.46 | 237.31 | 0.7543 | -586.0 | -492.6 | |
| 0.00 | 0.99 | 0.00 | 0.75 | -27.85 | 184.41 | 43.81 | 233.99 | 0.7590 | -579.0 | -384.0 | |
| 0.00 | 1.17 | 0.00 | 0.88 | -28.57 | 183.87 | 43.28 | 232.86 | 0.7575 | -485.0 | -396.0 | |
| 0.00 | 0.90 | 0.00 | 0.68 | -28.78 | 183.74 | 43.15 | 232.55 | 0.7573 | -367.0 | -350.4 | |
| 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. | |