SDO HMI 2014-12-04 01:00:25 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 | 5.30 | 0.00 | 3.47 | -23.78 | 94.12 | 33.88 | 231.22 | 0.6572 | -149.2 | -81.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 01:00:25 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 | 0.94 | 0.00 | 0.63 | -24.70 | 95.71 | 35.47 | 231.16 | 0.6793 | 581.0 | 516.2 | |
| 0.00 | 0.77 | 0.00 | 0.49 | -18.93 | 94.08 | 33.84 | 237.81 | 0.6248 | -665.0 | -566.8 | |
| 0.00 | 1.28 | 0.00 | 0.86 | -25.09 | 95.52 | 35.28 | 230.53 | 0.6800 | 594.0 | 524.8 | |
| 0.00 | 1.20 | 0.00 | 0.78 | -24.00 | 93.53 | 33.29 | 230.48 | 0.6524 | -604.0 | -475.0 | |
| 0.00 | 1.11 | 0.00 | 0.71 | -24.50 | 91.71 | 31.47 | 228.39 | 0.6377 | -652.0 | -586.8 | |
| 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. | |