SDO HMI 2014-09-01 13:00:37 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 | 9.11 | 0.00 | 5.18 | 8.33 | 184.85 | -28.81 | 86.03 | 0.4824 | -507.1 | -426.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-01 13:00:37 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 | 0.98 | 0.00 | 0.54 | 6.06 | 187.42 | -26.24 | 90.89 | 0.4416 | -703.0 | -573.2 | |
| 0.00 | 1.16 | 0.00 | 0.65 | 1.80 | 187.29 | -26.37 | 100.31 | 0.4532 | -610.0 | -481.2 | |
| 0.00 | 1.61 | 0.00 | 0.90 | 10.62 | 186.51 | -27.15 | 80.71 | 0.4564 | -835.0 | -688.9 | |
| 0.00 | 1.07 | 0.00 | 0.60 | 11.20 | 185.58 | -28.08 | 79.63 | 0.4714 | -666.0 | -559.2 | |
| 0.00 | 1.70 | 0.00 | 0.96 | 11.28 | 185.39 | -28.27 | 79.50 | 0.4743 | -697.0 | -554.5 | |
| 0.00 | 1.52 | 0.00 | 0.86 | 4.40 | 185.41 | -28.25 | 94.09 | 0.4751 | -663.0 | -520.2 | |
| 0.00 | 1.07 | 0.00 | 0.67 | 11.70 | 176.00 | -37.66 | 80.11 | 0.6095 | 624.0 | 520.9 | |
| 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. | |