SDO HMI 2014-03-31 19:00:31 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 |
| 7.80 | 24.73 | 8.67 | 27.23 | 9.89 | 148.02 | 61.32 | 284.59 | 0.8945 | -292.6 | -206.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 19:00:31 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 | 1.05 | 0.00 | 1.25 | 10.54 | 150.00 | 63.30 | 284.82 | 0.9103 | -58.0 | -87.1 | |
| 0.00 | 3.07 | 0.00 | 3.57 | 9.88 | 149.62 | 62.92 | 284.19 | 0.9066 | -395.0 | -342.2 | |
| 2.37 | 7.28 | 2.68 | 8.22 | 9.62 | 148.87 | 62.17 | 284.08 | 0.9007 | -393.4 | -357.3 | |
| 1.05 | -3.00 | 1.19 | -3.00 | 9.86 | 148.75 | 62.05 | 284.36 | 0.9003 | -357.5 | 999999 | |
| 0.00 | 0.53 | 0.00 | 0.59 | 9.90 | 148.57 | 61.87 | 284.45 | 0.8990 | -395.0 | -350.5 | |
| 0.00 | 1.23 | 0.00 | 1.37 | 10.01 | 148.48 | 61.78 | 284.60 | 0.8985 | -347.0 | -335.2 | |
| 3.77 | 6.31 | 4.16 | 6.97 | 9.73 | 148.12 | 61.43 | 284.37 | 0.8954 | -636.3 | -482.1 | |
| 0.61 | 2.02 | 0.64 | 2.09 | 10.39 | 146.04 | 59.34 | 285.61 | 0.8805 | 328.7 | 253.8 | |
| 0.00 | 0.70 | 0.00 | 0.71 | 9.11 | 145.66 | 58.96 | 284.29 | 0.8750 | -426.0 | -379.5 | |
| 0.00 | 1.75 | 0.00 | 1.78 | 9.82 | 145.39 | 58.69 | 285.16 | 0.8742 | 401.0 | 345.1 | |
| 0.00 | 0.79 | 0.00 | 0.68 | 11.79 | 139.00 | 52.31 | 289.32 | 0.8230 | 552.0 | 517.1 | |
| 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. | |