SDO HMI 2014-05-31 10:00:39 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 |
| 7.50 | 18.60 | 6.73 | 17.28 | -13.99 | 62.33 | 56.78 | 253.86 | 0.8463 | -142.6 | 57.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-31 10:00:39 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 | 1.99 | 0.00 | 2.06 | -12.24 | 66.47 | 60.91 | 256.45 | 0.8804 | 515.0 | 329.7 | |
| 1.36 | 2.71 | 1.38 | 2.76 | -12.66 | 65.80 | 60.25 | 255.90 | 0.8753 | 424.9 | 356.0 | |
| 0.00 | 0.27 | 0.00 | 0.30 | -18.64 | 67.53 | 61.98 | 249.44 | 0.8952 | 452.0 | 387.7 | |
| 0.00 | 1.63 | 0.00 | 1.61 | -18.71 | 63.92 | 58.37 | 248.72 | 0.8675 | 483.0 | 354.1 | |
| 0.00 | 1.26 | 0.00 | 1.23 | -18.84 | 63.44 | 57.89 | 248.47 | 0.8638 | 502.0 | 421.8 | |
| 6.14 | 9.03 | 5.35 | 7.86 | -13.24 | 59.95 | 54.40 | 254.36 | 0.8241 | -600.6 | -416.6 | |
| 0.00 | 0.81 | 0.00 | 0.70 | -12.69 | 59.29 | 53.74 | 254.92 | 0.8169 | -503.0 | -446.8 | |
| 0.00 | 0.90 | 0.00 | 0.76 | -12.91 | 58.73 | 53.18 | 254.55 | 0.8117 | -637.0 | -537.0 | |
| 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. | |